Abstract: A rolling ultrasonic scanner comprises a member having an inspection surface for rolling across the surface of an object under test. A plurality of ultrasonic transducers are disposed within the member in a formation such that they are each aimed at a common point that is coincident with the surface of the object.

Abstract: A sensor for a vehicle according to an exemplary embodiment of the present invention includes: a processor including first to sixth pins; first to third input pins connected with a connector; and an exchange circuit including first to third pins connected with the processor and the first to third input pins, and fourth to sixth pins connected with the processor, and a vehicle according to another exemplary embodiment of the present invention includes: a plurality of sensors for a vehicle, each of which includes: a processor including first to sixth pins; first to third input pins connected with a connector; and an exchange circuit including first to third pins connected with the processor and the first to third input pins, and fourth to sixth pins connected with the processor; and an electronic control unit (ECU) connected with the plurality of sensors for a vehicle by a bus topology method.

Abstract: An apparatus and method for investigating and analyzing early shaped charge liner collapse and liner material, wherein such method uses material from an actual liner, in order to collect data on the explosive event and its impact on the material.

Abstract: There is a testing device for testing a sensor. The testing device includes a rotating mechanism; a first rotating plate connected to the rotating mechanism so that the first rotating plate rotates around an orbital axis (Z1); a second plate rotatably attached to the first rotating plate at a rotating point, the second plate having a rotational axis (Z2) offset from the orbital axis (Z1) by a predetermined distance R; and a gripping mechanism attached to the second plate and configured to receive and fix the sensor relative to the second plate. The second plate follows a circular trajectory with constant attitude around the orbital axis (Z1).

Abstract: A drive loop circuit for a MEMS resonator. The circuit comprises a closed loop circuit to detect and amplify a signal of the MEMS resonator, a phase shifting circuit to phase shift the detected and amplified signal, and a feedback circuit to feed the detected, amplified and phase shifted signal as a feedback signal back to the MEMS resonator. The phase shifting circuit can include a low pass filter of at least 2nd order.

Abstract: A MEMS device comprises a substrate, a proof mass spaced apart from a surface of the substrate, and an over-travel stop structure. The over-travel stop structure includes a lateral stop structure and a cap coupled to the lateral stop structure. The MEMS device is fabricated to include relatively small gap sections and relatively large gap regions separating the lateral stop structure from the proof mass. The larger gap regions are covered by the cap and the smaller gap sections are exposed from the gap. During fabrication, removal of particles from the smaller gap sections is facilitated by their exposure from the cap and removal of particles from the larger gap regions underlying the cap is facilitated by their larger size. The lateral stop structure may be cross-shaped to limit deflection of the proof mass along two in-plane axes. The cap limits deflection of the proof mass along an out-of-plane axis.

Abstract: A calibration control device for being coupled to a measuring device such as a caliper, micrometer, or gauge is provided. The calibration control device includes a circuit portion and couples to a coupling feature on the measuring device. A calibration limit portion defines a parameter limit as related to a usage limit for which the measuring device is certified as calibrated. A controller operates a host-side data connection portion of the calibration control device to output measuring data in a first mode when the usage limit is not exceeded, and operates the calibration control device to perform a calibration limit function when the usage limit is exceeded. The calibration limit function may include stopping the output of the measuring data through the host-side data connection or providing an out-of-calibration warning to the host, or the like.

Abstract: A laminar air flow development device for use with stationary web material testing equipment is disclosed. The laminar air flow development device has a machine direction, a cross-machine direction orthogonal thereto, and a Z-direction orthogonal to both the machine and cross-machine directions. The stationary web material testing equipment has a first web material support having a Z-direction thickness, D. The device has first and second surfaces contactingly and matingly engaged to form an airfoil having a machine direction length, L, a cross-machine direction width, a leading edge, and a trailing end. The airfoil has a chord disposed between the first and second surfaces. The trailing end has a width equal to the Z-direction thickness, D. The device has a ratio of L/D ranging from about 1 to about 70 and provides machine direction laminar air flow to at least one surface of the first web material support.

Abstract: An inertial sensor comprising a frame to which at least two seismic bodies are connected by resilient means so as to be movable in a suspension plane, and transducers to keep the seismic bodies vibrating and to determine a relative movement of the seismic bodies relative to one another, characterized in that the seismic bodies have a single shape and a single mass, and in that the seismic bodies comprise interlocking parts such that the seismic bodies are nested inside one another while being movable in the suspension plane relative to the other of the seismic bodies, with the seismic bodies having centers of gravity that coincide with one another. A method for manufacturing such a sensor.

Abstract: A flexible storage container may have a first footprint when empty, and retracts to a second footprint when filled with a substance. A load sensing apparatus used for determining the volume of the substance in the flexible storage container can include a first set of load-sensitive sensors arranged in at least a region of the first footprint external to the second footprint, and a second set of load-sensitive sensors arranged within the second footprint. The sensor data from the load-sensitive sensors can be used to create a pressure level profile, and the volume of the substance contained in the flexible storage container can be calculated from the pressure level profile.

Abstract: Systems and methods are disclosed herein for determining rotation. A gyroscope includes a drive frame and a base, the drive frame springedly coupled to the base. The gyroscope includes a drive structure configured for causing a drive frame to oscillate along a first axis. The gyroscope includes a sense mass springedly coupled to the drive frame. The gyroscope includes a sense mass sense structure configured for measuring a displacement of the sense mass along a second axis orthogonal to the first axis. The gyroscope includes measurement circuitry configured for determining a velocity of the drive frame, extracting a Coriolis component from the measured displacement, and determining, based on the determined velocity and extracted Coriolis component, a rotation rate of the gyroscope.

Abstract: A method of using a dual-port measurement system to measure acoustic impedance is used to measure an acoustic impedance Z of a tested object. The tested object includes an input end and an output end opposite to the input end. The dual-port measurement system comprises a first impedance tube and a second impedance tube. The first impedance tube includes a first inlet where a plane wave of a sound source is input, and a first outlet connected with the input end. The second impedance tube includes a second inlet connected with the output end, and a second outlet where the plane wave is output. The method uses the dual-port measurement system and a two-boundary method to obtain the acoustic impedances Z, whereby the dual-port measurement system is conveniently applied to various fields, such as the design of earphones, muffler tubes, sound absorption materials, and artificial ears.

Abstract: A ring gyroscope structure with central spring structure that prefers prefers 2?-modes and makes them low in frequency. The flexing resonance modes that tend to couple to external mechanical excitation are clearly higher that the 2?-modes. The described structure is thus very robust against external mechanical shocks and vibrations.

Abstract: A sensor controller is applied to a particulate matter detection sensor that includes an attachment portion to which conductive particulate matter contained in gas is attached, and a pair of opposed electrodes spaced from each other at the attachment portion. The particulate matter detection sensor is adapted to output a detection signal corresponding to a resistance between the pair of opposed electrodes, and the sensor controller is adapted to calculate an amount of attached particulate matter based on a sensor detection value from the particulate matter detection sensor. The sensor controller includes a heater for heating the attachment portion so as to burn and remove the particulate matter attached to the attachment portion, and an abnormality diagnosis portion for obtaining the sensor detection value during a heating of the heater and for performing diagnosis of abnormality of the particulate matter detection sensor based on the obtained sensor detection value.

Abstract: The present disclosure relates to the fabrication of electrical components and, in particular to the use of a reconfigurable substrate to which a flexible circuit may be affixed. In certain embodiments, the reconfigurable substrate may be moved between different configurations, certain of which are suitable for fabrication and certain of which are suitable for operation.

Abstract: A micromechanical sensor device, having a first unhoused sensor unit, and at least one second unhoused sensor unit, the sensor units being functionally connected to one another, the sensor units being essentially vertically configured one over the other so that a sensor unit having a larger footprint completely covers a sensor unit having a smaller footprint.

Abstract: Apparatus and a method for monitoring of a pipe inspection tool in a pipeline, the apparatus comprising at least one sensor carrier apparatus being locatable along and in close proximity to a pipeline, a plurality of acoustic sensors being locatable on the sensor carrier apparatus, a pipeline inspection tool which is moveable through the pipeline being detectable by means of the acoustic sensors, and the location of the pipeline inspection tool being able to be determined by means of the acoustic sensors.

Abstract: Methods and apparatus for sensing linear acceleration with a MEMS resonator mass, alone, or concurrently with sensing rate of rotation. A resonator mass, which may be a disk or a ring structure, is driven at a resonance frequency of one of the vibration modes of the resonator mass. The amplitude of vibration of that mode is sensed by a set of at least two drive-sense electrodes disposed at opposing positions across the resonator mass. A linear acceleration is derived based at least on a difference between signals of the opposing electrodes. Linear acceleration may be sensed in multiple orthogonal dimensions using multiple pairs of opposing electrodes. Rotation rate may be derived concurrently by sensing the energy coupled into an orthogonal mode of the resonator mass.

Abstract: Diaphragm 33 is provided on a top surface of silicon substrate 32, and plate unit 39 is fixed to the top surface of silicon substrate 32 so as to cover the movable electrode film with a gap. Plate unit 39 is made of an insulating material. Fixed electrode film 40 is formed on a bottom surface of plate unit 39, and diaphragm 33 and fixed electrode film 40 constitute a capacitor. In an area around plate unit 39, a whole outer peripheral edge of the top surface of silicon substrate 32 is exposed from plate unit 39. On the top surface of the substrate 32, insulating sheet 47 made of the insulating material is formed in a part of an area exposed from plate unit 39, and electrode pad 48 electrically connected to diaphragm 33 and electrode pad 49 electrically connected to fixed electrode film 40 are provided on a top surface of insulating sheet 47.

Abstract: A system for determining a material property at an interface between a first layer and a second layer includes a transmitter outputting electromagnetic radiation to the sample, a receiver receiving electromagnetic radiation that was reflected by or transmitted though the sample, and a data acquisition device. The data acquisition device digitizes the electromagnetic radiation to yield waveform data. The waveform data represents the radiation reflected by or transmitted though the sample. The material property to be determined is generally the adhesive strength between the first and second layers.