Results 231 to 240 of about 93,403 (291)
Some of the next articles are maybe not open access.
Composite Piezoelectric Sensors
Ferroelectrics, 1984A hydrophone is an underwater microphone or transducer used to detect underwater sound. The sensitivity of a hydrophone is determined by the voltage that is produced by a hydrostatic pressure wave. The hydrostatic voltage coefficient, gh, relates the electric field appearing across a transducer to the applied hydrostatic stress, and is therefore a ...
R. E. Newnham +3 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
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
Piezoelectric Biomaterials for Sensors and Actuators
Advanced Materials, 2018AbstractRecent advances in materials, manufacturing, biotechnology, and microelectromechanical systems (MEMS) have fostered many exciting biosensors and bioactuators that are based on biocompatible piezoelectric materials. These biodevices can be safely integrated with biological systems for applications such as sensing biological forces, stimulating ...
Meysam T. Chorsi +7 more
openaire +2 more sources
Piezoelectric Cell Growth Sensor
Nature Biotechnology, 1991We have developed a reusable piezoelectric sensor that enables rapid characterization of cell viability and response to cell-affecting agents. This is accomplished via a novel polymer transduction principle that involves reaction of a pH-sensitive amphoteric polymer with metabolically generated acid. Subsequent adhesion of the protonated polymer to the
R C, Ebersole, R P, Foss, M D, Ward
openaire +2 more sources
The Journal of the Acoustical Society of America, 1998
A piezoelectric medium provides an attractive technology for realizing a variety of sensors that exhibit high sensitivity, small size and portability, fast responses, ruggedness and robustness, excellent aging characteristics, high accuracy, and the capability to measure multiple quantities in a single sensor package.
openaire +1 more source
A piezoelectric medium provides an attractive technology for realizing a variety of sensors that exhibit high sensitivity, small size and portability, fast responses, ruggedness and robustness, excellent aging characteristics, high accuracy, and the capability to measure multiple quantities in a single sensor package.
openaire +1 more source
Piezoelectric Sorption Anesthetic Sensor
IEEE Transactions on Biomedical Engineering, 1981The piezoelectric sorption detection method is evaluated for use in construction of an inexpensive, rugged, compact, and fast sensor for measuring the concentration of inhalation anesthetics. 10 MHz quartz crystals were coated with various substances and their frequency shifts measured upon exposure to varying concentrations of halothane, enflurane ...
J B, Cooper +3 more
openaire +2 more sources