1、MIL-P-48494A 9 7999906 2005339 bOT W INCH-POUND I I I MIL-P-48494A(AR) O1 May 1995 (see 6.4) MILITARY SPECIFICATION POSITIONER, MIRROR, AZIMUTH This specification is approved for use by the U.S. Army Armament, Research, Development and Engineering Center (ARDEC) and is available for use by all Depar
2、tments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification establishes the requirements and quality assurance provisions for the Positioner, Mirror, Azimuth, PN 11747020 (see 6.1). 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications, standards, and ha
3、ndbooks. The following specifications, standards, and handbooks form a part of - this document to the extent specified herein. Unless otherwise specified, the issues of these document are those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supple
4、ment thereto, cited in the solicitation (see 6.2). SPECIFICATIONS MILITARY MIL-F-13926 Fire Control Materiel: General Specifications Governing the Manufacture and Inspection of Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use to improving this do
5、cument should be addressed to: Commander, U.S. Army ARDEC, ATTN: AMSTA-AR-EDE-S, Picatinny Arsenal, New Jersey 07806-5000 by using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A EMENT 4. Approved for public release; distr
6、ibution is unlimited. FSC 4931 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-P-48474A m 9999706 2005320 321 m MIL-1-45607 - Inspection Equipment; Acquisition Maintenance, and Disposition of STANDARDS MILITARY MIL-STD-100 - Engineering Drawing
7、Practices MIL-STD-202 - Test Methods for Electronic and MIL-STD-454 - Standard General Requirements for MIL-STD-810 - Environmental Test Methods MIL-STD-2000 - Standard Requirements for Soldered MIL-STD-2073-1 - Procedures for Development and Electrical Component Parts Electronic Equipment Electrica
8、l and Electronic Assemblies Application of Packaging Requirements (Unless otherwise indicated, copies of federal and military specifications, standards, and handbooks are available from: DODSSP - Customer Service, Standardization Documents Order Desk, 700 Robbins Avenue, Bldg 4D, Philadelphia, PA 19
9、111-5094.) 2.1.2 Other Government documents, drawings, and publications. The followincr other Government documents, drawings, and publications form a part if this document to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation. U.S. Army Armament R
10、esearch Development and Engineering Center (ARDEC) DRAWINGS 11747020 PS11747020 Positioner, Mirror, Azimuth Packaging of Mirror Positioner, Azimuth (Copies of Government drawings required by contractors in connection with specific acquisition functions should be obtained from the contracting activit
11、y or as directed by the contracting activity.) 2.2 Order of precedence. In the event of a conflict between the text of this document and the references cited herein (except for related associated detail specifications, specification sheets, or MS standards), the text of this document takes precedenc
12、e. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained (See contract provisions for additional precedence criteria). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3. REQUIREMEN
13、TS 3.1 Fabrication. The Positioner, Mirror Azimuth herein referred to as the assembly, shall be manufactured in accordance with Drawing 11747020 and drawings pertaining thereto and, assembled, shall meet the requirements of this specification. when 3.1.1 General Specifications. (see 4.6.3) 3.1.1.1 M
14、anufacture and inspection. The following provisions of MIL-F-13926 apply: a. Dimensions and tolerances b. Effect of protective coating on dimensions (Inorganic c. Part identification and marking d. Workmanship (Including applicable portions of type coatings) MIL-STD-2000 and MIL-STD-454, Requirement
15、 9) 3.1.1.2 Standards of manufacture. 3.1.1.2.1 Assembly and soldering. The requirements of MIL-STD-2000 shall apply, as a minimum. 3.1.1.2.2 Interchangeability. The assembly shall be manufactured in accordance with interchangeability requirements as specified in MIL-STD-100. 3.1.2 Ambient condition
16、s. Standard ambient conditions shall be as follows: a. Temperature 73O + 18OF b. Relative Humidity 50 percent 5 30 percent c. Atmospheric pressure 28.5 + 2.0 -3.0 in. Hg. 3.1.3 First article. When specified in the contract or purchase order (see 6-21, the contractor shall furnish sample units for fi
17、rst article inspection and approval (see 4.4). 3.2 Performance. Unless otherwise specified, the assembly shall meet the performance requirements herein under standard ambient conditions of 3.1-2 and the loads and power inputs of Table I. 3.2.1 AC REF and 115 volts ac. With the loads and power source
18、 applied as specified in Table I, the following voltages shall be present at the pins specified: a. AC REF 1 = 5.0 + O-1V rms between connector pins J1-B and J1-C (retur). b. AC REF 2 = 5.0 - + 0.1V rms between connector pins J1-A 3 Provided by IHSNot for ResaleNo reproduction or networking permitte
19、d without license from IHS-,-,-b. AC REF 2 = 5.0 2 0.1V rms between connector pins Jl-A and JI -C. c. 115V ac = 115 + 15/-20V rms, 400 - + 20 Hz between pins J-IT and J1-U (return). 3.2.2 Circuit continuity. With no power applied, direct continuity (resistance equal to or less than 1.0 ohm), shall e
20、xist between the test jacks aid connector pins specified in Table II. 3.2.3 Switching continuity. With no power applied, direct continuity (resistance equal to or less than 1.0 ohm), or an open circuit (resistance equal to or greater than 1.0 megohm) shall exist between connector pins as specified i
21、n Table III. 3.2.4 Plus and minus 15 volts direct current (V dc). With 28V dc and the loads applied as specified in Table I, the following voltages shall be present: a. 15.0 + 1.5V dc, ripple 200mV p-p maximum between connector pins JI -F and Jl -C (return) . b. -15.0 + 1.5V dc, ripple 200mV p-p max
22、imum between connector pins J1 -G and J1 -C (return) . 3.2.5 Motor drive voltage adjustment. With 28V dc and the loads applied as specified in Table I, the DEFLECTION switch set to the FT or RIGHT position and with DEFLECTION RATE control rotated in the clockwise direction, the motor drive signal be
23、tween connector pins J1-R and JI-S shall increase to 26.0 2 5.0V rms. The voltage shall be less than 2V rms with the DEFLECTION control in the OFF position. 3.2.6 Motor drive voltage phase. With 28V dc and the loads applied as specified in Table I, the DEFLECTION switch set to the RIGHT position, th
24、e phase of the motor drive voltage between connector pins J1-R and J1-U (return) shall be in phase with the 115V ac voltage between connector pins J1-T and J1-U (return). 3.2.7 Insulation resistance. All insulation between ungrounded circuits and ground, and between isolated circuits shall hace a mi
25、nimum resistance of 1 megohms with 500V dc applied. 3.2.8 Dielectric strength. There shall be no puncture of insulation, no sparkover, or decrease in dielectric strength when the insulated areas of the assembly are subjected to an ac rms potential of 200 volts at a frequency of 60 Hz for a period of
26、 not more than 30 seconds nor less than 5 seconds. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-P-48494A = 06 2005323 030 MIL-P-48494A(AR) TABLE I. Loads and Power. Item Conditions Characteristics Connections 1 1 .I 1.2 1.3 1.4 1.5 1.6 2. 2
27、.1 Loads Resistor Resistor Resistor Res i stor Resistor Resi stor Power source 2 8V “Connected between the following pins“ 1.3 kilohms, 1/4 watt, J1-A and JI-C - + 5 percent 1.0 kilohm, 1/4 watt, JI-B and JI-C - + 5 percent 750 ohms, ?/2 watt, JI-F and J1-C - + 5 percent 750 ohms, 1/2 watt, Jl-G and
28、 JI-C - + 5 percent 180 ohms, 5 watts, J1-R and J1-S - + 5 percent 3.3 kilohm, 5 watts, JI-T and J1-U - + 5 percent Tolerance: + 1 .OV Unless otherwise Ripple: 25kV p-p specified applied between JS-A (+) and J2-B (-1 TABLE II. Circuit continuity Item Test Jacks Connector Selection Switch S-4 Positio
29、n 1 J3 (SELECT SWITCH(AC) JI -V 24V Motor(ct1 2 J3 (SELECT SWITCH(AC) JI -P Laser Feedback 3 J3 (SELECT SWITCH(AC) JI -M Tach 4 J3 (SELECT SWITCH(AC) J1 -J Analog Range 6 Shield for wires that connect to JI -N 5 J4 (COMMON) JI -K J1-K, J1-M, and JI-P 7 J5 (BTL RNG LOGIC(DC) JI -W 8 J6 (AC REF 1) J1
30、-B 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_ MIL-P-48494A 9999906 2005324 T77 m MIL-P-48494A(AR) TABLE III. Switching continuity. Item Built in Test NORMAL Switch Pos i ti on Continuity Open Circuit ( - 1.0 ohm) (-1.0 megohm) 1 Built in tes
31、t 2 Normal J1-E to J1-C - JI-E to JI-D - - JI-E to J1-C - J1-E to JI-D 3.3 Environmental conditions. 3.3.1 Temperature. The assembly shall be capable of operating as specified herein over the operating temperature range of +400F to 1000F and shall not be damaged when subjected to the storage conditi
32、ons ranging from -650F to 1600F (see 4.6.2.1 and 4.6.2.2). 3.3.2 Vibration. The assembly shall be capable of operating as specified herein after withstanding exposure under the conditions of 3.1.2 to a sinusoidal vibration displacement of .O6 inch double amplitude, 10 - 55 Hz in accordance with Figu
33、re 1. Duration of exposure shall be not less than 80 minutes in each of three mutually perpendicular axes (see 4.6.2.3). 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-n w 3 c7 a n n 5 m w 3 n I cr) w X 3.3.3 Shock. The assembly shall be capable o
34、f operating as specified herein after withstanding exposure under the conditions of 3.1.2 to half sine wave shock pulses of 40 5 4 graviry units (gs) for a duration of 18 + 3 milliseconds (msec) in accordance with Figure 2. The assembly shall withstand three shock pulses applied in both directions a
35、long three mutually perpendicular axes (18 shocks). In addition, the assembly shall be capable of withstanding three half sine wave shock pulses of 100.0 2 10.0 9s for a duration of 1.5 + 0.2 msec applied in each direction along three mutually perpendTcular axes (see 4.6-2.4). 0.06 - I i I I 1 I I I
36、 4 I i I - - - - - - - - - - A = 40 gs D = 18 msec A = 100 gs LINE WAVE TU!SUTED m 0.10A ED D = 1.5 msec FIGURE 2. Shock Pulse. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- NIL-P-48494A = 9993906 2005326 84T = 3.3.4 Temperature cycling. The ass
37、embly shall be capable of operating as specified herein after withstanding exposure to temperature cycling and soaking between the temperatures of -250F and 140F in accordance with Figure 3 (See 4.6.2.5). 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified i
38、n the contract or purchase order, the contractor is responsible for the performance of all inspection requirements (examinations and tests) as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may use his own or any other facilities suitable for the pe
39、rformance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in this specification where such inspections are deemed necessary to ensure supplies and services conform to prescribed requi
40、rements. 4.1.1 Responsibility for compliance. All items shall meet all requirements of sections 3 and 5. The inspection set forth in this specification shall become a part of the contractors overall inspection system or quality program. The absence of any inspection requirements in the specification
41、 shall not relieve the contractor of the responsibility of ensuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling inspections, as part of manufacturing operations, is an acceptable practice to ascertain conformance to
42、requirements, however, this does not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to accept defective material. 4.1.2 Inspection equipment. Unless otherwise specified in the contract, the contractor shall supply, maintain and calibra
43、te inspection equipment in accordance with the provisions of MIL-1-45607 and by standard commercial practice. Contractor inspection equipment designs shall be submitted for Government approval as specified in the contract (see 6.5). 4.2 Classification of inspections. The inspection requirements spec
44、ified herein are classified as follows: a. First article inspection (see 4.4). b. Quality conformance inspection (see 4.5 and 6.8). 4.3 Inspection conditions. Unless otherwise specified, all inspections shall be performed in accordance with the quality assurance provisions of MIL-F-13926 and the con
45、ditions of 3.1.2. 4.4 First article inspection. The requirement for first article approval and the designation of responsibility for first 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-P-48494A 0b 2005327 786 i c FIGURE 3. Temperature Cycinq
46、. 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-article inspection to either the Government or the contractor shall be specified in the contract (see 6.3). 4.4.1 Sample. The contractor shall submit a first article sample as designated by the Cont
47、racting Officer for evaluation in accordance with the provisions of 4.4.2. The first article sample shall consist of two assemblies. 4.4.2 Inspections to be performed. Two assemblies shall be subjected to all inspections specified in Tables IV, V and VI. Tests 301-and 302 of Table-VI shall be perfor
48、med first. 4.4.3 Failure. Failure of any assembly to meet any requirement shall be cause for refusal to grant first article approval. article inspection upon any failure of any assembly to comply with any stated requirement. The Government reserves the right to terminate first 4.4.4 Responsibility.
49、The contractor, whether or not responsible, shall inspect the sample for conformance to all contractual requirements and shall submit a record of this inspection with the sample and certificates of conformance for materials. The Government reserves the right to witness inspections performed by the contractor. 4.5 Quality conformance inspection. 4.5
