Download or read book ELECTRONICS FOR DEEP SPACE CRYOGENIC APPLICATIONS NASA TM 2002 211695 NATIONAL AERONAUTICS AND SPACE ADMINISTRATION OCTOBER 2002 written by and published by . This book was released on 2003* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Electronics for Deep Space Cryogenic Applications written by R. L. Patterson and published by . This book was released on 2002 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Electronic Components and Systems for Cryogenic Space Applications written by and published by . This book was released on 2001 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Electronic Components and Systems for Cryogenic Space Applications NASA written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ELECTRONIC COMPONENTS AND SYSTEMS FOR CRYOGENIC SPACE APPLICATIONS NASA TM 2001 211129 DEC 6 2001 written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book PERFORMANCE OF HIGH SPEED PWM CONTROL CHIPS AT CRYOGENIC TEMPERATURES NASA TM 2001 211123 MAR 8 2002 written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book All Metal Compact Heat Exchanger for Space Cryocoolers written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-30 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the development of a high performance, all metal compact heat exchanger. The device is designed for use in a reverse Brayton cryogenic cooler which provides five watts of refrigeration at 70 K. The heat exchanger consists of a stainless steel tube concentrically assembled within a second stainless steel tube. Approximately 300 pairs of slotted copper disks and matching annular slotted copper plates are positioned along the centerline axis of the concentric tubes. Each of the disks and plates has approximately 1200 precise slots machined by means of a special electric discharge process. Positioning of the disk and plate pairs is accomplished by means of dimples in the surface of the tubes. Mechanical and thermal connections between the tubes and plate/disk pairs are made by solder joints. The heat exchanger assembly is 9 cm in diameter by 50 cm in length and has a mass of 10 kg. The predicted thermal effectiveness is greater than 0.985 at design conditions. Pressure loss at design conditions is less than 5 kPa in both fluid passages. Tests were performed on a subassembly of plates integrally soldered to two end headers. The measured thermal effectiveness of the test article exceeded predicted levels. Pressure losses were negligibly higher than predictions. Swift, Walter L. and Valenzuela, Javier and Sixsmith, Herbert Unspecified Center NAS5-30172; PROJ. 3307; SBIR-09.07-3800...

Download or read book DEVELOPMENT OF CRYOGENIC STORAGE SYSTEMS FOR SPACE FLIGHT written by UNITED STATES. NATIONAL AERONAUTICS AND SPACE ADMINISTRATION. and published by . This book was released on with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Helium 3 Helium 4 Dilution Cryocooler for Space written by National Aeronautics and Space Adm Nasa and published by . This book was released on 2018-11-12 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prototype dilution cryocoolers based on dilution refrigeration and adiabatic demagnetization refrigeration (ADR) cycles were designed, constructed, and tested. Although devices the devices did not operate as fully functional dilution cryocoolers, important information was gathered. The porous metal phase separator was demonstrated to operate in the -1-g configuration; this phase separation is the critical element in the He-3 circulation dilution cryocooler. Improvements in instrumentation needed for additional tests and development were identified. Hendricks, John B. and Dingus, Michael L. Unspecified Center ADIABATIC DEMAGNETIZATION COOLING; CRYOGENIC COOLING; CRYOGENIC EQUIPMENT; DILUTION; HELIUM ISOTOPES; THERMODYNAMIC CYCLES; PROTOTYPES; REFRIGERATING; REFRIGERATORS...

Download or read book A Description of the Software Element of the NASA Portable Electronic Device Radiated Emissions Investigation written by Sandra V. Koppen and published by . This book was released on 2002 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: