1、NIL-PRF-49149D 0b 208722b T49 H 1 INCH-POUND I MIL-E-49149C (CR) 27 May 1992 PERFORMANCE SPECIFICATION ELECTRONIC CONTROL ASSEMBLY VIEWER, DRIVERS NIGHT VISION, AN/VVS-2(V) This specification is approved for use by US Army Communications-Electronics Command, Department of the Army, and is available
2、for use by all Departments and Agencies of the Department of Defense, 1. SCOPE 1.1 Scope. This specification covers the Electronic Control Assembly herein referred to as electronic control, which is part of Viewer, Drivers Night Vision AN/VVS-2(V). 2. APPLICABLE DOCUMENTS 2.1 General. The documents
3、listed in this section are specified in sections 3 and 4 of this specification. This section does not include documents in other sections of this specification or recommended for additional information or as examples. While every effort has been made to insure the completeness of this list, document
4、 users are cautioned that they must meet all specified requirements in sections 3 and 4 of this specification, whether or not they are listed. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving the document should be addressed to: HQ,
5、USA Communications-Electronics Command, ATTN: AMSEL-LC-LEO-E-EP Fort Monmouth, NJ 07703-5023 by using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 5855 DISTRIBUTION STATEMENT A: Approved for public release; distribu
6、tion is unlimited. Licensed by Information Handling ServicesMIL-PRF-49145D MIL- PRF- 4 9 14 9D ( CR) 2.1.1 Reference documents, drawings and publications. The following other Government documents, drawings and publications form a part of this document to the extent specified herein. Unless otherwise
7、 specified, the issues are those cited in the solicitation (see 6.2.d). DRAWINGS USA COMMUNICATIONS-ELECTRONICS COMMAND SM-D-771336 - Electronic Control Assembly (Copies of specifications, standards, drawings and publications required by contractors in connection with specific procurement functions
8、should be obtained from the procuring activity or as directed by the contracting officer.) 2.2 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes
9、applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Description. The electronic control is mounted to and limits operation of the Viewer, Drivers Night Vision AN/VVS-2(V) under damaging light brightness level. 3.2 Construction. The electronic control sh
10、all be constructed to assure compliance with the contract configuration baseline and in accordance witn SM-D-771336 as applicable. 3.3 First article testing (FAT). When specified in the contract (see 6.2.c and 6.2.f) the contractor shall furnish units for FAT inspection and approval (see 4.2). 3.4 M
11、aterials. The contractor shall select parts and materials that are fully capable of meeting all of the operational and environmental requirements specified herein. The materials specified in the applicable drawings are recommended, but not mandatory. Selection criteria of the class, grade or type pa
12、rt shall ensure the material will be able to perform its intended function when it is assembled. Verification of the supplier meeting the overall performance requirements shall be the governing acceptance standard. Recovered materials shall be used to the maximum extent possible. 3.5 Performance cha
13、racteristics. NOTE: The performance tests of 3.5 shall be performed with a 51 112 ohm load between pins 1 and 4 of the electronic control. 3.5.1 Power output. When the photo-detector is blocked, the electronic control shall be within k0.3 Vdc of the input voltage when energized with a BA-5567/U batt
14、ery, or equivalent DC power source. 3.5.2 Power cutoff. The output voltage of the electronic control shall be reduced to 0.2 Vdc or less when the photodetector views a bright target area between 0.1 and 0.18 footlamberts. 3.5.3 Power restoration. Output voltage shall return to within t 0.2 Licensed
15、by Information Handling ServicesUIL-PRF-4714SD m 9999906 2087228 8Lfi m Vdc of the input voltage within 5 seconds after the brightness of the target area is reduced below the cutoff value of the photodetector. 3.6 Environmental characteristics. 3.6.1 Temperature Extremes. The electronic control shal
16、l not be damaged nor suffer degradation of performance (see 3.10.1 and 3.10.4) after being operated at a temperature of +52OC or -51OC. The electronic control shall not be damaged nor suffer degradation of performance (see 3.10.1 and 3.10.4) after being subjected to storage at +68OC or -51OC. The el
17、ectronic control shall not be damaged nor suffer degradation of performance (see 3.i.1 and 3.10.4) after being subjected to repetitive temperature changes between +23OC and -51OC within 5 minutes and +23C and +68OC within 5 minutes. The soak time at temperature extremes shall be sufficient for the e
18、ntire electronic control to achieve stabilization a the specified temperature. Time for temperature stabilization is defined as the amount of time required for the most internal part of the unit under test to achieve the specified temperature. Operation of the electronic control is not required duri
19、ng storage testing. 3.6.2 Vibration. The electronic control shall not be damaged nor suffer degradation of performance (see 3.10.1 and 3.10.4) after being subjected to vibration equivalent to that encountered in tracked vehicles during 5000 miles of operation. Vibration shall be limited to one sine
20、sweep from 5.0 to 500 Hertz (Hz) and back to 5.0 Hz within 15 minutes in the vertical axis only. Vibration shall be performed from 5.0 to 5.5 Hz at 1 inch displacement, 5.5 to 30 Hz. at 1.5 gs peak, 30 to 50 Hz. at 0.33 inch displacement and 50 to 500 Hz. at 4.2 gs peak 3.6.3 Shock. 3.6.3.1 Basic sh
21、ock. The electronic control shall not be damaged nor suffer degradation of performance (see 3.10.1 and 3.10.4) after being subjected to basic shock of 40 gs (see 3.10.5) for a duration of 18 milliseconds. 3.6.3.2 Weapon shock. The electronic control shall not be damaged nor suffer degradation of per
22、formance (see 3.10.1 and 3.10.4) after being subjected to simulated weapon firing shock of 100 gs (see 3.10.5) at 1.5 milliseconds on half sine pulse. 3.7 Marking. Marking shall be in accordance with applicable drawings unless otherwise specified in the contract or purchase order. Licensed by Inform
23、ation Handling ServicesNIL-PRF-49149D H 9999906 2087229 758 I MIL-PRF- 4 91 4 9D (CR) 3.8 Treatment and paintinq. Treatment and painting shall be in accordance with applicable drawings unless otherwise specified in the contract or purchase order. 3.9 Workmanship. Standards of workmanship shall be su
24、ch that the electronic control will meet all requirements of this specification and any reference specifications or drawings. 3.10 Technical interpretations. The following technical interpretations are, when referenced in sections 3 or 4, mandatory for this specification. 3.10.1 Damage. Damage is de
25、fined as any breakage, loosening, shift, dents, failure of any finish, hardware, connection, or component, or condensation, fogging or moisture on any internal surface. 3.10.2 Ambient temperature. Ambient temperature is defined as 23OC, i looc. 3.10.3 Environmental temperature. Environmental chamber
26、 temperatures shall be controlled to within 55OC of the specified temperature unless otherwise specified. 3.10.4 Degradation of performance. Degradation of performance is defined as failure to operate in accordance with the performance requirements of this specification. 3.10.5 T. “g“ is defined as
27、an acceleration or deceleration of 32.17 feet per second per second. 4. VERIFICATION 4.1 Classification of inspection. Inspection shall be as classified as follows: a. First article tests (4.2). b. Conformance inspection (4.3). 4.2 First article testing (FAT). When specified in the contract or purch
28、ase order (see 6.2.f), first article testing shall be performed by the contractor. The quantity of first article test samples shall be as specified in the contract or purchase order (see 6.2.c) and shall be selected from the first production lot. 4.2.1 FAT Test. Each electronic control in the first
29、article lot shall be subjected to the performance tests in Table I. Electronic controls selected as FAT samples shall be subjected to the environmental tests of Table II. Failure of any test shall be cause for rejection of thBt electronic control and may be cause for rejection of the FAT. 4 Licensed
30、 by Information Handling ServicesMIL-PRF- 4 9 14 9D ( CR) Inspection Power output Power cutoff Power restoration TABLE Requirement Paragraph 3.5.1 3.5.2 3.5.3 I. Inspection Temperature Extremes Vibration Shock Unit first article testing. Requirement Paragraph 3.6.1 3.6.2 3.6.3 TABLE II Sample first
31、article testing. 4.2.2 Disposition of FAT samples. Disposition of FAT samples shall be in accordance with the contract or purchase order (see 6.2.c). 4.3 Conformance inspection. Requirements for conformance inspection shall be as specified in the contract or purchase order (see 6.2.e). Unless otherw
32、ise specified, all tests shall be performed at ambient temperature (see 3.10.2). 5. PACKAGING 5.1 Packaging. For acquisition purposes, the Packaging requirements shall be as specified in the contract or purchase order(see 6.2.h). When actual packaging of materials is to be performed by DoD personnel
33、, these personnel need to contact the responsible packaging activity to ascertain requisite packaging requirements. Packaging requirements are maintained by the Inventory Control Points packaging activity within the Military Department of Defen,se Agency, or within the Military Departments System Co
34、mmand. Packaging data retrieval is available from the managing Military Departments or Defense Agencys automated packaging files, CD-ROM products, or by contacting.the responsible packaging activity. 6. NOTES (This section contains information of a general or explanatory nature that may be helpful,
35、but is not mandatory.) 6.1 Intended use. The electronic control is used with the AN/VVS-2(V) for drivers viewing,during periods of darkness. 5 Licensed by Information Handling ServicesflIL-PRF-49147D 1111 Ob 2087233 306 II MIL-PRF-4 914 9D (CR) 6.2 Acquisition requirements. Acquisition documents mus
36、t specify the following: a. Title, number, and date of this specification. b. Necessary actions by contractor in the event of a lot failure. c. Quantity and schedule for FAT testing for all line items and d. Issue of DODISC to be cited in the solicitation, and if disposition of FAT samples. required
37、, the specific issue of individual documents referenced (see 2.1 and 2.1.1). proposal for conformance inspection to include specific requirements to be verified and the sampling plan to be used to provide the desired conficience level. e. Statement identifying that the contractor must submit his f.
38、Statement specifying that FAT testing is, or is not, required. g. Statement identifying that the contractor must submit his h. Packaging requirements. proposal for Environmental Stress Screening (ESS). 6.3 Definitions. See 3.10. 6.4 Subject term keyword listing. Power cutoff Power output Power restoration 6.5 Changes from previous issue. Marginal notations are not used in this revision to identify changes with respect to the previous issue due to the extersive changes. Custodian: Army - CR Preparing Activity: Army - CR Project 5855-0092 6 Licensed by Information Handling Services
