ARMY MIL-PRF-49175 C (1)-2008 COOLER CRYOGENIC MECHANICAL HD-1033B UA AND HD-1033C UA《机械式低温冷却器 HD-1033B UA AND HD-1033C UA》.pdf
《ARMY MIL-PRF-49175 C (1)-2008 COOLER CRYOGENIC MECHANICAL HD-1033B UA AND HD-1033C UA《机械式低温冷却器 HD-1033B UA AND HD-1033C UA》.pdf》由会员分享,可在线阅读,更多相关《ARMY MIL-PRF-49175 C (1)-2008 COOLER CRYOGENIC MECHANICAL HD-1033B UA AND HD-1033C UA《机械式低温冷却器 HD-1033B UA AND HD-1033C UA》.pdf(21页珍藏版)》请在麦多课文档分享上搜索。
1、 MIL-PRF-49175C(CR) w/AMENDMENT 1 27 August 2008 SUPERSEDING MIL-PRF-49175C(CR) 9 October 1997 PERFORMANCE SPECIFICATION COOLER, CRYOGENIC, MECHANICAL HD-1033B/UA AND HD-1033C/UA This specification is approved for use within the Communications-Electronics Command, Department of the Army and is avail
2、able for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers one type of common module with 2 interchangeable models; Cooler, Cryogenic, Mechanical, HD-1033B/UA and HD-1033C/UA. 2. APPLICABLE DOCUMENTS. 2.1 General. The documents listed in
3、this section are specified in sections 3 and 4 of this specification. This section does not include documents cited in other sections of this specification or recommended for additional or as examples. While every effort has been made to ensure the completeness of this list, document users are cauti
4、oned that they must meet all specified requirements documents cited in sections 3 and 4 of this specification, whether or not they are listed. Comments, suggestions, or questions on this document should be addressed to: Commander, US Army, CERDEC, ATTN: AMSRD-CER-PR-D, Fort Monmouth, NJ 07703-5000 o
5、r emailed to Jeffrey.Carverus.army.mil. Since contact information can change, you may want to verify the currency of this address information using the ASSIST Online database at http:/assist.daps.dla.mil. AMSC N/A FSC 5855 Distribution Statement A. Approved for public release; distribution is unlimi
6、tedINCH-POUND Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-49175C(CR) w/AMENDMENT 1 22.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The follo
7、wing specifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited
8、 in the solicitation (see 6.2). STANDARDS DEPARTMENT OF DEFENSE MIL-STD-810 - Environmental Test Methods and Engineering Guidelines (Unless otherwise indicated, copies of the above specifications, standards, and handbooks are available from the Standardization Document Order Desk, 700 Robbins Avenue
9、, Building 4D, Philadelphia, PA 19111-5094). 2.3 Order of precedence. In the event of a conflict between the text of this document and the references cited herein (except for related associated specifications or specification sheets), the text of this document takes precedence. Nothing in this docum
10、ent, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Description. The cooler, Cryogenic, Mechanical HD-1033B/UA and HD-1033C/UA, referred to herein as the cooler, is a closed-cycle refrigerator for cooling the infrared detector a
11、nd interfacing with the Dewar of the infrared detector-Dewar package in an infrared system. 3.2 Interface requirement. The cooler, Cryogenic Mechanical HD-1033B/UA shall conform to Drawing SM-D-969477 and SM-D-971500 for interface requirements. 3.2.1 Weight. The weight of the cooler shall not exceed
12、 3.8 pounds. 3.3 First article. The contractor shall furnish first article assemblies in accordance with 4.2. 3.4 Materials, parts, and processes. The contractor shall select the parts, materials and processes but these materials shall be capable of meeting all of the operational and environmental p
13、erformance requirements specified herein. 3.5 Performance characteristics. The cooler shall meet the performance characteristics specified herein when adequate heat sinking or convective cooling is provided to ensure that any point on the cooler cylinder head shall fall within 5C to 15C above ambien
14、t air temperature.Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-49175C(CR) w/AMENDMENT 1 33.5.1 Cooling capacity. The cooler with thermal load (copper mass) shall provid
15、e the minimum refrigeration capacity at 80 K maximum as shown in figure 1, curve A. 3.5.2 Cooldown time. The cooldown time to reach a cold tip temperature of 80 K from ambient with a 1440, (+25, -0) joule copper thermal mass (from 300 K to 80 K) shall be in accordance with figure 2. 3.5.3 Input powe
16、r. The total input power to the cooler shall not exceed that shown in figure 3 with 1440, (+25, -0) joule thermal mass after cold tip temperature has stabilized with the heat load shown in figure 1, curve A. The input voltage shall be 117, 2 volts alternating current (VAC), 400, 20 hertz (Hz) power
17、source. 3.5.4 Acoustic noise. The cooler noise emission shall not be more than the values listed below, when measured at a distance of 3 feet. Sound pressure values Center Frequency Octave band Maximum sound pressure (Hz) (Hz) level(dB), ref.0.0002 microbar 125 87-175 45 250 175-350 45 500 350-700 4
18、8 1000 700-1400 55 2000 1400-2800 60 4000 2800-5600 65 8000 5600-11200 65 3.5.5 Leak rate. The leak rate of the cooler shall not be greater than 2.5 x 10-7 cubic centimeters per second (cc/sec) helium equivalent at an ambient temperature of +23C, 5C. 3.5.6 Vibration output. The maximum amplitude, at
19、 the ambient temperature of +23C 5C, of the vibrational force induced by the cooler at a frequency of 26Hz 4Hz or any of the next eight harmonics along the compressor piston and coldfinger axes shall not exceed 0.35 pound (semi-amplitude) and shall not exceed 0.5 pound (semi-amplitude) along the mot
20、or axis. The maximum amplitude of the torque induced by the cooler about the motor, piston and coldfinger axes at 26Hz 4Hz or any of the next eight harmonics shall not exceed: a. 4.0 In-oz (semi-amplitude) compressor piston axis b. 4.0 in-oz (semi-amplitude) coldfinger axis c. 15.0 in-oz (semi-ampli
21、tude) motor axis.Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-49175C(CR) w/AMENDMENT 1 43.5.7 Restart. The cooler shall restart after having cooled to the operating tem
22、perature of at least 80K at any ambient from -54C to +71C. 3.6 Environmental conditions. 3.6.1 Temperature shock. The cooler shall not be damaged (see 6.3.1) by sudden changes in temperature between -62C and +95C. 3.6.2 High temperature. The cooler shall not be damaged by storage to +95C or operatio
23、n up to +71C. 3.6.3 Low temperature. The cooler shall not be damaged by operation to -54C or storage to -62C. 3.6.4 Shock. The cooler shall not be damaged by high intensity shocks of 100 gs peak amplitude with 11 milliseconds duration and by bench handling tests. 3.6.5 Vibration. The cooler shall no
24、t be damaged by vibration over a frequency spectrum at the specified g levels and amplitudes shown in Figure 4. 3.7 Burn-in. Each cooler delivered shall have accumulated a minimum of 12 hours burn-in over the temperature profile in accordance with figure 5. 3.8 Reliability. The cooler shall have a l
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