Abstract: An angular velocity sensor includes a substrate; a plurality of mass units which is disposed above the substrate; respective coupling units which couple the respective mass units (a first mass unit and a third mass unit, the third mass unit and a second mass unit, the second mass unit and a fourth mass unit, and a fourth mass unit and the first mass unit) adjacent to each other, among the plurality of mass units; and respective drive units which are disposed above the substrate and are connected to the respective coupling units, and the respective drive units drive the respective mass units (the first mass unit and the third mass unit, the third mass unit and the second mass unit, the second mass unit and the fourth mass unit, and the fourth mass unit and the first mass unit) adjacent to each other through the respective coupling units.

Abstract: A method for thermostat failure detection in an engine cooling system is provided. The engine cooling system includes a coolant pump and a thermostat for providing a coolant flow between an engine and a radiator. The method includes determining one or more engine parameters. Further, a pressure difference between a coolant pump inlet pressure and a coolant pump outlet pressure is determined corresponding to the one or more engine parameters. The thermostat failure is detected when the determined pressure difference is outside a predefined range of pressure change defined corresponding to the determined one or more engine parameters.

Abstract: In an embodiment, a miniaturize particulate matter detector includes a filter having a plurality of holes, and a concentration detector correspondingly disposed under the filter. The concentration detector has a detect area used for detecting a concentration of at least one miniaturize particulate matter. A manufacturing method of the filter is also provided.

Abstract: This present disclosure is directed to a method and apparatus for collecting small amounts, sub mg levels, of elemental sulfur (or other trace elements such as mercury) deposited from the ppm levels of elemental sulfur (or other trace elements such as mercury) contained in gases found in typical oil production environments or gas streams with anticipated sulfur deposition problems, as well as in industries other than oil and gas. An analytical chemistry technique for determining the amount of sulfur collected is used and from this result, the solubility of sulfur in a gas at a fixed temperature, pressure and gas composition can be calculated.

Abstract: A thermochromic efficiency indicator for indicating efficiency of a temperature affector, and methods of making and using such a thermochromic efficiency indicator, whereby the thermochromic efficiency indicator comprises: a substrate; and a first indicia coupled to the substrate, the first indicia comprising a first thermochromic compound capable of undergoing a first thermochromic compound color change; wherein the first thermochromic compound color change indicates the temperature affector is below a first predetermined efficiency threshold.

Abstract: An exhaust gas analyzing apparatus of a vehicle mounted type equipped with an analyzer that is configured to analyze components contained in exhaust gas includes a sampling line that is an exhaust gas flow path extending from an exhaust gas introduction terminal that is configured to introduce the exhaust gas from the outside to the analyzer; a pressure reduction source that is configured to reduce a pressure in the sampling line to a predetermined pressure; and a temperature-regulating mechanism that is configured to regulate a temperature of the exhaust gas flowing in the sampling line to be at least a first temperature. The first temperature is set to be a temperature equal to or higher than an evaporation temperature of moisture at the reduced predetermined pressure and lower than an evaporation temperature of moisture at one atmospheric pressure.

Abstract: An ultrasonic detector suitable for mounting in a position for surveying an area for a source of airborne ultrasound, which detector comprises a sensor for detecting an ultrasonic sound signal, characterized by a transducer configured to produce a broadband ultrasonic sound signal for reception by said sensor enabling said ultrasonic detector to perform a self-test.

Abstract: A pointer for an indicating device includes a conductor. The conductor includes a front portion, a rear portion, and a receiving portion. The rear portion extends from the front portion. The receiving portion extends from the rear portion. The receiving portion is configured to receive light and to conduct the light through the rear portion toward the front portion. The receiving portion has a cutout dented into the receiving portion.

Abstract: The present application discloses a multi-function alcohol tester, including a housing, where the housing is internally provided with an alcohol test module, the alcohol test module includes a PCB mainboard, and the PCB mainboard is provided thereon with an alcohol measurement sensor communicating outside the housing; and the housing is further internally detachably connected with a function module, and the alcohol test module and the function module are powered by a battery disposed in the housing. The present application has advantages as follows: the multi-function alcohol tester has many functions, has a function module that can be detached or replaced, and is easy to carry.

Abstract: A sensor includes a detector element, a connection terminal, and a separator. The contacting portion is in contact with a conductive member so as to overlap the conductive member in a thickness direction, which is a direction of thickness of the detector element between the principal surfaces. The separator includes an element accommodation space that accommodates a portion of an element contact portion and an element back portion, and a partition wall that separates the element accommodation space from a terminal accommodation space that accommodates the contacting portion and a portion of the conductive member and that is adjacent to the element accommodation space in the thickness direction. A frame main body is disposed in an element-side region, which is a region on an element-accommodation-space side in the thickness direction in a region obtained by extending the terminal accommodation space toward the front side in the axial direction.

Abstract: The present disclosure relates to a bird-scaring device. The bird-scaring device simulates a predatory bird in flight. The bird-scaring device is comprised of an upper body segment, a lower body segment, a middle body segment with a pair of wings, a positioning element, a positioning element mount and an upper fastening element and a lower fastening element for the slidable positioning of the bird-scaring device. The bird-scaring device may have unexpected and unpredictable motion as it slides between the upper and lower fastening element, sways with the positioning element and pivots on the positioning element mount. The wings may project laterally from the middle segment of the body and also may move in the wind to simulate the natural flying motion of a bird. In this way, the bird-scaring device may generate unpredictable, realistic predator bird motion to dispel pest birds.

Abstract: An athermal open-loop hung mass accelerometer configures the CTE of the sensor heads such that any growth by the body in response to a body temperature gradient along the longitudinal axis is offset by the growth of the sensor heads in the equal and opposite direction to null the effects of the temperature gradient. In many configurations, the sensor head CTE is strictly less than the body CTE and typically between 60-80% of the body CTE to null the effects of the predicted body temperature gradient.

Abstract: A detector arrangement to be scaled or adapted in a simple manner depending on the application includes n·m (n?2, m?2) thermal conductivity detectors that are each arranged in a mounting on a detector block having a high thermal conductivity, wherein each case m detector block is secured radially symmetrically and spaced apart from one another on a carrier having a central opening, forming a detector module, and n detector modules are located on a common axis by the central openings of the carriers.

Abstract: A device and method for measuring concentration of etchant, the device comprises a concentration measuring mechanism and an acid mist elimination mechanism connected with the concentration measuring mechanism, the acid mist elimination mechanism is configured to eliminate acid mist inside the concentration measuring mechanism, and the concentration measuring mechanism is configured to receive etchant in real time, measure absorbance of each kind of acid of the etchant in a non-acid mist environment, and calculate concentration of each kind of acid of the etchant according to the absorbance. It can overcome the interference of the acid mist on concentration measurement of the acid of the acid mixture etchant. In this way, the concentration of each kind of acid of the acid mixture etchant can be online measured rapidly and accurately, and the desiccative gas can be recycled, which achieves the effect of resource conservation.

Abstract: A sensor arrangement (10) includes a sensor (11) for a mechanical quantity or a thermal quantity, a processing circuit (12), which is connected at the input end to the sensor (11) and provides an output signal (SRF), which is processed for wireless transmission, and a cable (13), which is coupled to the processing circuit (12), to which the output signal (SRF) or a signal derived from the output signal (SRF) is supplied and which delivers a power supply to the processing circuit.

Abstract: A fluid sensor for sensing at least one characteristic of a fluid. The fluid sensor including a sensing area; a sensing element configured to sense a characteristic of a fluid located within the sensing area; and a shroud having a textured area. The shroud configured to allow a liquid portion of the fluid to enter and exit the sensing area, and substantially prohibit a gas portion of the fluid to enter the sensing area.

Abstract: A MEMS device includes: a substrate; a proof mass suspended over the substrate, the proof mass including at least one proof mass body and a proof mass frame connected to and accommodating the proof mass body, the proof mass frame including at least one self-test frame; and at least one self-test electrode inside the self-test frame, and connected to the substrate; wherein when a voltage difference is applied between the self-test electrode and the self-test frame, the proof mass is driven to have an in-plane movement, and wherein the self-test electrode and the self-test frame do not form a sensing capacitor in between.

Abstract: Improvements in an emergency inflatable signal locator is disclosed the emergency inflatable signal locator is a portable self-contained emergency inflatable illuminated signal location indicator generally provides a carrying case defining an interior volume carrying a container of compressed helium and an inflatable balloon having a reflective exterior surface and carrying a light source, the inflatable balloon connected to one end of a length of tether. The tether having a second end portion securely fastened to a reel that is securely interconnected to the interior of the carrying case allowing the inflated balloon to be retracted if necessary.

Abstract: A dial gauge assembly includes a single circuit board that supports light emitting diodes for both illuminating a pointer and backlighting a liquid crystal display. The dial gauge assembly controls illumination of the pointer by switching on and off a plurality of segments disposed within the LCD.

Abstract: A rocker device for a micromechanical Z-sensor, including two rocker arms which are mounted around a torsion spring and which are asymmetric relative to the torsion spring; the rocker arms having first perforations; at least one of the rocker arms having at least one opening, a diameter of the first perforations being configured in a defined manner to be smaller than a diameter of the opening; and a cavity for connecting the first perforations to the at least one opening being formed in at least one of the rocker arms.