Present and future state of the art in guidance computer memories
Magnetic core, destructive and nondestructive readout memories, plated wire film, ferrites, and other component characteristics of guidance computer main memories
FERRITE↗
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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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Optics used to measure torque at high rotational speeds
In measuring torque transmitted by a high speed rotation shaft, an apparatus has been devised which includes a shaft, an optical system and readout servomechanism. This highly accurate method uses only optical contact with moving part and is statically calibrated.
Krsek, A., Jr.↗
Low-cost tape system measures velocity of acceleration
By affixing perforated magnetic recording tape to the falling end of a body, acceleration and velocity were measured. The measurement was made by allowing the tape to pass between a light source and a photoelectric sensor. Data was obtained from a readout device.
Hartenstein, R.↗
DATA STORAGE FOR METEOROLOGICAL SATELLITES
Tape recorders for nimbus satellite - electronic and magnetic systems, control of record & readout
ELECTRONIC RECORDING INSTRUMENT↗
System measures angular displacement without contact
Optic system coupled to an electronic detection and measuring system converts angular movement of reflected light to a direct readout, without any direct contact with the object.
Davis, W. T.↗
Interferometer combines laser light source and digital counting system
Measurement of small linear displacements in digital readouts with extreme accuracy and sensitivity is achieved by an interferometer. The instrument combines a digital electro-optical fringe-counting system and a laser light source.
Source record↗
Electrometer preamplifier has drift correction feedback
Negative feedback circuit corrects output drift in an electrometer. The negative feedback is used in the no signal state to maintain the output level at zero reference. Drift voltage storage in the signal on state is also used to provide a drift-free readout.
Labarthe, L. C.↗
Electronic ohmmeter provides direct digital output
Self-balancing wheatstone bridge acts as all-electronic digital readout ohmmeter.
Semyan, J.↗
Nonlinear feedback reduces analog-to-digital converter error
Nonlinear analog-to-digital converter measures the analog input level and continuously adjusts the digital readout scale sensitivity to effectively increase the accuracy. It is able to acquire more accurate low-level data.
Munoz, R. M.↗
Direct force-measuring transducer used in blood pressure research
Direct force measuring transducer acts as an arterial tonometer, gives a direct readout to instrumentation, and is unaffected by ambient noise. It uses a semiconductor strain gage which is deflected by pressure pulses in the artery. The deflection changes the resistance of the gage and alters the voltage reading on the associated instrumentation.
Eige, J. J.↗
A reliable very low power plated-wire spacecraft memory.
Low power thin film plated-wire memory unit with nondestructive readout for spacecraft
MEMORY STORAGE UNIT↗
Fatigue cracks detected and measured without test interruption
Ultrasonic flaw detector records cracks in materials undergoing fatigue tests, without interfering with test progress. The detector contains modified transducers clamped to the specimens, and an oscillograph readout.
Freche, J. C.↗
Solid state thermostat has integral probe and circuitry
Compact, reliable thermostat provides a temperature readout signal and a continuous temperature-control output for temperature monitoring by automatic checkout equipment or telemetry systems. It employs a solid state circuit in a housing rigidly attached to a thermistor probe.
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Solvent residue content measured by light scattering technique
Photometric analyzer measures NVR /nonvolatile residue/ in trichloroethylene and other organic solvents. The analyzer converts the liquid solvent to aerosol and passes it between an optically focused light beam and a photodetector that is connected to standard amplifying and readout equipment.
Salkowski, M. J.↗
Sniffer used as portable hydrogen leak detector
Sniffer type portable monitor detects hydrogen in air, oxygen, nitrogen, or helium. It indicates the presence of hydrogen in contact with activated palladium black by a change in color of a thermochromic paint, and indicates the quantity of hydrogen by a sensor probe and continuous readout.
Dayan, V. H.↗
Spiral spring/strain gage combination accurately measures shock induced deflection
Spiral springs equipped with strain gages which are hard-wired to readout instrumentation, measure deflection between two relatively inaccessible surfaces in a drop test that causes them to close to near flatness. This technique has been successfully used on Apollo drop tests to measure deflection between aft bulkhead and heatshield.
Berven, B. R.↗
Nondestructive test method accurately sorts mixed bolts
Neutron activation analysis method sorts copper plated steel bolts from nickel plated steel bolts. Copper and nickel plated steel bolt specimens of the same configuration are irradiated with thermal neutrons in a test reactor for a short time. After thermal neutron irradiation, the bolts are analyzed using scintillation energy readout equipment.
Dezeih, C. J.↗
Developmental instrument supplies accurate attitude and attitude-rate data
Three orthogonal-plane projection provides accuracy of readout of both attitude and attitude-rate information in an easily interpreted, uncluttered arrangement where blind navigation of a moving body is involved. The longitudinal length of the projection is constant, and independent of the pitch and roll attitudes of the moving body.
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