acceptance temperature limits in vaccum and the qualification Instrument should be tested to qualification temperature limits in vacuum. ...
NASA Website
Solar array drive mechanisms were subjected to thermal vacuum acceptance and qualification tests. They were thermally cycled over a range of test temperatures at a vacuum pressure less than 0.00001 torr. The motor power, differences in the demanded and ac...
National Technical Information Service (NTIS)
developed a successful silver-zinc battery for use on the. Surveyor spacecraft. ... qualification, acceptance, solar-thermal-vacuum, and ...
Mar 1, 2011 ... mechanical and electrical designs. Also included are a summary of acceptance, qualification, and vibration tests and thermal vacuum testing. ...
Mar 28, 2001 ... Ceramic - Clean and bake porous ceramics(see Thermal Vacuum Bake). ... Silicone lubricants shall not be used in the vacuum system. ... relubrication using acceptable lubrication (see Lubricant section), and the use of ...
THE THERMAL VACUUM TESTING FACILITY 6. A Part of ... Vacuum Facility 6 ( VF6) is a 25-foot-diameter thermal vacuum facility located at. NASA Glenn ...
... Title : Thermal Radiation Absorptance and Vacuum Outgassing Characteristics of Several Metallic and Coated Surfaces. ...
DTIC Science & Technology
The outgassing characteristics of electrodeposited black chromium were determined because of interest in using this coating in vacuum applications. Data obtained for a variety of conditions led to the conclusion that this coating is acceptable for use in ...
... Shock 6 dB above maximum expected 1 activation Of all shock- environment, 3 times in both producing ... Thermal Vacuum 100C beyond acceptance ...
The Cryogenic Thermal Vacuum Test Facility is located in the Technology Development Group Thermal Laboratory. The original vacuum chamber has been ...
With manufacturing facilities placing increased emphasis on operating costs and environmental protection, replacement of inefficient or wasteful process methods is being considered. In the past, the accepted method for drawing or maintaining a vacuum on condensers, process reactors, or equipment and processes requiring subatmospheric conditions, has been ...
E-print Network
This citation summarizes a one-page announcement of technology available for utilization. Phosphate glass has the same high coefficient of thermal expansion as aluminum and therefore can be used as a vacuum seal between aluminum parts. A report discusses ...
Thermal vacuum testing shall be performed to demonstrate the hardware can survive the on ... The thermal vacuum requirement shall be verified by test at the ...
thermal vacuum (TN) environmental testing. The test program included both maximum and minimum .... Table 1 : Summary of Thermal Vacuum Test Phases ...
a thermal vacuum environmental test program based on an optimization of program costs. This model is ... DEVELOPMENT OF THE THERMAL VACUUM TEST ...
THERMAL VACUUM CHAMBER A chamber A is the larger of two thermal vacuum test chambers located in the Space environment Simulation laboratory at the ...
Nov 22, 2010 ... Prepping Aquarius for Thermal Vacuum Tests. The joint U.S. and Argentine Aquarius/SAC-D spacecraft is prepped for thermal vacuum chamber ...
Space Vehicle Systems - Thermal Vacuum Test Facility provides the capability to subject test articles to combined thermal and vacuum conditions which ...
The Apollo Telescope Mount's thermal systems unit was utilized to conduct a full-scale thermal vacuum test to verify the thermal design and the analytical techniques used to develop the thermal mathematical models. Thermal vacuum test philosophy, test ...
... Descriptors : (*CRYOGENICS, THERMAL INSULATION), (*THERMAL INSULATION, THERMAL PROPERTIES), MEASUREMENT, VACUUM ...
May 25, 2004 ... Thermal Vacuum Test Set Up. Thermal Vacuum Test Set Up. See text on the rest of the page. Thermal Vacuum test set up for three Tile Detector ...
The remaining three assemblies, high voltage power supply, oscillator, ... FAILURE EFFECT. l1lLEl1ll_IlE|1. WC/CLA does not respond to any ..... Acceptance Test per l'PAI-2294819, including vibration and thermal vacuum. lorques .... Qa_u_5_:: toss of phase lock due to thermal assymetry of the 3.58 H-lz Phase ...
A tokamak power reactor configuration is proposed which locates the primary vacuum boundary away from the plasma chamber. The vacuum boundary is the inside surface of the reactor cell. This is expected to eliminate the need for vacuum joints at the torus sector allowing the reactor to be designed as modular units which can be ...
DOE Information Bridge
... Space simulation chambers, *Vacuum chambers, Thermal properties, Atomic clocks ... system, Navigation satellites, Test methods, Control ...
... Developed from federally funded research, testing and training programs; updated ... Title : The Vacuum Thermal Stability Test for Explosives. ...
... Abstract : THIS REPORT DESCRIBES A THERMAL-VACUUM OUTGASSING MODEL AND TEST PROTOCOL FOR PREDICTING OUTGASSING ...
... Title : A Thermal Vacuum Technique for Measuring Solar Absorptance of Satellite Coatings as a Function of Angle of Incidence,. Corporate Author : ...
... Developed from federally funded research, testing and training ... Title : A Screening Test Method Employing a Thermal Vacuum for the ...
The Cosmic Background Explorer Observatory (COBE) underwent a thermal vacuum thermal balance test in
NASA Technical Reports Server (NTRS)
Several high temperature superconducting (HTS) cable demonstration projects have begun operation on the electric grid in the last few years with the liquid nitrogen-cooled cable contained in one or more vacuum-insulated, flexible cryostats with lengths up to 600 meters. These grid demonstration projects are prototypes of the anticipated commercial market which will require ...
Several high temperature superconducting (HTS) cable demonstration projects have begun operation on the electric grid in the last few years with the liquid nitrogen-cooled, three-phase cable contained in one or more vacuum-insulated, flexible cryostats with lengths up to ~600 meters. These grid demonstration projects are realistic prototypes of the anticipated commercial ...
NASA Astrophysics Data System (ADS)
The paper describes the steps of optimal design for a fixed vacuum solar thermal collector (all glass tubular construction) intended to maximize the collected heat energy and to minimize losses and cost. The first steps selects the operating temperature near 200 C or below. The next step chooses fixed (nontracking) collector. Further steps deal with ...
The vacuum systems at the Stanford Linear Accelerator Center (SLAC) are primarily of all-metal construction and operate at pressures from 10/sup -5/ to 10/sup -11/ Torr. The primary gas loads during operation result from thermal desorption and beam-induced desorption from the vacuum chamber walls. These desorption rates can be ...
The vacuum thermal conductivity of the Apollo 16 fines is presented as a function of temperature for
... Accession Number : AD0608766. Title : THERMAL DEGRADATION OF AN AROMATIC POLYPYROMELLITIMIDE IN AIR AND VACUUM. II. ...
... Title : THERMAL DEGRADATION OF AN AROMATIC POLYPYROMELLITIMIDE IN AIR AND VACUUM. I. RATES AND ACTIVATION ENERGIES,. ...
... for Research Development Test and Evaluation ... Title : THERMAL CONDUCTIVITY LEAK DETECTORS ... BY OVERPRESSURE OR VACUUM. ...
... Title : REFLECTIVITY MEASUREMENTS OF SELECTED THERMAL CONTROL COATINGS IRRADIATED IN HIGH VACUUM. ...
... HEAT TRANSFER, VAPOR PRESSURE, RAREFIED GAS DYNAMICS, VISCOSITY, THERMAL INSULATION, THERMAL CONDUCTIVITY. ...
The background and tasks formulation of the study of Solar Simulator collimation mirror cryocontamination in Large Thermal Vacuum Facility are outlined, research methods and experiment procedures are described, experimental relationships obtained are analyzed and practical recommendations are given. The accepted procedure of ...
Thermal insulation vacuum panels are formed of an inner core of compressed low thermal conductivity powders enclosed by a ceramic/glass envelope evaluated to a low pressure.
... SOURCE FOR THERMAL CONTROL DURING THERMAL-VACUUM TESTING. FIGURE 1 OF THIS PAPER SHOWS A TYPICAL TEST SETUP. ...
Space simulating vacuum chambers frequently require walls of high thermal radiation absorptance. A number of surface coatings have essentially thermal ...
chamber used for thermal vacuum and thermal balance testing, as well as for the bakeout of large test items. Test articles are normally loaded through the ...
Jun 23, 2010 ... Facility 225 is a large, horizontal, cylindrical, thermal vacuum chamber used for thermal vacuum and thermal balance testing, and baking out ...
Facility 238 at the goddard Space Flight center is a vertical thermal vacuum test chamber used for thermal vacuum and thermal balance testing, ...
Facility 225 at the goddard Space Flight center (gSFc) is a horizontal loading thermal vacuum test chamber used for thermal vacuum and thermal balance ...
Facility 225 at the Goddard Space Flight Center is a horizontal loading thermal vacuum test chamber used for thermal vacuum and thermal balance testing, ...
The outgassing characteristics of electrodeposited black chromium were determined because of interest in using this coating in vacuum applications. Data obtained for a variety of conditions led to the conclusion that this coating is acceptable for use in optical-transport networks and plasma-physics experiments. The outgassing rate for an unbaked coating ...
Energy Citations Database
The space simulation model was developed for the realization of thermal vacuum tests acceptance of the SCD-01 Brazilian satellite. The adopted method is based in the simulation by infrared heater plates. The results confirmed the technic suitability.
The purpose of this Acceptance Test Procedure (ATP) is to verify the operability of the three new furnaces as controlled by the new Honeywell Modular Automation System (MAS). The Honeywell MAS is being installed in PFP to control the three thermal stabilization furnaces in glovebox HA-211. The ATP provides instructions for testing the configuration of the ...
... Thermal decomposition characteristics were investigated by mass spectroscopy in vacuum and thermal gravimetric analysis in nitrogen and air. ...
The classical vacuum of physics is not empty, but contains a distinctive pattern of electromagnetic fields. Discovery of the vacuum, thermal spectrum, classical electron theory, zero-point spectrum, and effects of acceleration are discussed. Connection between thermal radiation and the classical ...
ERIC Educational Resources Information Center
Vacuum Facility 6 (VF6) is a 25-foot-diameter thermal vacuum facility located at ... the clean, cryogenic vacuum system provides a no-load base pressure of 5 x ...
The multi-ampere currents required for high luminosity operation of an asymmetric B factory leads to extremely stressing requirements on a vacuum system suitable for maintaining long beam-gas lifetimes and acceptable background levels in the detector. We present the design for a Cu alloy vacuum chamber and its associated pumping system ...
Design features, performance goals, and test results with components of a complete panel of a new evacuated compound parabolic concentrator (CPC) solar heat collector are presented. Performance gains over previous designs were projected to accrue from placing the reflector surface in a vacuum to eliminate surface degradation, and the use of a glass cover eliminated the need ...
... 20 gr. Experiments were carried out in parallel in an electric vacuum furnace and in air in a muffle furnace. The degree ...
... Title : VACUUM DISTILLATION, VAPOR PYROLYSIS WATER RECOVERY SYSTEM UTILIZING RADIOISOTOPES FOR THERMAL ENERGY. ...
... thermal energy recovery testing was also ... of the acceptance test procedure, the ... RECOVERY, *ACCEPTANCE TESTS, VOLUME, ENVIRONMENTS ...
AlliedSignal and Micro-Mode Products joined under a DOE CRADA to develop a new package for next-generation electronics devices. Requirements included low cost of manufacture, ability to satisfy thermal expansion requirements, ability to satisfy thermal dissipation requirements, acceptable digital and microwave performance, and ...
The remaining three assemblies, high voltage power supply, oscillator, ..... Acceptance Test per TP-Al'-2294819, including vibration and thermal vacuum. Torques .... FAILURE NUDE 0ND HHLURE EFFECT mug; 'i _�[l Ln-11 51 cccemucr ... Qagsez Loss of phase lock due to thermal assymetry of "the 3.58 MHz Phase ...
The operating principle of thermal vacuum sensors was studied, and models of the structures feasible with integrated-circuits technology were constructed. The feasibility of thermal vacuum sensors based on integrated silicon thermopiles is shown. Sensors ...
all of which were necessary to conduct a high-heat-load, thermal-vacuum test. The final results showed that the techniques were adequate for thermal-vacuum ...
THE THERMAL VACUUM CHAMBER A. A part of NASA's Strategic capabilities Assets program chamber A is the larger of two thermal vacuum test chambers ...
People Who Read This Also Read... Feature Text Size Grow Text SizeShrink Text Size Next Moon Mission Begins Thermal Vacuum Test 10.23.08 LRO enters the Thermal Vacuum Chamber This...
Science.gov Websites
The operating principle of thermal vacuum sensors was studied, and models of the structures feasible with integrated-circuits technology were constructed. The feasibility of thermal vacuum sensors based on integrated silicon thermopiles is shown. Sensors optimized with the results of theoretical models were ...
... Accession Number : ADD111880. Title : VACUUM THERMAL-MECHANICAL FATIGUE BEHAVIOR OF TWO IRON-BASE ALLOYS,. ...
and an engineering test unit (ETU) has been built and tested in a thermal vacuum chamber. The ETU assembly consists of a propylene loop heat pipe, two ...
Test Setup. A. Test Article Description. Testing was performed in a thermal vacuum chamber at Johnson Space Center. Three PCM test articles were evaluated. ...
Thermal Vacuum Chambers (TVC) were included among the four initial asset categories approved by the Strategic Management Council in August, 2005. ...
... The fuel cell, tested in the thermal vacuum chamber at ... the second and final ground qualification of this orbital fuel cell prior to orbital test. (Author). ...
Jul 7, 2009 ... Diviner undergoing post thermal vacuum range of motion testing. Diviner is one of seven instruments aboard NASA's LRO Mission.
The system was integrated inside a large vacuum chamber in order to ... thermal shroud inside the vacuum chamber, creating a flight-like thermal environment. ...
Aug 3, 2011 ... There are four thermal vacuum tests included in this archive. The first thermal vacuum test data (PDS data set ID: ...
Jun 23, 2008 ... The Lunar CRater Observation and Sensing Satellite is gently maneuvered into the thermal vacuum chamber at the Northrop Grumman facility, ...
... Concerns with Tetra Pak's Vacuum Thermal Instant Sterilizer (VTIS) Higher Heat Shorter ... The examination frequency for clean equipment that does not need repair ...
Center for Food Safety and Applied Nutrition (CFSAN)
The vibration and thermal vacuum test of laser retroreflector array were performed. The test ... Therefore, the thermal vacuum test was successfully ...
Jun 23, 2010 ... Facility 241 is a horizontal, cylindrical, small-sized, cryopump thermal vacuum test chamber used for thermal vacuum testing and bakeout of ...
Title: Design and Fabrication of a Stirling Thermal Vacuum Test. Authors: Salvatore M. Oriti, NASA Glenn Research Center. Groupname: MWG ...
Glenn Research Center, Cleveland, Ohio. Design and Fabrication of a Stirling Thermal. Vacuum Test. NASA/TM2004-213372. October 2004. AIAA2004 ...
A test has been conceived at GRC to demonstrate functionality of the Stirling convertors in a thermal vacuum environment. The test article resembles the ...
May 29, 2009 ... Dawn spacecraft in thermal vacuum chamber. Dawn, part of NASA's Discovery Program of competitively selected missions, was launched in 2007 ...
the motivation, rationale, and basis for thermal-vacuum hot dwell test durations. It is proposed in this work to use the best-fit statistical model from reliability, ...
Manned thermal-vacuum tests of the Apollo spacecraft presented many first-time problems in the areas
was built and tested during thermal vacuum testing of the space infrared ... predicted to contract approximately 1.1cm during thermal vacuum testing due to the ...
... Descriptors : , (*LAMINATED PLASTICS, THERMAL INSULATION), (*THERMAL INSULATION, ACCEPTABILITY), (*GLASS TEXTILES ...
This paper details the approach adopted and applied on the thermal vacuum tests campaign of the CBERS Flight Model #2 spacecraft, successfully performed at the Integration and Tests Laboratory - LIT, National Institute for Space Research - INPE, in S�o Jos� dos Campos, SP, from September 7th to 28th, 2001. Measuring approximately 1.8 x 2.0 x 2.2m, ...
A turnkey thermal vacuum facility is discussed. A system is described that integrates five major subsystems including the transporters, multiplexers, a thermal shrouded test fixture, a thermal isolation system and an internal utility distribution system i...
The FTU vacuum vessal has been designed to withstand high electromagnetic and thermal loads and to reach high vacuum conditions which are essential to obtain clean, impurity free plasma. After a survey of the vacuum chamber requirements and of the design ...
Some thoughts on the electromagnetic vacuum are presented in connection with the vacuum and source fields as alternative physical bases for understanding spontaneous emission, the Lamb shift, Casimir effects, van der Waals forces, and the ''thermalization'' of vacuum fluctuations ...
