Test and Evaluation of 18,000 BTUH/100 CFM Integrated Chemical Filter and Environmental Control Equipment (ICE) Unit

1986 ◽  
Author(s):  
Robert B. Sherfy ◽  
John D. Tanner
Keyword(s):  
Environmental Control ◽  
Control Equipment ◽  
Test And Evaluation

Thermal Considerations in Lens Regulator Systems

1970 ◽  
Vol 28 ◽  
pp. 358-359
Author(s):  
K.C. Newton
Keyword(s):  
Electron Microscope ◽  
Thermal Effects ◽  
Environmental Control ◽  
Reference Networks ◽  
Better Than

Thermal effects in lens regulator systems have become a major problem with the extension of electron microscope resolution capabilities below 5 Angstrom units. Larger columns with immersion lenses and increased accelerating potentials have made solutions more difficult by increasing the power being handled. Environmental control, component choice, and wiring design provide answers, however. Figure 1 indicates with broken lines where thermal problems develop in regulator systemsExtensive environmental control is required in the sampling and reference networks. In each case, stability better than I ppm/min. is required. Components with thermal coefficients satisfactory for these applications without environmental control are either not available or priced prohibitively.

Initial Operational Test and Evaluation (IOT&E) of ASVAB Forms 11, 12 and 13: Parallelism of the new forms

1988 ◽  
Author(s):  
Marcia A. Andberg ◽  
William G. Stillwell ◽  
J. Stephen Prestwood ◽  
John R. Welsh
Keyword(s):  
Test And Evaluation ◽  
Operational Test ◽  
Operational Test And Evaluation
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