Capacitance extensometers for microstrain measurements
Capacitance extensometers for microstrain measurements
EXTENSOMETER↗
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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.
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Methods for Obtaining Electron Density Profiles from Capacitive Ionospheric Rocket Probes Scientific Report No. 208
Obtaining electron density profiles from capacitive ionospheric rocket probes
ELECTRON DENSITY PROFILE↗
Capacitance extensometers for microstrain measurements.
Fielden proximity meter and wayne kerr electronic micrometer for detecting small capacitance changes for microstrain measurements
EXTENSOMETER↗
Solid-state switching used to speed up capacitive integrator
Capacitive integrator circuit using Silicon Controlled Switches /SCS/ insures output voltage linearly proportional to input pulse width. This circuit provides high input impedance and relatively low output impedance.
Newcomb, A. L., Jr.↗
Electrostatically driven dynamic capacitor employs capacitive feedback
Three-part signal electrode provides capacitive feedback to an oscillator driven dynamic capacitor in an electrometer circuit.
Lonborg, J. O.↗
Experiments on inductive and capacitive radiofrequency heating of a hydrogen plasma in a magnetic field
Inductive and capacitive radio frequency heating of hydrogen plasma in magnetic field
RADIO FREQUENCY HEATING↗
Capacitive system detects and locates fluid leaks
Electronic monitoring system automatically detects and locates minute leaks in seams of large fluid storage tanks and pipelines covered with thermal insulation. The system uses a capacitive tape-sensing element that is adhesively bonded over seams where fluid leaks are likely to occur.
Source record↗
Variable-capacitance tachometer eliminates troublesome magnetic fields
Dual variable-capacitance tachometer measures angular speed and sense of rotation without magnetic components. Thus it eliminates magnetic flux interference with associated instrumentation in an electromechanical system.
Source record↗
Miniature capacitive accelerometer is especially applicable to telemetry
Capacitive accelerometer design enables the construction of highly miniaturized instruments having full-scale ranges from 1 g to several hundred g. This accelerometer is applicable to telemetry and can be tailored to cover any of a large number of acceleration ranges and frequency responses.
Coon, G. W.↗
Miniature electrometer preamplifier effectively compensates for input capacitance
Negative capacitance preamplifier using a dual MOS /Metal Oxide Silicon/ transistor in conjunction with bipolar transistors is used with intracellular microelectrodes in recording bioelectric potentials. Applications would include use as a pickup plate video amplifier in storage tube tests and for pH and ionization chamber measurements.
Burrous, C. N.↗
Development of a prototype LH2 capacitance type mass flowmeter and readout Summary report
Capacitive mass flow meter with electronic readout for use with liquid hydrogen
READOUT↗
Capacitive pressure transducer system
Closed loop capacitive pressure transducer with extended frequency response for very low pressure measurements
Born, G. J.↗
Flight investigation of a capacitance-type meteoroid detector using an inflatable paraglider
Flight test of capacitance type meteoroid impact detector of aluminum polyethylene terephthalate using inflatable paraglider
Siviter, J. H., Jr.↗
The use of capacitance gauge sensors to make precision mechanical property measurements.
Capacitance gauge sensors for precision mechanical property measurements
Hartman, D. E.↗
Measurement of liquid and two-phase hydrogen densities with a capacitance density meter
Measurement of liquid and two phase hydrogen densities with capacitance density meter
Snyder, R. W.↗
Recovery rate and capacitance measurements on irradiated lithium-containing solar cells.
Recovery rate at room temperature in Li-doped p-n Si diodes and solar cells after 1 Mev electron irradiation, noting capacitance changes
Brucker, G. J.↗
Increased capacitance for VLF umbrella antennas using multiple-wire rib construction.
Capacitance and effective height for VLF umbrella antennas using multiple wire structural members to increase effective antenna surface area
Graf, E. R.↗
The effect of capacitive-screw tuners on waveguide loss.
Waveguide capacitive screw tuners effects on dissipative loss, discussing microwave measurements with copper screw tuners
Stelzried, C. T.↗