A semiautomatic test set for in-circuit testing of diodes.
In-circuit diodes testing by semiautomatic low current regulated voltage test set
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In-circuit diodes testing by semiautomatic low current regulated voltage test set
Design, fabrication, and stability testing of foil gas bearing test rig
Testing for normality with Kolmogoroff-Smirnoff test
Saturn S-4B/5 restartable oxygen-hydrogen burner limit and GOX testing test plan
Surveyor spacecraft testing at Environmental Test Laboratory, describing facilities and innovations designed for temperature extremes
Long term life test and vacuum tests of high temperature resistojets using ammonia and hydrogen propellants
Statistical techniques for selecting optimal test levels for vibration tests of spacecraft hardware
Field tests for SD-53 strapdown systems and correction of laboratory test programs
Face seal performance, mass spectroscopic test fluid study and supplementary test data for supersonic turbine engine mainshaft lubrication system
Wind tunnel investigation of use of slotted test-section walls to reduce wall interference for high-lift-model testing
Wall interference for static stability tests in closed rectangular test sections and in ground effect
Long term life test and vacuum tests of high temperature resistojets, using ammonia and hydrogen propellants
Various devices and techniques are described for testing hardware and components in four special environments: low temperature, high temperature, high pressure, and vibration. Items ranging from an automatic calibrator for pressure transducers to a fixture for testing the susceptibility of materials to ignition by electric spark are included.
The pertinent events concerned with the launch, float, and flight of balloon launched decelerator test vehicle AV-2 are discussed. The performance of the decelerator system is analyzed. Data on the flight trajectory and decelerator test points at the time of decelerator deployment are provided. A description of the time history of vehicle events and anomalies encounters during the mission is included.
The pertinent events concerned with the launch, float, and flight of balloon launched decelerator test vehicle AV-3 are discussed. The performance of the decelerator system is analyzed. Data on the flight trajectory and decelerator test points at the time of decelerator deployment are provided. A description of the time history of vehicle events and anaomalies encounters during the mission is included.
A variety of devices and techniques useful in nondestructive testing is described. Ranging in complexity from an automated ultrasonic testing system designed for complex laminated honeycomb structures, to a flexible leak detector probe, the items represent either potential savings in cost and time, or improvement in inspection quality over past techniques. Data cover weld and braze inspection, leak detection, and inspection of composite materials.
The results are presented of tests conducted on a series of 13 foot rotors with various blade twists during the time period from 1969 to 1972. The tests were accomplished at AFAPL Wright-Patterson Air Force Base, Ohio and the ONERA 8-meter tunnel at Modane, France. Both static and cruise performance data are presented.
The environmental and instrumentation requirements for long term testing of electrical propulsion thrusters which impose severe and unusual requirements upon the simulation facility were studied. High speed ions ejected from a mercury thruster erode material from collecting surfaces, which is then scattered and redeposited upon other surfaces, with resultant damage to the chamber and test article. By collecting the thruster plume on a frozen mercury surface damage to the thruster and chamber by back-scattered erosion products was minimized. Provisions for unattended operation, remote data acquisition, personnel safety, and instrumentation for assessing thruster performance are also discussed.