Test & Measurement

Briefs: Test & Measurement
Live-Cell Microscopy and Traction Force Measurements with Simulated Microgravity “Clinochip”

The deleterious effects of microgravity are undeniable: reduced bone mineral density, muscle atrophy, vascular remodeling, etc. These health issues...

Briefs: Test & Measurement
Comparison of Three Methods for Measuring Distortion in Optical Windows

The primary function of a window is to allow observation of, and protection from, a potentially hazardous environment. Yet, from the window designer’s point of view,...

Briefs: Test & Measurement
Improved Combustion Products Monitor for the ISS

Fire safety in space vehicles is of utmost importance, especially for manned flight. On the International Space Station (ISS), events that may lead to fires, especially smoldering, must be detected...

Briefs: Test & Measurement
Vector Network Analyzer Calibration for Quasi-Optical Dual Ports

It is desirable to measure the electromagnetic properties of devices and materials in the millimeter part of the spectrum. For guided wave-based devices and materials (waveguides,...

Briefs: Test & Measurement
Optically Modulated Miniature Magnetometer

The optically modulated miniature magnetometer (OMMM) is intended to replace two separate instruments (each with their respective mass and power allotments) that are commonly needed together for...

Briefs: Test & Measurement
Quantitative Analysis of Failure Mode in Adhesively Bonded Test Specimens

After adhesively bonded mechanical test specimens have been tested to failure, the failure mode must be interpreted and quantified. Areas of the adherent that are bare (no...

Briefs: Test & Measurement
Neutron Spectrometer for Inner Radiation Belt Studies

The Earth’s magnetosphere offers a wealth of information on particle dynamics, acceleration, and trapping. Fast neutrons, produced in the Earth’s atmosphere by the impact of galactic cosmic...

Briefs: Test & Measurement
Variable Acceleration Force Calibration System

A variable acceleration calibration system combines an innovative mechanical system and a statistical design of experiments to calibrate multi-axis force transducers. This system can reduce...

Briefs: Test & Measurement
A Synthetic Quadrature Phase Detector/ Demodulator for Fourier Transform Spectrometers

Fourier transform spectroscopy works by measuring a spectral/light signal through a Michelson interferometer. In order to know the wavelength of the signal, one...

Briefs: Test & Measurement
Sampling Mechanism for a Comet Sample Return Mission

A similar sampling mechanism could be deployed in dangerous situations on Earth.

Goddard Space Flight Center, Greenbelt, Maryland

Sample return missions have the...

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