Results 241 to 250 of about 92,229 (292)
Some of the next articles are maybe not open access.
Piezoelectric Sensors and Sensor Materials
Journal of Electroceramics, 1998This paper reviews the current trends and historical development of piezoelectric sensors and sensor materials technology. It begins with a discussion of the bases of piezo- and ferroelectric activity, followed by an overview of the most commonly used piezoelectric ceramic: lead zirconate titanate (PZT).
James F. Tressler +2 more
openaire +1 more source
Biodegradable Piezoelectric Sensor
2019 IEEE 16th International Conference on Wearable and Implantable Body Sensor Networks (BSN), 2019Measuring vital physiological pressures is important for monitoring health status, preventing the buildup of dangerous internal forces in impaired organs, and enabling novel approaches of using mechanical stimulation for tissue regeneration. Pressure sensors are often required to be implanted and directly integrated with native soft biological systems.
Thanh Duc Nguyen, Eli J. Curry
openaire +1 more source
Piezoelectric acceleration sensor and piezoelectric acceleration sensor device
The Journal of the Acoustical Society of America, 1993ABSTRACT The invention relates to a piezoelectric acceleration sensor and to a piezoelectric acceleration device which use a film piezoelectric element. Specifically, the piezoelectric acceleration sensor and the piezoelectric acceleration sensor device generate relatively large outputs when acceleration occurs along the sensing axis, but ...
openaire +1 more source
The Journal of the Acoustical Society of America, 1983
A broadly tuned self resonant knock sensor includes a piezoelectric element mounted on a central mounting stud. The element includes a generally annular vibratable portion having a variable radial dimension so as to exhibit resonant vibrations at a plurality of relatively closely spaced resonant frequencies essentially spanning an engine determined ...
Yuchi P. Peng +2 more
openaire +1 more source
A broadly tuned self resonant knock sensor includes a piezoelectric element mounted on a central mounting stud. The element includes a generally annular vibratable portion having a variable radial dimension so as to exhibit resonant vibrations at a plurality of relatively closely spaced resonant frequencies essentially spanning an engine determined ...
Yuchi P. Peng +2 more
openaire +1 more source
Piezoelectric bimorph optical-fiber sensor
Applied Optics, 2004We propose and demonstrate a novel high-voltage optical-fiber sensor. This sensor consists of an emitting fiber, a receiving fiber, and a piezoelectric bimorph transducer. The emitting fiber is fixed in a base, whereas the receiving fiber is mounted on the free end of the piezoelectric bimorph transducer.
Sun, F. G. +3 more
openaire +2 more sources
Piezoelectric polyimide tactile sensors
Proceedings of the 15th Biennial University/Government/ Industry Microelectronics Symposium (Cat. No.03CH37488), 2004An important application of piezoelectric materials is for tactile sensing. For non-planar applications, polymer materials offer the potential to provide flexible tactile sensors conforming to a variety of surface geometries. We have demonstrated a fabrication process for fabricating MEMS tactile sensor structures using a novel high-temperature ...
G.M. Atkinson +5 more
openaire +1 more source
Piezoelectric dynamic pressure sensor
The 2010 IEEE International Conference on Information and Automation, 2010This paper presents a novel piezoelectric dynamic pressure sensor, it consists of sensing element and inner preamplifier. The piezoelectric unimorph was used as sensing element. The charge amplifier with high input impedance was used to decrease the impedance of the unimorph and amplify the sensing signal.
Likun Wang, Lei Qin, Li Li
openaire +1 more source
Flexible Composite Piezoelectric Sensors
IEEE 1984 Ultrasonics Symposium, 1984The piezoelectric properties of several different composites with 0-3 connectivity are reviewed. In these composites a piezoelectric ceramic powder such as PbZr1-,Tix03 (PZT), PbTi03 or Pbl-xBixTil-TFex03 is used as a filler in a polymer matrix. The values of hydrostatic voltage coefficient ih of these composites are higher than the corresponding ...
R.E. Newnham +3 more
openaire +1 more source
Vibrating piezoelectric sensors
Sensors and Actuators A: Physical, 1994Abstract This paper presents the original results obtained in the development of the vibrating piezoelectric sensors loaded with any medium, either solid, liquid or gas. The common feature of such a loading is its ability to vibrate synchronously with the piezoelectric resonator as a compound resonator. The paper introduces a new concept in vibrating
openaire +1 more source
Piezoelectric Resonant Temperature Sensor
Advanced Materials Research, 2014This paper describes a piezoelectric resonant tuning fork designed for temperature sensor. The sensor is based on a directly detection and analyses of relationship between frequency shift and temperature change. The main working components of quartz tuning fork temperature sensor are quartz tuning fork resonator (QTFR) and driving circuit, according to
Yao Yu, Jun Xu, Jing Ma, Hai Yan Chen
openaire +1 more source