Abstract: A shared mapping session includes a plurality of users including a first user of a first electronic device and a second user of a second electronic device. A method for implementing the shared mapping session includes initiating the shared mapping session and receiving, from the second electronic device via the shared mapping session, second point-of-interest (POI) information associated with the second user, the second POI information including a visual element to identify a second POI as an item of interest to the second user. The method further includes displaying a user interface which displays map information indicating the visual element and a location associated with the first user, at least the visual element being simultaneously viewable in the shared mapping session to the first user via the first electronic device and the second user via the second electronic device.

Abstract: Systems and methods useful in providing equivalent visual operation (EVO) for the flight crew of an aircraft independent of the actual outside weather and visibility conditions through the use of synthetic vision (SV) and enhanced vision (EV) technologies are described. The systems and methods described herein can contribute toward gaining an operational credit that can expand the operational capabilities of an aircraft. The systems and methods described herein can provide relatively simple and intuitive solutions for activating and operating such systems.

Abstract: Provided are an energy big data system and an operation management method associated with meter environment information. A method for managing meters according to an embodiment includes: collecting energy usage data from the meters; collecting environmental data of the meters; and predicting states of the meters, based on the collected environmental data. Accordingly, states of meters may be predicted based on collected environmental information and meter reading information of the meters, so that the meters may be efficiently operated and managed, and a new energy service may be provided through analysis of big data including meter reading information and meter installation environment information.

Abstract: An electromagnetic non-contact online meter counting and speed measurement method and device for a steel wire are provided. An axial excitation device and an internally pass-through magnetic-sensitive detector sensor are disposed sequentially at intervals in an advancing direction of a steel wire. When the axial excitation device is excited by a narrow pulse voltage, the internally pass-through magnetic-sensitive detection sensor detects remanence around the steel wire in real time. When a magnetic null point is detected, a control system sends a narrow pulse excitation trigger instruction to enable a next excitation and detection process, and increases a meter counting value by a value corresponding to one meter counting pitch. The excitation is performed cyclically until it is ended. It calibrates an error caused by diameter and material changes and vibration of a detected steel wire.

Abstract: A resolver includes excitation coils and a detection coil. One of the excitation coils and the detection coil includes a sine coil and a cosine coil that transmit AC signals having phases of the electrical angle different from each other by 90 degrees. Further, the other coil is provided with an annular magnetic pole group in which a plurality of magnetic poles is disposed adjacent to each other in the circumferential direction at a facing face at which the rotor and the stator face each other. The plurality of sine coils and the plurality of the cosine coils are alternately disposed adjacent to each other in the circumferential direction at the facing face. The circumferential intervals between the magnetic poles included in the excitation coils and the detection coil are identical.

Abstract: A position detection device, configured to detect a position of a shaft that moves forward and backward in an axial direction, is provided with an excitation coil that generates an alternating magnetic field; a target fixed to the shaft and interlinked with a magnetic flux of the alternating magnetic field; and a detection coil in which the magnetic flux of the alternating magnetic field is interlinked. The detection coil has a first portion and a second portion in which an induced voltage is generated when the magnetic flux of the alternating magnetic field is interlinked, and a connection portion connecting the first portion and the second portion. The first portion and the second portion respectively extend along a coil longitudinal direction parallel to the axial direction, and at least a portion of each is aligned perpendicular to the coil longitudinal direction.

Abstract: A system includes first precision rectifier operatively connected to receive high and low signals of a sine coil of a resolver and to output a first signaled condition and an exciter coil of the resolver. A second precision rectifier is operatively connected to receive high and low signals of a cosine coil of the resolver and to output a second signaled condition. A quadrant detection circuit operatively connected to receive high and low signals of the exciter coil of the resolver, wherein the quadrant detection circuit is operatively connected to receive high and low signals from the sine coil and from the cosine coil, and to output a signal indicative of quadrant position of the resolver.

Abstract: A sensor apparatus includes a sensor electrode provided on a base material; a shield electrode provided on the base material so as to surround an outer edge of the sensor electrode and configured to capacitively couple with the sensor electrode; a voltage circuit connected to the shield electrode and configured to output an AC voltage having a predetermined phase and a predetermined voltage; and a protection circuit including a first end part connected to a connection part between the voltage circuit and the shield electrode and a second end part connected to ground.

Abstract: An actuator apparatus includes an actuator rod with an interior cavity and a set of rod holes. Each rod hole of the set of rod holes extends through the actuator rod to the cavity where the set of rod holes are positioned along a line. The actuator apparatus includes a light assembly positioned to light the cavity. The actuator apparatus includes an actuator block with an opening sized to conform to an outer surface of the actuator rod and a light sensor positioned in the actuator block to sense light coming through a rod hole aligned with the light sensor. The actuator apparatus includes a verification module with a light modulator that modulates light of the light assembly to transmit a position signal, and a verification circuit that transmits a verification signal in response to the light sensor receiving the position signal.

Abstract: There is provided an optical encoding system including a photodiode array and a code disk opposite to each other. The photodiode array includes a detection photodiode group and a calibration photodiode group. If there is a position deviation between the photodiode array and the code disk, whether to utilize detection signals of the calibration photodiode group is determined according to phase shifts between detection signals outputted by the detection photodiode group so as to eliminate the phase shifts.

Abstract: A Rayleigh intensity pattern measurement device includes: a tunable-wavelength LD (1); an optical coupler; a reception unit which receives coherent light from the tunable-wavelength LD and the Rayleigh scattering light; and an RIP digital processing unit which receives an output signal from the reception unit by an A/D converter, calculates a cross-correlation coefficient from two different Rayleigh intensity pattern signals obtained from the Rayleigh scattering light, and stores a cross-correlation coefficient obtained from a result of comparison with a given threshold. If the compared cross-correlation coefficient is smaller than the threshold, the cross-correlation coefficient is calculated until becoming equal to or greater than the threshold, and Rayleigh frequency shift is calculated from the cross-correlation coefficient that has become equal to or greater than the threshold, whereby a strain distribution or a temperature distribution of a measurement target is measured.

Abstract: A universal fitting for in-line fluid measurement in a process application. The fitting includes an inlet and outlet port and also has a body with a fluid flow passage providing fluid communication between the ports. A sensor housing is provided that extends outwardly away from a wall of the body, wherein the housing is sized to receive a sensor assembly, which assembly measures at least one characteristic of the fluid. A base of each housing integrally formed with the wall and including a sensor seat for receiving a portion of the sensor assembly. A probe aperture receives a probe portion of the sensor assembly, each housing having the probe aperture disposed in the wall and extending from the fluid passage through its respective sensor seat.

Abstract: A method for calculating an infusion rate in a drip chamber includes: providing a housing that receives a fluid, the housing received the fluid at a distal end and expels the fluid at a proximal end, the housing includes a reference mark; receiving, at the proximal end of the housing, a flow controller rotatably coupled to the housing, the flow controller includes an aperture extending therethrough; rotating the flow controller relative to the housing such that the aperture prevents the fluid from traveling therethrough; and determining the infusion rate by measuring a time elapsed until the fluid reaches the reference mark in the housing.

Abstract: A flow resistance tube for a flow sensor is provided. The flow resistance tube has a first housing part and a second housing part and a bearing element arranged between the first housing part and the second housing part. The bearing element includes a first bearing half, a second bearing half and a diaphragm element. The diaphragm element is connected between the first bearing half and the second bearing half in a non-positive manner, in particular in a non-positive sealing manner, so that the diaphragm element can be pivoted relative to the first bearing half and the second bearing half. A corresponding flow sensor and a process for manufacturing the flow resistance tube are also provided. The first bearing half and the second bearing half are sealingly connected by a sealant.

Abstract: Properties of liquid flowing through a Venturi tube, operating characteristics of the Venturi tube, geometry of the Venturi tube, and correlation between Reynolds number and coefficient of discharge for the Venturi tube are used to determine a flow rate of liquid or liquid/liquid mixture in the Venturi tube. Determination of the Reynolds number is reiterated to increase the accuracy of the liquid flow rate measurement in the Venturi tube. The liquid flow rate in the Venturi tube is monitored to control the liquid flow.

Abstract: Embodiments of the invention provide a device and method of action for a device that abuts the outside of infusion or effusion tubing and uses thermal mass-flow techniques to determine if fluid is flowing or stopped within the tubing. The device includes a housing which carries a heater and temperature sensor arranged such that, when the housing is coupled to the tubing, the heater and temperature sensor are at opposite sides of the tubing wall, in facing relationship. They are for example approximately diametrically opposed, permitting the device to contact the tubing at only one point and so be very compact.

Abstract: A method for detecting bubbles or droplets of a first medium in a fluid second medium flowing through a measuring pipe includes: heating a first heating element and a second heating element, which are each arranged on the measuring pipe and at a distance from each other; simultaneously sensing a first ambient temperature at the first heating element by a first sensor and a second ambient temperature at the second heating element by a second sensor; determining a first variable of the first sensor corresponding to the first ambient temperature and a second variable of the second sensor corresponding to the second ambient temperature; forming a difference between the first variable and the second variable; and comparing an absolute value of the difference with a reference threshold value, wherein the presence of a bubble or droplet is detected when the absolute value at least briefly exceeds the reference threshold value.

Abstract: A system includes a pipe, a multiphase fluid, and a measurement unit. The multiphase fluid is disposed within the pipe. The measurement unit is connected to the pipe and includes a cylindrical structure, a first magnet, a second magnet, a first coil, and a second coil. The cylindrical structure is submersed in the multiphase fluid and has a first end and a second end. The first magnet is connected to the first end of the cylindrical structure, and the second magnet is connected to the second end of the cylindrical structure. The first coil is wound around the outer circumferential surface of the pipe in a location corresponding to a location of the first magnet disposed within the orifice. The second coil is wound around the outer circumferential surface of the pipe in a location corresponding to a location of the second magnet disposed within the orifice.

Abstract: Ingredient dispensers for use in dispensing a measured amount of dry and/or liquid ingredient for a user are disclosed. In some embodiments, a dry ingredient dispenser is provided and may include a receptacle configured to contain a select amount of dry ingredient and a cap comprising an actuating portion and a measuring chamber portion. In some embodiments, a liquid ingredient dispenser is provided and may include a receptacle configured to contain a select amount of liquid ingredient and a dispensing portion which may be rotatable to dispense a measured amount of liquid ingredient for the user.

Abstract: A consumable level monitoring label apparatus, system and method for physical association with a content-filled consumable to allow for monitoring of a level of the content therein. The apparatus, system and method includes a plurality of labels, each individually manually removable from the label sheet and each comprising: a plurality of electrical conductors forming a sensing module, the sensing module having associated therewith firmware for converting signals associated with the electrical conductors and to an indication of the content level; a communications module for communicating the content level to at least a user display and over at least one network; and a power module for powering at least the sensing module and the communications module. A plurality of perforations are associated with each of the plurality of labels, wherein the plurality of perforations provides for variations in a size of each of the labels upon the manual removal.

Abstract: A hydration monitor comprising: a container (1) for holding and dispensing a hydration liquid: a volume sensor operable to derive data dependent on the current quantity of the hydration liquid in the container: a location sensor operable to derive data dependent on the current location of the container.

Abstract: Provided is a level meter with which a user can easily visually grasp a state of a level of an object from a long distance. The level meter includes a transmission unit that transmits a transmission wave toward an object to one end side in a longitudinal direction, a reception unit that receives a reflected wave of the transmission wave reflected by the object, and a state lamp having a plurality of state LEDs as light sources. A plurality of level ranges is set for the level of the object, and the lighting state of the state lamp changes according to the level range to which the level measured based on the transmission wave and the reflected wave belongs. The state lamp has a transmission window that diffuses the light emitted by the state LED in a direction intersecting the longitudinal direction.

Abstract: Provided is a level meter with which a user can easily visually grasp a state of a level of an object to be measured. The level meter includes a sensor unit, a housing, and a display unit. The sensor unit is disposed on one end side along the measurement axis and measures a level along the measurement axis. The housing is disposed on the other end side different from the one end side of the measurement axis. The display unit is provided in the housing, and displays the level measured by the sensor unit with respect to the color graph together with the color graph having a plurality of level ranges color-coded with different colors.

Abstract: Provided is a level meter having a high degree of freedom in an installation place. The level meter includes a sensor unit and a controller that communicates with the sensor unit and supplies power. The sensor unit includes a signal generation unit that generates a transmission signal, a transmission unit that transmits a radio wave according to the generated transmission signal, a reception unit that receives the radio wave reflected by the object and generates a reception signal according to the received radio wave, and a sensor processing unit that measures a level of the object based on at least the reception signal. The controller includes a display unit that performs display according to the measured level and an operation unit for setting a parameter related to measurement of the level.

Abstract: A multi-purpose child support assembly is provided and includes a frame assembly, a support component and a weighting module. The frame assembly includes a lower frame and an upper frame movable relative to the lower frame. The support component is mounted to the upper frame. The support component defines a supporting area for supporting a child placed on the support component. The weighting module is disposed on the frame assembly between the lower frame and the upper frame. Besides, a related child support assembly is also provided.

Abstract: A digital scale includes a lift apparatus configured to lift a top tray of the scale off weight sensors of the scale in order to prevent any potential damage and/or malfunction of the weight sensors due to excessive weight on the tray and/or due to a sudden drop of a heavy item onto the top tray. During a transaction at a terminal, an expected weight of a scanned item and/or a current weight of existing items on the tray is used to determine whether the tray is to be lifted off the sensors by the lift apparatus before the item is placed on the tray. Once the tray is lifted off the sensors and the scanned item is placed onto the top tray, the lift apparatus may slowly lower the tray back onto the weight sensors to enable a weight measurement of the item to be recorded.

Abstract: A distributed acoustic sensing (DAS) system may include an optical fiber, a phase-sensitive OTDR (?-OTDR) coupled to the optical fiber, and a processor cooperating with the ?-OTDR. The processor may be configured to generate a series of covariance matrices for DAS data from the ?-OTDR, and determine an acoustic event based upon comparing the series of covariance matrices with a corresponding Toeplitz matrix.

Abstract: A distributed acoustic sensing (DAS) system may include an optical fiber, a phase-sensitive OTDR (?-OTDR) coupled to the optical fiber, and a processor cooperating with the ?-OTDR. The processor may be configured to train a plurality of machine learning networks with DAS data from the ?-OTDR based upon different respective optimizers, select a trained machine learning network from among the plurality thereof based upon a game theoretic model, and generate an acoustic event report from the DAS data using the selected trained machine learning network.

Abstract: A distributed acoustic sensing (DAS) system may include an optical fiber, a phase-sensitive OTDR (?-OTDR) coupled to the optical fiber, and a processor cooperating with the ?-OTDR. The processor may be configured to generate a series of covariance matrices for DAS data from the ?-OTDR, determine acoustic events based upon the covariance matrices and a machine learning network, and generate an acoustic event report from the acoustic events.

Abstract: A monitoring system according to the present disclosure includes: an optical fiber; at least one memory configured to store instructions; and at least one processor configured to execute the instructions for transmitting pulsed light to the optical fiber and receiving an optical signal from the optical fiber, detecting, for each of a plurality of measurement points in the optical fiber, vibration intensity of vibration generated at the measurement point, based on the optical signal received from the optical fiber, and specifying a measurement point having vibration intensity equal to or higher than a predetermined threshold value from among the plurality of measurement points.

Abstract: Systems and methods may be used to reconstruct particle velocity wavefields from coupling-calibrated fiber-optic data that subsequently enables physically valid construction of the particle velocity wavefields for a hybrid sensor array including both fiber-optic and particle motion sensors. These systems and methods may be used in a variety of borehole geophysical applications, such as structure and reservoir imaging, impedance inversion, attenuation tomography, micro-seismic fracture imaging, focal mechanism analysis, and so on. The systems and methods may also be used in other applications such as geothermal and CO2 storage monitoring.

Abstract: An apparatus includes a first circuit that has a photodetector. The photodetector is reverse-biased by a reverse-bias voltage. A common mode voltage is added to the reverse-bias voltage to provide an offset to the photodetector voltage. A second circuit is coupled to the first circuit to provide the common mode voltage for the first circuit. A third circuit is coupled to the second circuit that includes a first voltage source and a second voltage source having opposite voltages equal to half of the reverse-bias voltage. Each one of the first voltage source and the second voltage source are coupled between separate input and output nodes of input and output ports of the third circuit. The first voltage source and the second voltage source provide the reverse-bias voltage to the first circuit to reverse-bias the photodetector. The third circuit provides a photodetector current at an output of the third circuit.

Abstract: A single photon number resolving detector provides photon number resolution. The detector includes a waveguide which receives photons for detection. Nanowires are located in proximity to the waveguide. Each of the nanowires is connected in series with an electrically resistive component to provide a branch. Plural branches are electrically connected in parallel with one another. A power source is connectable to deliver an electrical current to flow through the branches. A current monitor is connected to monitor a magnitude of the total electrical current in the plurality of branches. At an operating temperature of the detector the nanowires are superconducting and each branch has an electrical time constant which is small enough to cause latching of the branch to a latched state when the nanowire of the branch absorbs a photon from the waveguide. The number of photons detected can be determined from the magnitude of the current which depends on the number of branches in the latched state.

Abstract: An apparatus for detecting optical signals includes a photodetector. The photodetector is reverse-biased by a first voltage and a second voltage is added to the first voltage to provide an offset equal to the second voltage for the photodetector. A first circuit is coupled to the first circuit to provide the second voltage for the photodetector and a second circuit is coupled to the first circuit to provide the first voltage to the photodetector to reverse-bias the photodetector. The second circuit provides an output voltage proportional to a current of the photodetector at an output of the second circuit.

Abstract: A sensing device includes: a first substrate; a plurality of sensing units disposed on the first substrate, wherein the plurality of sensing units are used for sensing light with wavelengths within a wavelength range; and a second substrate disposed opposite to the first substrate and assembled to the first substrate, wherein the second substrate has an overlapping area overlapping with the plurality of sensing units in a normal direction of the first substrate, wherein the second substrate has an optical lens in the overlapping area, the optical lens includes a plurality of micro-structures, and a pitch between the plurality of micro-structures is less than or equal to a maximum wavelength value of the wavelength range.

Abstract: A bolometer includes a first electrode including a plurality of first extending portions having a plurality of first inner surfaces arranged in an arrangement direction, each of the first inner surfaces extending in an extension direction intersecting the arrangement direction, a second electrode facing the first electrode while being separated from the first electrode in the extension direction, and a sensor including a sensor film and a connection portion, in which the first electrode, the sensor film, and the second electrode are arranged in order in the extension direction, the connection portion extends in the extension direction, is provided between the plurality of first inner surfaces, and electrically connects the plurality of first inner surfaces and the sensor film, and the sensor includes carbon nanotubes.

Abstract: An electronic detection system includes an electronic device, a detector and a memory. The electronic device includes a circuit substrate, a plurality of photoelectric components, and a plurality of tunable current source circuits. Each photoelectric component has one or more peak emission wavelengths in response to a plurality of current values. The tunable current source circuits are disposed on the circuit substrate and electrically connected to the photoelectric components. The detector captures a feature value of a corresponding one of the photoelectric components. One or more lookup tables stored in the memory are based on the feature values and the current values of the photoelectric components. Each tunable current source circuit transmits an input current to a corresponding one of the photoelectric components in response to the lookup table(s) to perform a selected peak emission wavelength.

Abstract: A temperature sensor eliminates the necessity of removing a filler in order to check the condition of a thermosensitive body, while retaining the position of the thermosensitive body relative to a protective tube. The temperature sensor includes: a sensor element including the thermosensitive body, a protective layer made of glass and surrounding the thermosensitive body, and a lead wire electrically connected to the thermosensitive body; a protector including the protective tube in which the thermosensitive body is housed; and a retainer mechanically retaining a position of the thermosensitive body relative to the protective tube inside the protective tube.

Abstract: A temperature sensor assembly configured to determine a temperature of a surface of a vessel wall, comprising: a housing and a head element, wherein the head element is removably arranged on the housing; a first thermal rod comprising a temperature measurement sensor; and/or a second thermal rod, comprising a reference temperature sensor; wherein the first thermal rod and the second thermal rod are connected to the head element such that the first thermal rod and/or the second thermal rod are removable from the housing with the head element.

Abstract: Provided are a method for detecting a junction temperature of a switch tube, an electric motor controller, an electric motor control system, and a medium. The electric motor control system includes a three-phase inverter bridge for driving an electric motor to operate. The method includes determining a tube voltage drop and a turn-on current when a lower tube of at least one phase bridge arm in the three-phase inverter bridge is turned on; determining, according to the tube voltage drop and the turn-on current, a turn-on resistance when the lower tube of the at least one phase bridge arm is turned on; and determining, according to the turn-on resistance, a junction temperature of a lower tube of the at least one phase bridge arm.

Abstract: A pressure sensing unit comprises a membrane and two permanent magnets inside the cavity. One magnet is coupled to the membrane, and at least one magnet is free to oscillate with a rotational movement. At least one magnet is free to oscillate with a rotational movement. The oscillation takes place at a resonance frequency, which is a function of the sensed pressure, which pressure influences the spacing between the two permanent magnets. This oscillation frequency can be sensed remotely by measuring a magnetic field altered by the oscillation. The pressure sensing unit may be provided on a catheter or guidewire.

Abstract: The present invention relates to a measuring apparatus for measuring the temperature of a molten metal bath, comprising an optical device, a detecting means, a storing unit for the optical device, a rotatable support for the storing unit for the optical device, a moving means, a straightening means, a housing and a guiding system connected to the housing. The housing encloses the detecting means, the storing unit for the optical device, the rotatable support for the storing unit of the optical device, the moving means, and the straightening means. The moving means is adapted to feed and retract the optical device and comprises at least one motor for forward and backward driving the rotatable support for the storing unit for the optical device and a feeding means for feeding the optical device driven by at least one motor for forward and backward driving.

Abstract: A temperature-controlled calibration source for thermal imaging that provides for extremely inexpensive, mass producible, field deployable thermal calibration in specific, relatively low temperature ranges, and in particular temperatures near nominal human body temperature. A calibration source suitable for such applications may be implemented primarily as a suitable designed Printed Circuit Board (PCB), packaged in a thermally isolating housing and powered of commonly available power sources such as USB chargers.

Abstract: The present disclosure provides a temperature processing method and apparatus. The method includes: acquiring a current frame temperature value of each channel (S101); calculating an absolute value of a difference between the current frame temperature value and a previous frame temperature value of each channel to obtain a current frame temperature variation of each channel (S102); determining each first effective channel based on a first threshold and the current frame temperature variation of each channel (S103); determining each second effective channel based on multi-frame temperature values of each first effective channel (S104); and obtaining a current frame output temperature value based on the current frame temperature value of each second effective channel (S105). The apparatus is configured to perform the above method. The provided temperature processing method and apparatus improve the accuracy of temperature collection.

Abstract: A load sensor includes: an electrode; a dielectric body disposed on a surface of the electrode; an electrically-conductive elastic body that is disposed so as to be opposed to the dielectric body and of which a surface on the dielectric body side has a projection formed thereon; a substrate configured to support the electrically-conductive elastic body; and a configuration (projection) that suppresses movement of the electrically-conductive elastic body in a horizontal direction.

Abstract: The invention relates to the field of sensor technology, and in particular to an anti-overload sensor elastic body in form of an integral structure, in which the anti-overload auxiliary beam is provided with a wire cut groove running through along the length direction of the set axis, the cross section of the wire cut groove in the direction perpendicular to the set axis comprises two parallel boundary lines having a distance less than or equal to 0.18 mm therebetween; and in which the boundary line is one of a curve, a combined line of at least two straight lines, and a combined line of straight line and curve, and is in an axisymmetric or centrosymmetric pattern. In the invention, by providing three anti-overload auxiliary beams and wire cut grooves provided on them, the overload of the sensor in directions other than the set axis is effectively prevented, avoiding destructive damage and increasing the safety of the sensor.

Abstract: A sensor includes a substrate. A cavity is formed in the substrate. The substrate includes a membrane spaced from and facing a bottom surface of the cavity. A plurality of protruding portions are formed on one of the bottom surface of the cavity and an inner surface of the membrane.

Abstract: A sensor includes a substrate. A cavity is formed in the substrate. The substrate includes a membrane spaced from and facing a bottom surface of the cavity. A first depressed portion is formed in a central portion of the cavity as seen in a plan view.

Abstract: The present disclosure relates to a vacuum gauge assembly 100 for measuring gas pressure in a vacuum system. The assembly comprises a pressure sensor element 130, an orientation sensor 160 that can determine an orientation of the pressure sensing element 130, and a microcontroller 155 configured to determine a gas pressure using data received from both the pressure sensing element 130 and the orientation sensor 160. The present disclosure also relates to an associated method of correcting a gas pressure output value in a vacuum gauge assembly 100.

Abstract: A device including a sensor capable of carrying out dynamic force or mass measurements, for example a force sensor, including a magnetic device to generate a magnetic field according to at least one axis (XX?), a device to adjust and then hold a relative position, according to the axis (XX?), between a force sensor to be tested and the magnetic device, and a device to measure a signal representative of a tensile or compressive force applied to a contactless force sensor, directly using the magnetic device.