NAVY MIL-T-22939 B-1972 TEST SET TORPEDO MARK 393 MOD 0《393号0型鱼雷测试装置》.pdf

1、MIL-T-22939B(OS) 6 October 1972 Superseding 28 February 1968 MIL- T- 2 29398 (OS) MILITARY SPEC I FICATI ON TEST SET, TORPEDO, MK 393 MOD O This specification has been approved by the Naval Ordnance Systems Command, Department of the Navy 1. SCOPE 1.1 This specification describes the requirements fo

2、r the procurement of Torpedo Test Set Mk 393 Mod O, LD 539994, which is used to check the com- munications link of Torpedo Mk 37 Mod 2. The test set provides all neces- sary control signals required for testing the torpedos communications system. The test set is enclosed in a portable, waterproof co

3、mbination case. 2. APPLICABLE DOCUMENTS 2.1 %e following documents of the issue in effect on the date of invi- tation for bids or request for proposals form a part of this specification to the extent specified herein. SPECIFICATIONS Mil it ary MIL-P- 11 6 BIIL- T- 945 STANDARDS Federal Federal Te t

4、Meth Standard NQ. 101 Mi 1 i tary MIL-STD-129 o Methods of Preservation Test Equipment for Use with Electronic Equipment; General Specification Preservation, Packaging, and Packing Materials; Test Procedures d Marking for Shipment and Storage Provided by IHSNot for ResaleNo reproduction or networkin

5、g permitted without license from IHS-,-,-MIL-STD-147 MIL- STD- 8 10 DUWINGS Naval Ordnance Sys tems Command Palletized and Containerized Unit Loads, 40“ x 48“ Pallets, Skids, Run- ners, or Pallet-Type Base Environmental Test Methods NAVORD LD 539994 Torpedo Test Set Mk 393 Mod O and all Parts and Su

6、bassemblies listed thereon NAVORD Drawing 2212066 Torpedo Test Set Mk 393 Mod O Assembly (Copies of specifications, standards, drawings, and publications required by contractors in connection with specific procurement functions should be obtained from the procuring activity or as directed by the con

7、tracting of- f icer * ) 2.2 Other publications. The following documents form a part of this specification to the extent specified herein, the issue in effect on date of invitation for bids or request for proposals shall apply. Unless otherwise indicated, National Bureau of Standards Publications Han

8、dbook H28 Screw Thread Standards for the Federal Services (Application for copies should be addressed to the Superintendent of Documents, Government Printing Office, Washington, D. C. 20402. ) 3. REQUIREMENTS 3.1 Description. Torpedo Test Set Mk 393 Mod O (LD 539994) is primarily intended for use in

9、 checking the communication link of Torpedo Mk 37 Mod 2. The unit, which applies command signals to the torpedo through the weapons wire guidance system, may be used during the actual run of the torpedo or in pre-run and post-run tests. The set incorporates the following functions: (a) It provides a

10、 42 volt (k) dc signal for the activation of the tor- pedo steering controller, (b) It provides a 400 Hertz (Hz), 200 volt signal for the activation (c) It receives signals from the 60 Hz oscillator, located in the tor- of the command search function. pedo, which indicates the torpedos status. O 2 -

11、 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIZ-T-22939B (OS) (d) Lt includes a line simulator network that provides an impedance equivalent to the impedance of the torpedo wire coil, Ffhlch may be inserted in the communication circuit when requ

12、ired. +5 percent for operation, is enclosed in a portable wa?ertight combination case. Dimensionally, the unit (including combination case) is 14 inches long, 9 inches wide, and 8% inches high. The test set, which requires a power source of 115 - volts rms 400 Hz 3.2 General requirements 3.2.1 Prepr

13、oduction sample. Unless otherwise specified in the contract or order, preproduction samples of the test set shall be manufactured using the methods and procedures proposed for the production lot. These units shall be tested as specified in Section 4 herein and are for the purpose of deter- mining, p

14、rior to starting production, that the contractors production methods are capable of producing test sets that comply with the technical require- ments of the contract. See 4.3.1. 3.2.2 Materials. Unless otherwise specified in the contract, requisi- tion, or order, all materials and purchased parts en

15、tering into the final assembly of the test set shall conform strictly to the detailed requirements indicated on the draxqings and specifications in NAVORD LD 539994. 3.2.3 Finishes, coating, construction, and dimensions. Finishes, coat- ings, construction, and dimensions for the test set shall be st

16、rictly in accordance with the applicable drawings , specifications , and publications listed in NAVORD LD 539994. 3.2.4 Moisture, fungus, and corrosion. The test set shall be rendered moisture, fungus, and corrosion resistant in accordance with detail require- ments specified in the drawings and spe

17、cifications listed in NAVORD LD 539994. 3.2.5 Marking. Marking of assemblies, subassemblies , and parts shall be in accordance with the applicable drawings listed in NAVORD LD 539994. 3.2.6 Threads. Unless otherwise specified, all threads shall be in accordance with National Bureau of Standards Hand

18、book H28. The class or fit for threads shall be as specified on the applicable drawings. 3.2.7 Conflicting requirements. In the event of conflict between the documents referenced herein and the contents of this specification, the con- tents of this specification shall apply. 3.3 Definitions. Definit

19、ions applicable to the environmental require- ments of this specification are defined in MIL-T-945. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-22939B(OS) 3.4 Performance and product characteristics, !lhe test set shall meet the following

20、 performance requirements and product characteristics: 3.4.1 The test set shall provide the following voltages across a ter- minating load of 3000 55 percent ohms with the line simulator out of the test circuit: 3.4.1.1 Command steps: -i40 and -40 volts dc minimum. 3.4.1.2 Command search: 185 volts

21、rms minimum, 400 Hz. 3.4.2 The test set shall provide the following voltages measured across a terminating load of 1500 k5 percent ohms with the line simulator network in the circuit: 3.4.2.1 Command steps: +15 and -15 volts dc minimum. 3.4.2.2 Command search: 4.5 volts rms minimum, 400 Hz. 3.4.3 Ri

22、ght step commands (+dc voltage) shall be additive on the com- mand step counter, 3.4.4 Left step commands (-dc voltage) shall be subtractive on the com- mand step counter. 3.4.5 With the line simulator network out of the test circuit, the status light: shall be actuated by application of 5.15 k3.65

23、volts rms, 60 Hz to the test set output terminals. 3.4.6 With the line simulator network in the test circuit, the status light shall be actuated by application of 10.2 8.1 volts rms, 60 Hz to the test set output terminals. 3.4.7 Operating life. The test set shall be capable of meeting operat- ing li

24、fe requirements as specified in MIL-T-945 under section titled “Life.“ 3.5 Environmental requirements. The test set shall be capable of meet- ing the performance requirements and product characteristics specified herein after or while being subjected to the following conditions, when tested as defin

25、ed in Section 4. 3.5.1 Vibration. The test set shall be capable of meeting all the perform- ance requirements and product characteristics of this specification after being subjected to vibration in accordance with Test I of MIL-T-945. 4 Provided by IHSNot for ResaleNo reproduction or networking perm

26、itted without license from IHS-,-,-MIL- T-22939B (OS) 3.5.2 Shock, The test set shall be capable of meeting shock require- ments as specified in Section 4 of MIL-T-945, with nine harmer blows, each equivalent to an acceleration of 50 gravity-units, applied. 3.5.3 Temperature. The test set shall be c

27、apable of meeting temperature requirements as specified in Section 4 of MIL-T-945. Operating temperature limits shall range from +28F to +130“F. 3.5.4 Humidity. The test set shall be capable of meeting humidity re- quirements as specified in Section 4 of MIL-L-945. 3.5.5 Tropical environment. The te

28、st set shall be capable of meeting fungus requirements as specified in Section 4 of MIL-T-945. The test set shall be tested by exposure to 3.5.6 Narine environment. the weather coriditions described in 4.5.6. the test set shall meet the performance requirements specified in 3.4. At the conclusion of

29、 the test, 3.5.7 Serviceability requirements. The test set shall show no damage, after being subjected to conditions defined below, ?hen tested as specified in Section 4. 3.5.7.1 Low order repetitive shock (vibration). The packed test set, after being subjected to the tests specified in 4.5.8, shall

30、 show no damage. 3.5.7.2 Vibration (sinusoidal motion) test. The packed test set, after being subjected to the test specified in 4.5.9, shall show no damage. 3.5.7.3 Free drop test (shock). The packed test set, after being sub- jected to the tests specified in 4.5.10, shall show no damage. 3.5.7.4 L

31、eak test. The packed test set, after being subjected to the test specified in 4.5.11, shall show no damage. 3.6 Cleanup. After final assembly all test sets shall be thoroughly cleaned of loose, spattered, or excess solder, metal chips, and other foreign matter. Burrs and sharp edges as well as rosin

32、 flash shall be removed. 3.7 Workmanship. The equipment, including all parts and accessories, shall be constructed and finished in a manner to ensure compliance with all requirements of this specification. Particular attention shall be paid to neatness and thoroughness of soldering, wiring, impregna

33、tion of coils, mark- ing of parts and assemblies, plating, riveting, machine screw assemblage, welding, brazing, and freedom of parts from burrs and sharp edges. The standards of workmanship exhibited in any approved preproduction sample, subject to any qualification stated in the Governments notice

34、 of approval, 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-22939B (OS) shall be determinative of the requirements of the contract relative to work- manship insofar as not specifically covered by applicable specifications. 4. QUALITY ASSURA

35、NCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the Except as otherwise contract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified herein. specified in the contract or order, the supplier mayuse his own or a

36、ny other facilities suitable for the performance 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 the speci- fication where such inspections are deemed necessary to assure supplies

37、and services conform to prescribed requirements, 4.2 Classification of inspections. Inspection of the test set shall be classified as follows: (a) Preproduction inspection (paragraph 4.5) (b) Quality conformance inspection (paragraph 4.4) (c) Periodic production inspection (paragraph 4.5) 4.3 Sampli

38、ng 4.3.1 Preproduction. A preproduction sample of five test sets, manu- factured in accordance with 3.2.1, shall be subjected to the preproduction tests detailed in 4.5 at an activity designated by the procuring activity. Acceptance of the preproduction sample shall be based on no defects in the sam

39、ple. Further production of the test set by the supplier, prior to the approval of the preproduction sample, shall be at the suppliers risk. 4.3.2 Lot size. Unless otherwise specified in the contract or order, each shipment of units of product shall be a separate “inspection lot“ and may differ from

40、the quantity Specified in the total order or contract. In any event, all units of a single “inspection lot“ shall be made to the same design, with the same materials and manufacturing techniques, and shall be part of one continuous production run. 4.3.3 Periodic production samples, From each succeed

41、ing lot or grand lot of 300 or less that have passed the quality conformance inspection of 4.4 a random sampleof five test sets will be selected for submission to an activity designated by the procuring activity to determine compliance of the samples with the requirements of the contract, specificat

42、ion, and drawings. The test sets shall be considered satisfactory if they meet all specifications and pertinent drawings requirements and withstand the tests 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-22939B(OS) specified in 4.4 and 4.5.

43、 ply with these requirements will result in the rejection of the lot, as determined by the procuring activity. Failure of the periodic production sample to com- 4.4 Quality conformance inspection. Each test set delivered under con- tract shall be subjected to the following tests and examinations. Fa

44、ilure to meet any requirement specified herein shall be consdered cause for re- jection. 4.4.1 Test condition. Unless otherwise specified, the test set shall be subjected to quality conformance tests under the following conditions: 4.4.1.1 Temperature. Room ambient 65F to 95F (18C to 35C). 4.4.1.2 A

45、ltitude. Normal ground. 4.4.1.3 Vibration. None. 4.4.1.4 Humidity. Room ambient to 95 percent relative maximum. 4-4.2 Test and inspection equipment and facilities. The manufacturer shall furnish and maintain all necessary test equipment and facilities and shall provide personnel for performing all q

46、uality conformance tests. The test equipment shall be adequate in quantity and, unless definite requirements are specified, shall be of sufficient accuracy and quality to permit performance of the specified tests. 4.4.3 Test equipment. The following items of test equipment are required to perform th

47、e quality conformance tests set forth in this specification: 4.4.3.1 A 500-volt megohmmeter with full scale of not less than 10 megohms. 4.4.3.2 A voltmeter capable of measuring 400 Hz sinusoidal voltage to an accuracy of 1 percent full scale (10, 30, 300 volt f.s. range.) with an input impedance of

48、 not less than 10 M&(hp 400H or equal). 4.4.3.3 An alternating current power source, single phase variable 100-130 volts rms, 400 Hz +5 percent, total harmonic content 5 percent maximum, single harmonic not to exceed 3 percent. 4.4.3.4 A dc decoupled power supply, variable 6 to 20 volts rms, 60 Hz +

49、5 percent. 4.4.3.5 A voltmeter capable of measuring dc voltage to an accuracy of 53 percent f.s. within the range of O to 100 volts. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- . MIL-T-22939B (OS) 4.4.3.6 A 3000 ohms r15 percent, 10 watts load resistor. 4.4.3.7 A 1500 C5 percent ohm, 10 watts load resistor. 4.4.3.8 An ac voltmeter capable of measuring 115