Abstract: A position determination method in a vehicle, which uses signals from a pressure-based collision sensor. In addition, an associated electronic control module and an associated use.

Abstract: A navigation satellite system includes a first electronic device that decides, based on received GNSS correction data, integer ambiguity in a difference between a first carrier phase of a first radio wave received by a fixed station and a second carrier phase of a second radio wave received by the first electronic device to calculate a path difference between the first radio wave and the second radio wave. The system also includes a second electronic device that calculates, based on the GNSS correction data, a difference between a third carrier phase of a third radio wave received by the second electronic device and the first carrier phase received from the first electronic device and calculates, by using the integer ambiguity, a path difference between the first radio wave and the third radio wave to calculate second relative coordinates of the second electronic device with respect to the fixed station.

Abstract: An own position estimation device detects a landmark position of a landmark existing around a mobile body, detects a movement amount of the mobile body, and accumulates, as pieces of landmark position data, landmark positions each obtained by moving the detected landmark position by the movement amount. The device then acquires map information including landmark positions of landmarks existing on a map by the controller, matches the pieces of landmark position data in a certain range with the landmark positions included in the map information, and estimates the own position of the mobile body, the certain range being set based on movement records of the mobile body traveling to a current position.

Abstract: Apparatus and methods related to generating roadmaps are provided. A layout of an environment can be displayed on a display. Input data indicative of a plurality of shapes placed on the layout can be received, where each shape corresponds to an aisle of a plurality of aisles. For each aisle, lanes can be generated based on a width of the aisle, and the lanes extend along the aisle such that a robotic device can traverse each lane. An intersection between a first shape and second shape can be identified, where the first and second shape correspond to a first and second aisle. Responsive to identifying the intersection and based on a swept space of the robotic device, a curve that connects a first lane of the first aisle to a second lane of the second aisle can be generated. Then, a roadmap that comprises the aisles and curve can be generated.

Abstract: An apparatus comprising: at least one processor; and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the following: based on a determined match between a user travel profile and a navigation data update, providing an option to update user navigation data for the user, in respect one or more parts of the user navigation data which are matched to the user travel profile, the user travel profile representing one or more of a location travelled by the user and a location searched by the user within a particular defined time-frame.

Abstract: A data structure of an environment map includes: position information indicating a position in a space; and a state quantity variability of the position. The state quantity variability is correlated with the position information, and the state quantity variability indicates a variation tendency of a state quantity of the position with respect to time.

Abstract: A transportation management system that includes tools for generating an optimized trip plan that can be updated, such as based on driver input, during implementation of a planned trip. The system includes a comprehensive trip optimization tool that generates a trip plan with fuel stop and rest stop optimization. The system includes tools calculating estimated time of arrival (ETA) and projected time of availability (PTA) for the driver, and these tools are adapted to provide the ETA and PTA for the entire trip (rather than only providing an ETA for the next stop). The system further includes tools accepting driver input and/or allowing driver manipulation of a dispatched trip plan such as using pre-filtered alternatives for fuel stops or rest stops or routes, e.g., based on stored driver preferences, that may be less optimal than those in the original trip plan but still viable.

Abstract: A determiner determines execution of rerouting. A notifier notifies the execution of rerouting if the determiner determines the execution of rerouting. A searcher executes a rerouting search if the determiner determines the execution of rerouting. A measurer measures the distance by which a navigation device has moved along a guide route, which is a result of the rerouting search by the searcher. In a case in which the determiner determines execution of next rerouting, the notifier notifies the execution of rerouting if the measured distance is longer than a threshold value and does not notify the execution of rerouting if the measured distance is smaller than or equal to the threshold value.

Abstract: An apparatus for controlling a path of a vehicle includes: a path generating processor configured to generate a first path by searching for a path from a current location of the vehicle to a destination and generate a second path by searching for a path from a path deviation prediction area on the first path to the destination based on a request; a path deviation area extracting processor configured to extract the path deviation prediction area based on road attributes on the first path; and a path controller configured to determine whether to generate the second path based on a congestion level of a road around the vehicle and reset a driving path of the vehicle to the second path when path deviation occurs on the extracted path deviation prediction area.

Abstract: A vehicle having a route planning device that includes a processor configured to identify a start location for a journey and a destination for the journey. One or more modes of transport for completing at least a portion of the journey are identified. The processor generates a travel route from the start location to the destination. The generated route includes a plurality of modes of transport. At least one of the one or more identified modes of transport is selected in dependence on one or more preferences associated with the user. Also provided is a method of planning a travel route.

Abstract: A computer-implemented system and method for dynamic travel coordination is provided. A common destination is designated for a group of travelers for arrival at a common time. A mode of travel and a set of travel criteria are designated for each traveler. The travel criteria are determined for at least one of the travelers by receiving travel criteria for the at least one traveler from another traveler and receiving from the at least one traveler modifications to the received travel criteria. An initial route to the common destination at the common arrival time is created for each of the travelers based on the travel mode and travel criteria for that traveler. The initial route of one or more of the travelers is revised based on at least one of that traveler's designated travel criteria, a progress of one or more of the travelers, and travel conditions of the initial route.

Abstract: A navigation apparatus (including configurable circuitry) and method for displaying a plurality of control parameters to carry out a process for generating at least one optimum route for use in navigation of an autonomous vehicle, receiving a plurality of weights corresponding to the plurality of control parameters to generate a route score corresponding to the at least one route, transmitting the plurality of control parameters and the plurality of weights to a server implementing an optimization algorithm to calculate the at least one optimum route using the plurality of control parameters and the plurality of weights, receiving the at least one optimum route and the route score generated by the server, and displaying the at least one optimum route and the route score to enable selection of the at least one optimum route for navigation of the autonomous vehicle from the start location to the destination.

Abstract: A navigation device includes: a search request transmitting unit to transmit a route search request including an avoidance range specified by using longitude and latitude; and a search result receiving unit to receive route information transmitted in response to the route search request. A route providing device includes a search request receiving unit to receive the route search request transmitted from the navigation device; an avoidance road identifying unit to identify a road corresponding to the avoidance range included in the route search request; a route search processing unit to determine an optimal route to reach a destination by bypassing the road corresponding to the avoidance range; and a search result transmitting unit to transmit, to the navigation device, the route information indicating the determined route.

Abstract: Provided herein is a method, apparatus and computer program product for the generation of a route. In particular, the method may include receiving a plurality of trace points, where each of the plurality of trace points includes location information, receiving a distance tolerance value for each trace point, generating a first portion of a route using a first subset of the plurality of trace points, generating a second portion of the route using a second subset of the plurality of trace points, and concatenating the first portion of the route with the second portion of the route to generate a route. Generating the first portion of the route or the second portion of the route may optionally include removing a trace point that is less than a proximity tolerance distance away from a trace point immediately preceding the removed trace point in sequence.

Abstract: A method for optimizing the switch-on time of a Coriolis gyroscope (1) having a mass system (100) which can be excited to an excitation oscillation of the Coriolis gyroscope (1) parallel to a first axis (x), wherein a deflection of the mass system on account of a Coriolis force along a second axis (y) which is provided perpendicular to the first axis (x) can be verified using an output signal from the Coriolis gyroscope, comprises determining the amplitude (A) of the excitation oscillation of the Coriolis gyroscope at a defined time, determining the output signal (S) from the Coriolis gyroscope at the defined time, and generating a normalized output signal (S0) from the Coriolis gyroscope by multiplying the determined output signal (S) by the quotient of the amplitude (A0) of the excitation oscillation of the Coriolis gyroscope in the steady state and the determined amplitude (A).

Abstract: Systems and methods for monitoring a utility resource are disclosed. One system includes a plurality of utility resource usage capture components connected to a utility resource management computing system via a satellite communications network. Each of the utility resource usage capture components includes a utility resource meter interface and a satellite communication module. The utility resource meter interface is configured to communicate with a plurality of different types of utility resource meters from a plurality of different manufacturers. Each of the plurality of utility resource usage capture components has a low power state and an operational state and configured to automatically enter the operational state, interrogate an associated utility resource meter to obtain a reading and communicate the reading via the satellite communication module, and return to the low power state.

Abstract: A meter is provided having a communication interface for receiving and interfacing with a communication device for transmitting measurement and other data to a central computer station via the communication device. The meter includes a measurement module for obtaining measurement data and a processor having a memory for storing application software for communicating the measurement and other data to the communication interface. The data are then provided to the communication device via the communication interface. The communication device is preferably a plug-and-play PCMCIA-type card or other type of memory card having a processor and a connection port for connecting to a port adaptor of the communication interface for receiving the data via the connection port-port adaptor connection.

Abstract: A position sensing system for measuring a position of a moving object includes a first magnetic sensor configured to measure an intensity of a magnetic field produced by the moving object. The system includes a controller configured to estimate a position of the moving object based on a nonlinear model of the magnetic field produced by the moving object as a function of position around the moving object, and based on the measured intensity of the magnetic field produced by the moving object.

Abstract: A magnetic field sensor can sense a movement of an object along a path. A movement line is tangent to the path. The magnetic field sensor can include a semiconductor substrate. The semiconductor substrate can have first and second orthogonal axes orthogonal to each other on the first surface of the substrate. A projection of the movement line onto a surface of the semiconductor substrate is only substantially parallel to the first orthogonal axis. The magnetic field sensor can also include first, second, third, and fourth magnetic field sensing elements disposed on the substrate. The first and second magnetic field sensing elements have maximum response axes parallel to the first orthogonal axis and the second and fourth magnetic field sensing elements have maximum response axes parallel to the second orthogonal axis. Signals generated by the second and fourth magnetic field sensing elements can be used as reference signals.

Abstract: A rotary encoder for measuring absolute rotation around an axis of the rotary encoder, comprising: a magnetised element comprising first and second surfaces at an angle to one another; a first magnetic track provided on the first surface and a second magnetic track provided on the second surface, wherein the first and second magnetic tracks subtend an angle ? around the axis of the rotary encoder, wherein each magnetic track comprises a number of magnetic pole pairs, a magnetic pole pair being formed of two poles defining regions of opposite magnetic polarization, wherein the number of magnetic pole pairs in each track are different and have a greatest common factor of one; and first and second magnetic sensor arrangements, the first magnetic sensor arrangement arranged to detect a magnetic field of the first magnetic track and the second magnetic sensor arrangement arranged to detect a magnetic field of the second magnetic track, wherein the magnetic sensor arrangements are rotatably coupled to the magnetise

Abstract: A method for producing a sensor includes a circuit carrier which includes an assembly island which supports a sensor circuit for emitting a sensor signal dependent on a physical transmitting field, and an interface which is electrically connected to the assembly island and which transmits the sensor signal to a superordinate signal processing device. The method includes: Enveloping one part of the circuit carrier containing the assembly island and the sensor circuit in a first protective compound; connecting a signal transmission element to the interface; enveloping at least one part of the first protective compound and the interface to at least one part of the signal transmission element connected thereto in a second protective compound.

Abstract: A position measuring device includes: a first graduation carrier having a measuring graduation; a scanning unit, which is arranged so as to allow movement in a measuring direction relative to the measuring graduation in order to generate position-dependent scanning signals by scanning the measuring graduation; a signal processing unit for processing the scanning signals into positional signals; and a signal interface via which the positional signals are able to be output to subsequent electronics. At least one correction unit is provided in the signal processing unit by which at least one signal error of at least one scanning signal is able to be corrected. A monitoring unit is arranged to detect the reaching of a limit value of the signal error, and a correction unit triggering the event is able to be deactivated subsequently.

Abstract: A position measuring device includes a measuring standard and a scanning unit, which are arranged in a manner that allows them to move relative to each other in a measuring direction. The measuring standard includes a graduation, which is scannable by the scanning unit in order to generate positional signals. The scanning unit includes an illumination unit and a detector unit for generating positional signals, the illumination unit being able to emit light in the direction of the graduation and the detector unit being able to detect light modulated by the graduation. The detector unit includes a circuit board and a sensor unit, which is arranged as a semiconductor chip. At least two photodetectors are provided on a front side of the sensor unit facing the graduation, and the electrical connections of the sensor unit are routed to contact surfaces on its rear side by metallic vias. The sensor unit is connected via the contact surfaces to corresponding contact surfaces on the circuit board.

Abstract: An optical detection system includes a first device that has a first light source and a first light detector, and a second device that has a second light source and a second light detector. The first and second devices are configured to turn on and off the first and second light sources periodically based on first and second control signals, respectively. The first and second light sources are configured not to emit light simultaneously. The first and second light sources emit light in wavelength ranges that overlap. The optical detection system further has the characteristic that when the first light source is turned on, a radiant power delivered to the second light detector from the first light source is at least 25 percent of a radiant power delivered to the first light detector from the first light source.

Abstract: In a method for applying a structure such as a marking and/or inscription to at least one element with a marking system, such as a laser system, the at least one element is arranged relative to a shaft, the method including: a) arranging the shaft or the shaft with the element arranged relative to the shaft in the marking system; b) determining a spatial position and/or a centre of rotation of the shaft in relation to a reference point, preferably the origin, of the marking system; and c) applying a structure to the element.

Abstract: An optical encoder of the present invention includes a light-receiving element unit 5, moving slit 2 and fixed slit 3. The light-receiving element unit 5 includes a pattern 5B for detecting infiltration of liquid.

Abstract: Disclosed is a sensor enabling positioning of a flexible element subject to applied forces. The sensor includes at least two spatially separated light permeable tubes, each having first and second ends arranged on respective first and second frame portions of the flexible element. At least one of the first or second ends of at least one light permeable tube are attached to a corresponding first frame portion by a joining unit. Each of the at least two spatially separated light permeable tubes includes at least one light detecting device, connectable to a processing unit, and arranged at a light detecting position of a corresponding light permeable tube to detect light from at least one light emitting device through the corresponding light permeable tube and transferring information including information relating to the detected light to the processing unit, enabling the processing unit to determine the bend of the light permeable tubes.

Abstract: A displacement sensor has a graded index multi-mode fiber with a length that is an odd multiple of a quarter pitch length of the graded index multi-mode fiber and a single-mode optical fiber fusion spliced to the first end of said graded index multi-mode fiber. A reflective mirror coating is applied to a planar facet on the second end of said graded index multi-mode fiber. A plurality of mechanical attachments are spaced along the graded index multi-mode fiber and single-mode optical fiber that mechanically deform said graded index multi-mode fiber, when any one of said plurality of mechanical attachments is displaced relative to any other one of said plurality of mechanical attachments.

Abstract: A container for use as a single-use component in a processing system for performing a biological, biochemical, or biotechnological process includes a wall surrounding a container interior space with a sensor arrangement integrated into the wall, where the sensor arrangement includes at least one sensor and one housing, and where the housing includes a housing wall, which surrounds a housing interior space containing the sensor and separates the housing interior space from the container interior space, characterized in that the housing wall comprises a wall region, which is designed as a predetermined breaking point.

Abstract: A dismounting device for a cable for dismounting the cable from a wall includes a force receiving member, a sleeve member, an adapter member and a securing element. The sleeve member is mechanically connected to the force receiving member. Each of the adapter member and the securing element is mechanically connected to the sleeve member. The cable is connected to the wall via the adapter member in a mechanically dismountable manner. Furthermore, dismounting of the cable occurs by the flow of force from the adapter member via the securing element onto the sleeve member and from the sleeve member onto the force receiving member.

Abstract: A structure of a scale graduation includes: a meter dial plate, a light-guiding body made of a translucent material in a dark color, a three-dimensional graduation disposed in a protruding manner on a front surface of the light-guiding body and made of a translucent material in the dark color disposed on the front side of the meter dial plate, and a light source that makes light enter the three-dimensional graduation through the light-guiding body. When the light source emits outgoing light, the three-dimensional graduation lights on in a light color different from the dark color.

Abstract: A flow amount measuring apparatus comprising: a rotating device, configured to rotate while material flows through the rotating device; a rotating bar, connected to the rotating device, configured to rotate corresponding to rotating of the rotating device; a feature acquiring device, configured to detect at least one feature of the rotating bar; and a computing unit, configured to compute a number for full rotations for the rotating bar based on the feature of the rotating bar, and configured to compute a flow amount for the material flows through the rotating device based on the number for full rotations.

Abstract: An ultrasound measuring apparatus for measuring the flow rate of a fluid in a conduit having two measurement systems is provided that each have at least one pair of ultrasound transducers that span a measurement path between them and that each have a control unit to determine transit times from ultrasound transmitted and received with and against the flow. In this respect, the control units are each configured to fix measurement times for a transit time determination on a measurement path autonomously and independently of one another in accordance with a rule that produces a respective different sequence of the measurement times in both measurement systems.

Abstract: Apparatus and methods for velocity scanning in, e.g., bodies of water. In one embodiment, a scanned one-dimensional transducer array Doppler sonar arrangement is used to remotely measure both vertical and horizontal profiles of a river or channel along-stream water velocities within a cross-section of the river/channel from a single side-mounted sonar.

Abstract: A connection terminal is on a flange of a thermal flow meter. A terminal connection part has a first and a second bent part. The first bent part is bent from a first direction to a second direction. The second bent part has is bent from the first bent part to a third direction. The first and second bent parts are formed such that when connection pin parts of a plurality of the connection terminals and terminal connection parts of the plurality of connection terminals are projected onto a first imaginary plane, an imaginary line L extending along a first direction passing through the projection areas of each of the terminal connection parts of the plurality of connection terminals passes between the projection areas of the connection pin parts from among the connection pin parts of the plurality of connection terminals, that are positioned on both sides.

Abstract: A method of manufacturing a Coriolis mass flowmeter from a polymeric material is described, in which a dynamically responsive manifold is fabricated from the same material as the flow sensor's flow-sensitive elements. The flowmeter is free of mechanical joints and adhesives. The manifold and flow-sensitive elements therefore do not slip or change their location relative one another, nor are they subject to differing degrees of thermal expansion that would otherwise undermine integrity, reliability, and/or accuracy of the boundary condition at the ends of the vibrating flow-sensitive elements.

Abstract: A fluid flow meter is described, that includes intermeshing gears that may rotate synchronously. The fluid flow meter may produce a pulsed output that can be normalized to suitable values according to a method of normalizing input pulses generated in response to the rotation of gears. A volume counter can be incremented by an amount equal to a volume per input pulse each time an input pulse is generated. When the volume counter exceeds a first reference volume, a normalized output pulse can be generated until the volume counter exceeds a second reference volume.

Abstract: An improved modulated particulate metering system is provided. The system includes a plurality of particulate storage areas, each having a separate type of particulate. The system can include varied configurations of a plurality of cartridges in communication with one of the particulate storage containers. The system can further include varied configurations of a plurality of gearboxes operably connected to the cartridges. The gearboxes can be adapted to be inverted and operably controlled by one or more drive shafts. The system can still further include varied configurations of a plurality of particulate accelerators in fluid communication with an air flow path having one inlet. The system permits a user to efficiently alternate between desired configurations based on the needs of the application.

Abstract: Provided is a container, which comprises a container body and a cover and further comprises a variable-pressure component, a metering channel, a liquid extraction channel and an outflow channel. The head of the metering channel is in communication with the variable-pressure component, and the tail thereof is in communication with the outflow channel and the liquid extraction channel. A valve, which is opened when the variable-pressure component is pressurized and is closed when the variable-pressure component is depressurized, is provided between the metering channel and the outflow channel. A valve, which is opened when the variable-pressure component is depressurized and is closed when the variable-pressure component is pressurized, is provided between the metering channel and the liquid extraction channel or within the liquid extraction channel. The metering channel, the liquid extraction channel and the outflow channel are fixed to the cover.

Abstract: Provided is a self-metering container, an initial positioning device thereof and an initial positioning method. The container comprises a container body, a variable pressure component, a metering channel and an outflow channel. When the variable pressure component is depressurized, contents in the container body enter the metering channel; and when the variable pressure component is pressurized, the contents in the metering channel flow outwards via the outflow channel. The container further comprises an initial positioning device. The initial positioning device comprises a backflow cavity, a backflow channel and a component capable of closing the backflow channel. The backflow cavity is in communication with the variable pressure component and the initial end of the metering channel. The initial end of the metering channel is higher than the bottom of the backflow cavity. The backflow channel is in communication with the bottom of the backflow cavity and the container body.

Abstract: Sensing level of submerged solids. At least some of the example embodiments are methods including: inserting a level sensing apparatus through an aperture at a top of a reservoir such that a bottom end of an inner tube abuts an upper surface of the submerged solids in the reservoir; utilizing the submerged solids such that the upper surface of the submerged solids recedes and the level sensing apparatus moves downward with the receding upper surface of the submerged solids; constraining downward movement of an outer tube when the upper surface of the submerged solids reaches a predetermined low level; and as the upper surface of the submerged solids continues to recede, sensing relative movement of the outer tube and an inner tube as an indication that the upper surface of the submerged solids is below the predetermined low level.

Abstract: A fill level measurement device for determining a topology of a filling material surface in a container including an antenna apparatus, a receiver and control circuitry. An emission angle of the antenna apparatus and a spatial position of the antenna apparatus relative to the filling material surface is settable by the control circuitry. A resultant emission direction of the fill level measurement device is changeable by the control circuitry by controlling a position of the antenna apparatus and by controlling an emission and/or receiving angle of the antenna apparatus.

Abstract: A system and a method for measuring a signal propagation speed in a liquid contained in a vessel or in a gaseous medium contained in the same vessel above the surface of the liquid are proposed. A transmitter transmits a first signal in a first direction which is at an acute or right angle to a first reflective surface, wherein the first reflective surface reflects the first signal so that it travels in a second direction is received by a first acoustic or electromagnetic receiver. The transmitter transmits a second signal in a predetermined third direction which is at an acute angle to the first direction, where the first or a second reflective surface reflects the second signal so that it travels in a predetermined and angular fourth direction with respect to the first or second reflective surface and is received by the first or a second acoustic or electromagnetic receiver.

Abstract: A portable fluid monitoring controller tester system for fluid monitoring equipment includes a control panel, electrical interfaces, and associated circuitry for simulating the fluid overfill sensors and other features of a trailer. The tester is a self-contained device that meets or exceeds various safety standards applicable to operating in an explosive environment. The tester may be powered, at least partially, by the fluid monitoring controller to which it is connected or from another power source, such as a battery. The tester has intrinsically safe outputs, and is configured to simulate different types of sensor systems found in fuel tanker trailers, including 2-Wire Optical, 5-Wire Optical, and Thermistor sensors. The tester is further configured to simulate ground circuits and the truck identification module (T.I.M.) of the fuel tanker trailer. The tester includes an enclosure that is impact and temperature resilient, and provides protection against windblown dust, rain and splashing water.

Abstract: A dynamic yield monitor system includes a plurality of instruments to measure harvested crop characteristics while a crop is in-flow within a harvester elevator. The system includes a volume instrument that measures a harvested crop volume from the in-flow harvested crop within the harvester elevator, and a weight instrument that measures a harvested crop weight from the in-flow harvested crop within the harvester elevator. Optionally, the system includes other instruments including a moisture and temperature instrument. A receiver and processing node communicates with the instrument. The receiver and processing determines variable harvested crop test weight based on at least the measured harvested crop volume and measured harvested crop weight of the in-flow crop. The receiver and processing node further determines a variable yield of the harvested crop based on the measured harvested crop volume, the measured harvested crop weight, and the variable harvested crop test weight.

Abstract: A device for weighing aircraft includes a weighing platform configured to receive a undercarriage leg of the aircraft and to generate weighing signals, a first calculation unit configured to calculate weighing information from the weighing signals generated by the weighing platform, a communication unit configured to transmit to a central device and to receive signals including at least one signal representing the weighing information calculated by the calculation unit, and a ground rolling unit configured to move the weighing platform over a surface.

Abstract: A person support apparatus, such as a bed, stretcher, recliner, cot, or the like, includes a frame, a plurality of load cells, a support surface supported by the load cells, a detection circuit, and a controller. The controller determines if any of the load cells are in an error state based upon information from the detection circuit. If the load cells include memory having calibration data stored therein, the controller communicates with the memory and uses the calibration data to determine an amount of weight supported on the surface. The detection circuit may include one or more Wheatstone bridges wherein the controller monitors voltages between midpoints of the Wheatstone bridges. The load cells may include an activation lead that is monitored by the detection circuit and a sensor lead that is used by the controller to determine an amount of weight supported on the patient support apparatus.

Abstract: A scale system is provided. The scale system includes multiple scale portions which may be separated to weigh an item that may have multiple feet or wheels, such as luggage. Each scale portion is configured as a pedestal that may wirelessly communicate with a computing device. The computing device receives a signal input from each portion, calculates the total weight based on the signal inputs, and presents this information to a user.

Abstract: A method for analyzing the condition of a machine, and an apparatus for analyzing the condition of a machine are described.

Abstract: A frequency-sweep experimental method for predicting noise of a power capacitor, comprises steps of: (1) loading the capacitor with a sine voltage excitation with a loading frequency value of ½ to 50 times of a power frequency in sequence, at an increase of half of the power frequency for each time, and measuring vibration velocity at various points on a case of the capacitor; (2) under each loading frequency, dividing vibration velocity by a square of each voltage applied; (3) calculating frequency spectrum of a square of the voltage of the capacitor according to the voltage and a current of the capacitor; (4) multiplying the frequency spectrum of the square of the voltage of the capacitor by the electromechanical vibration frequency response function value of the capacitor to obtain a vibration velocity spectrum of the case of the capacitor; (5) calculating acoustical power of the noise.