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Test & Measurement

Briefs: Test & Measurement
Apparatus for Hot Impact Testing of Material Specimens

An apparatus for positioning and holding material specimens is a major subsystem of a system for impact testing of the specimens at temperatures up to 1,500 °C. This apparatus and the rest of...

Briefs: Test & Measurement
Instrument for Aircraft-Icing and Cloud-Physics Measurements

The figure shows a compact, rugged, simple sensor head that is part of an instrumentation system for making measurements to characterize the severity of aircraft-icing conditions and/or...

Briefs: Test & Measurement
Improved Apparatus for Testing Monoball Bearings

A desk-sized apparatus for testing monoball bearings and their lubricants offers advantages, relative to prior such apparatuses, of (1) a greater degree of automation and (2) capability of operation...

Briefs: Test & Measurement
Advances in Measurement of Skin Friction in Airflow

The surface interferometric skin-friction (SISF) measurement system is an instrument for determining the distribution of surface shear stress (skin friction) on a wind-tunnel model. The SISF...

Briefs: Test & Measurement
Simulator for Testing Spacecraft Separation Devices

A report describes the main features of a system for testing pyrotechnic and mechanical devices used to separate spacecraft and modules of spacecraft during flight. The system includes a...

Briefs: Test & Measurement
Apparatus for Hot Impact Testing of Material Specimens

An apparatus for positioning and holding material specimens is a major subsystem of a system for impact testing of the specimens at temperatures up to 1,500 °C. This apparatus and the rest of...

Briefs: Test & Measurement
Instrument for Aircraft-Icing and Cloud- Physics Measurements

The figure shows a compact, rugged, simple sensor head that is part of an instrumentation system for making measurements to characterize the severity of aircraft-icing conditions and/or...

Briefs: Test & Measurement
Improved Apparatus for Testing Monoball Bearings

A desk-sized apparatus for testing monoball bearings and their lubricants offers advantages, relative to prior such apparatuses, of (1) a greater degree of automation and (2) capability of operation...

Articles: Test & Measurement
30 Years of Test & Measurement

In celebration of the 30th Anniversary of NASA Tech Briefs, our features in 2006 highlight a different technology category each month, tracing the past 30 years of the technology, and continuing with a glimpse into...

Briefs: Test & Measurement
Interferometer for Low Uncertainty Vector Metrology

The figure is a simplified schematic diagram of a tilt-sensing unequal-path interferometer set up to measure the orientation of the normal vector of one surface of a cube mounted on a structure...

Briefs: Test & Measurement
Rayleigh Scattering for Measuring Flow in a Nozzle Testing Facility

A molecular Rayleigh scattering based air density measurement system was built in a large nozzle and engine component test facility for surveying supersonic plumes from jet-engine...

Application Briefs: Test & Measurement
Science Instruments to Examine Pluto and Its Moon

Science instruments
Southwest Research Institute
San Antonio, TX
210-684-5111
www.swri.org

Briefs: Test & Measurement
Flexible Cryogenic Temperature and Liquid-Level Probes

Lightweight, flexible probes have been developed for measuring temperatures at multiple locations in tanks that contain possibly pressurized cryogenic fluids. If the fluid in a given tank is...

Briefs: Test & Measurement
Wheel Electrometer System

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