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A piezoresistive pressure sensor interfacing circuit
IMTC/99. Proceedings of the 16th IEEE Instrumentation and Measurement Technology Conference (Cat. No.99CH36309), 2003A signal conditioning circuit with digital output for piezoresistive pressure sensors based on CMOS current mode building blocks is presented. The proposed circuit uses an instrumentation amplifier (IA) based on operational floating amplifiers (OFA), adapted for resistive sensors.
S. Vlassis, S. Siskos, T. Laopoulos
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Temperature compensation of piezoresistive pressure sensors
Sensors and Actuators A: Physical, 1992Abstract A major problem associated with piezoresistive pressure sensors is their cross sensitivity to temperature. The influence of temperature is manifested as a change in the span and offset of the sensor output. Moreover, in batch fabrication, minor process variations change the temperature characteristics for individual units.
Muhammad Akbar, Michael A. Shanblatt
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Research of MEMS piezoresistive pressure sensor
2010 International Conference on Future Information Technology and Management Engineering, 2010A series of theoretical analysis about double island-beam structure sensor is discussed in this paper. The position for sitting resistances on the diaphragm, the resistance values and the width of the resistances are analyzed in detail. Utilizing finite-element method (FEM) and simulation software ANSYS, static and dynamics analysis and computer ...
null Meng Yuan +4 more
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An interface circuit for piezoresistive pressure sensors
MELECON '98. 9th Mediterranean Electrotechnical Conference. Proceedings (Cat. No.98CH36056), 2002An interfacing circuit for piezoresistive pressure sensors based on CMOS second generation current conveyors is presented. Main advantages of the proposed circuit include the use of only two piezoresistors, low offset, high CMRR using CCII based instrumentation amplifier, temperature compensation and high linearity of the output frequency.
S. Vlassis, S. Siskos
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Piezoresistive pressure sensors for harsh environments
Optics and Precision Engineering, 2012To increase the stabilization and reliability of piezoresistive pressure sensors working in harsh environments with harsh acids,alkalis,corrosive salts,and other destructive substances such as electrostatic particles and damp,a novel piezoresistive pressure sensor was presented.The innovation of the sensor was that the sensing elements of the sensor ...
San, Hai-Sheng +4 more
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Self-compensating piezoresistive pressure sensor
Sensors and Actuators A: Physical, 1994Abstract A double-bridge method of pressure-sensor compensation has been tested. Three types of sensors are produced: standard with a flat, square, thin membrane and single Wheatstone bridge with four diffused piezoresistors in standard configuration and new sensors with ‘cut’ piezoresistors and a flat or bossed square membrane with two identical ...
J. Dziuban +4 more
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Modeling of Micromachined Piezoresistive Pressure Sensors
IETE Journal of Research, 2006This paper presents a model for piezoresistive pressure sensor. The model assumes a plane stress condition and it accounts for the finite stiffness of the step up support, which is represented by elastically restrained boundary condition. Variation of stress due to thermal mismatch between silicon and dielectrics and change in piezoresistance due to ...
Prem Sagar, S Kal
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A miniature piezoresistive catheter pressure sensor
Sensors and Actuators A: Physical, 1993Abstract This paper discusses some factors which affect the dimensional limits of miniature piezoresistive catheter pressure sensors, analyses the influence of silicon wafer thickness and piezoresistor area dimensions on the sensitivity of the sensor on the basis of the mechanism of anisotropic etching of (100) silicon and the stress-distribution ...
Wu Xian-ping +3 more
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Design of smart piezoresistive pressure sensor
5th Korea-Russia International Symposium on Science and Technology. Proceedings. KORUS 2001 (Cat. No.01EX478), 2002A silicon piezo-resistive smart pressure sensor is designed for implementation with a 0.6 /spl mu/m double poly double metal CMOS process. This smart sensor is composed of a diaphragm with piezoresistive resistors, Wheatstone bridge and circuitry composed of op-amp, A/D converter and UART.
null Hu-Min Jung +2 more
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A Piezoresistive Sensor for Measuring Tongue Pressure
Chinese Journal of Electronics, 2016Dysphagia is common after a cerebral vascular accident (or stroke), and it seriously affects the prognosis. Timely diagnosis in clinical, scientific assessment of dysphagia and correct treatment given to patients are essential. This study is aimed to develop a sensor for measuring tongue pressure during swallowing or other times, and to help doctors ...
Shaojie Wang +4 more
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