1.The working principle of the AE sensor is introduces,and theAE testingsystem of grooving sample fracture under cyclic load is set up.介绍了AE传感器的工作原理 ,建立了循环载荷条件下切槽试样断裂声发射检测系 2.AE testingtechnology, which is used more and more widely for solving the problems, e...
1.The sensors including integrated MEMS sensors,tire tread impedance sensors,ultrasonic sensors,electromagnetic sensors,wireless passivesurface acoustic wave sensors and virtual sensor were introduced,and their present development,and their working principles,advantages and disadvantages were described in detail....
The construction and working principle of an acoustic detector based on acousto-magnetic effect is introudced. The sensitivity of this detector is compared with that of a piezocrystal sensor. The relation between the value measured by this detector and the distance from the source is also ...
The sensing principle of the device was based on the acoustoelectric effect due to the electrical conductivity variation of the SnO2 film. The maximal response of the sensor (i.e., center frequency change) was 112.232 kHz when the sensor with a 275 nm thick SnO2 film was operated at 120 ...
4.4 Research status of SAW based gas sensor The SAW sensor has many industrial applications for physical and chemical sensing due to the wide span of working temperature from − 273 to 800 °C and working frequency from 100 kHz to in GHz range [157–159]. The first SAW device-bas...
Vibrations that originate from the instrument–tissue–interactions propagate naturally along the instrument and can be acquired at any surface location using a vibration sensor. Furthermore, the utilisation of these vibrations is plausible from a biological point of view because it mimics the function ...
One of the electrodes serves as a sensor providing the microphone output signal, while the other electrode is used as an actuator that can, with a DC bias voltage, mechanically pre-stress the diaphragm and thus modify the microphone sensitivity. Such an electrically controlled sensitivity has ...
声/振动信号检测是传感系统中一个非常重要的部分,声/振动传感器经历了压电陶瓷型,光纤干涉型,光纤F-P腔型,光纤光栅型等多种类型的传感器。 3) acoustic-vibration sensors system 声-振动传感器系统 1. The shock isolating principle has been used to design two packaging models of the acoustic sensor in the...
The working principle of the AE sensor is introduces,and the AE testing system of grooving sample fracture under cyclic load is set up. 介绍了AE传感器的工作原理 ,建立了循环载荷条件下切槽试样断裂声发射检测系 2. AE testing technology, which is used more and more widely for solving the proble...
(b) Overview of the most frequently used wave modes, the working principle, and measurable sensor responses. (c) Cross section of a SAW sensor with different biological substances on top of the guiding layer. (d) Overview of cell biological applications with selected examples from the past ...