Simplified theory and transducer potentialities of the ''pinch effect'' in semiconductors
Simplified theory and transducer potentialities of pinch effect in semiconductors
SEARCH · Engineering Papers
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Simplified theory and transducer potentialities of pinch effect in semiconductors
Hysteresis of strain gage absolute pressure transducer
Electrical output transducer for measuring angular displacements does not introduce frictional contact between stationary and moving parts. It produces output voltages directly proportional to small rotary shaft displacements.
Tests were conducted with contrived inlet modulated sinusoidal pressure generator to study possible use in calibrating pressure sensors. Results indicate concept is feasible and applicable to transducer evaluation.
Miniature electromechanical tunnel diode transducer
High temperature transient pressure transducer tested for liquid metal systems
Sinusoidal pressure generator for calibration of pressure transducers
Automatic calibration system for strain-gage pressure transducers
Piezoelectric transducer for detecting and measuring micrometeoroids
Handbook of transducers for electronic measuring systems covering operating principles, design features, etc
Fixed mass fixed volume sinusoidal pressure generators for evaluation of transducers used in high pressure measurements
Direct, indirect, quasi and A to D digital transducers principles and features
Miniature electromechanical gallium antimonide tunnel diode transducer theory fabrication and performance
Electromechanical transducer to sense and record strain cycles, describing motion magnification principle, system and prototype evaluation
Transducer amplifies vibrations produced by piezoelectric drivers, creating greater amplitudes than were possible with direct drive devices. Drivers isolated from bearing surfaces result in bearings with high axial load capacity and stiffness, thus, wear on ceramic cylinders is reduced.
Transducer measures gas pressure profiles in high temperature, short duration, gas flows usually found in devices where pressure pulses may have durations of few microseconds to several milliseconds. Assembly includes fluid delay line, delay chamber, and flow restrictor for equalizing steady state pressure on diaphragm's sides
Simple integrated circuit located at transducer, enables use of single coaxial cable for both input and output connections. Circuit is sensitive to changes in RC time constant, has much improved sensitivity characteristics, and is unaffected by changes in cable capacitance effects.