Results 271 to 280 of about 197,736 (320)

Highly Sensitive Flexible Capacitive Pressure Sensor Based on a Multicross-Linked Dual-Network Ionic Hydrogel for Blood Pressure Monitoring Applications.

ACS Applied Materials and Interfaces
Flexible capacitive pressure sensors based on ionic hydrogels (IHs) have garnered significant attention in the field of wearable technology. However, the vulnerability of traditional single-network hydrogels to mechanical damage and the complexity ...
Caixia Liu, Fei Ma, Qichang Sun, Qiusheng Hu, Wei Tong, Xu Guo, R. Hu, Ping Liu, Ying Huang, Xingtong Hao, Wenzhi Ma, Yugang Zhang   +11 more
semanticscholar   +1 more source

High-precision capacitative absolute pressure sensor

Sensors and Actuators, 1989
Abstract An advanced low-cost capacitive silicon absolute pressure sensor is described and experimental results are presented. The combination of a capacitive pressure sensor chip and a standard CMOS chip with an oscillator circuit has shown a resolution better than 10−4. The pressure sensor chip proves to be very stable, with a hysteresis and a long-
A. Jornod, F. Rudolf
openaire   +1 more source

A flexible highly sensitive capacitive pressure sensor

Sensors and Actuators A: Physical, 2021
Abstract Flexible pressure sensor has been increasingly recognized over the past several decades, but there is still a challenge to fabricate it with a superb sensitivity and large sensing range. Herein, a highly flexible, sensitive and capacitive pressure sensor based on a porous ionic membrane is developed.
Xiaofeng Yang, Si Chen, Yijun Shi, Zhiwei Fu, Bin Zhou   +4 more
openaire   +1 more source

An integrated miniature capacitive pressure sensor

Sensors and Actuators A: Physical, 1991
Abstract A newly designed capacitive pressure sensor which incorporates a CMOS IC on the same silicon chip has been developed. The sensor chip is 3.3 mm × 3.7 mm × 0.5 mm in size, and both the sensing capacitive element and the electronic circuit are hermetically sealed between the silicon substrate and the glass cover using a unique electrical ...
Takeshi Kudoh, Shuichi Shoji, Masayoshi Esashi   +2 more
openaire   +1 more source

A textile based capacitive pressure sensor

Proceedings of IEEE Sensors, 2003
This paper introduces an approach for decoding the pressure information exerted over a broad piece of fabric by means of capacitive sensing. The proposed sensor includes a distributed passive array of capacitors (i.e. an array where no active elements are involved), whose capacitance depends on the pressure exerted on the textile surface, and an ...
M. Sergio, N. Manaresi, M. Tartagni, R. Guerrieri, R. Canegallo   +4 more
openaire   +1 more source

Transient response of capacitive pressure sensors

Sensors and Actuators A: Physical, 1992
Abstract The responses of capacitive pressure sensors to step and impulse waveforms are computed for small deflections and low damping using the thin-plate theory. These sensors behave as second-order systems with one degree of freedom. From present and previous results, the expression of the transfer function is established.
P. Pons, G. Blasquez
openaire   +1 more source

Resilient bismuthene-graphene architecture for multifunctional energy storage and wearable ionic-type capacitive pressure sensor device.

Journal of Colloid and Interface Science, 2022
A facile resilient bismuthine-anchored graphene architecture is reported as multifunctional all-solid-state flexible supercapacitors and ionic-type capacitive sensor.
Ning Wei, Yan Li, Yuxi Tang, Yanhong Zhou, Ren-Min Ning, Menglin Tang, Shibin Lu, W. Zeng, Yi Xiong   +8 more
semanticscholar   +1 more source

CMOS MEMS capacitive absolute pressure sensor

Journal of Micromechanics and Microengineering, 2013
This paper presents the design, fabrication and characterization of a capacitive pressure sensor using a commercial 0.18??m CMOS (complementary metal?oxide?semiconductor) process and postprocess. The pressure sensor is capacitive and the structure is formed by an Al top electrode enclosed in a suspended SiO2?membrane, which acts as a movable electrode ...
M Narducci, L Yu-Chia, W Fang, J Tsai
openaire   +1 more source

Symmetric differential capacitive pressure sensor

Review of Scientific Instruments, 1993
Differential capacitive sensors are common to pressure gauges. Previous sensors of the bridge type have utilized only two variable (active) components, resulting in a half-bridge electrical equivalent circuit. There are numerous advantages of a symmetric full bridge, using four active components.
openaire   +1 more source

Electronic circuits for capacitive pressure sensors

Images of the Twenty-First Century. Proceedings of the Annual International Engineering in Medicine and Biology Society, 2003
Three different electronic circuits for characterizing the commercially available Orthoflex Hercules capacitive pressure sensors over the pressure range of 0-2 MPa are discussed. A portable microprocessor-based system is used to measure the pressure between the foot and the shoe.
A. Patel, J.G. Webster, W.J. Tompkins, J.J. Wertsch   +3 more
openaire   +1 more source