1、 -. _. niL-P-r566 33 7777906 0323680 3 m K 1 MIL-P-48566 (MI) 9 April1976 MILITARY SPECIFICATION PERISCOPES, TANK: 11747126 and 11747127 This specification is approved for use by all departments and agencies of the Department of Defense. 1. SCOPE 1.1 This specification covers two types of infrared b
2、inocular instru- , ments known as Periscope, Tank: 11747126 and Periscope, Tank: 11747127. I Both are similar except that Periscope 11747127 has an extended body. 2. APPLICABLE DOCUMENTS * 2.1 The following documents, of theaissue in effect on date of invitation for bids or request for proposal form
3、 a part of this spec- ification to the extent specified. SPECIFICATIONS MILITARY MIL-F-13926 MIkP-14232 MIL-1-45607 STANDARDS Military MIL-STD-105 MIGSTD-109 MIL-STD-202 DRAWINGS Fire Control Material: General Specification Governing the Manu- facture and Inspection of Parts, Equipment and Tools for
4、 Amy Materiel, Packaging and Packing of Inspection Equipment, Acquisition, Maintenance and Disposition of Sampling Procedures and Tables for Quality Assurance Terms and Definitions Test Methods for Electronic and Electrical Inspection by Attributes Component Parts US . . Army, Frankford Arsenal F729
5、7923 Adapter, Pressure Tester (Periscope:11747127) F7560062 Adapter, Pressure Tester (Periscope:11747126) F7560189 Fixture, Final Inspection A7561204 F7680673 Fixture, Pressure Testing 30 KV D.C. Power Supply W/E THIS DOCUMENT CONTAINS /a PAGES. . . s Provided by IHSNot for ResaleNo reproduction or
6、networking permitted without license from IHS-,-,-F11747126. F11747127 Periscope, Tank: 11747126 Periscope, Tank: 11747127 PACKAGING DATA SHEET / c PS 11747126 Packaging of Periscope, Tank:11747126 . PS 11747127 Packaging of Periscope, Tank:11174127 3. REQUIRDENTS 3.1 Fabrication.- The periscopes sh
7、all be manufactured in accordance with.Drawing Fl1747.126 for Periscope, 11747126; or Drawing F11747127 for Periscope 117.47127, and drawings pertaining thereto. , -I 3.2 General specifications.- The contractor shall be responsible for adherence to, and compliance with, the following requirements of
8、 specification MItF-13926: a. Order of precedence ab. Dimensions and tolerances C. Inorganic protective surface finishes d. Electrical and electronic assemblies Part idcntif ication and marking f. Workmsnship 3.3 Storage temperature.- The periscope shall ohow no evidence of . . e. physical failure a
9、fter exposure to -70F (-56.,7OC) and +16O0F (71.loC). Each exposure shall be for a minimum of three hours. exposures the periscope shall meet the requirements of this specificatlon while stabilized at a temperature between +6OoP (15.6OC) and +90F (32.2%). 3.4 Vibration.- Prior bo vibration the peris
10、cope shall meet the requirements of 3.10.3. The periscope shall then be vibrated in a vertical plane at a constant frequency of 30 cyclesper second, with an amplitude of 0.0625 Inch (1.59 um) 0.125 inch (3.17m) total excursion 3, for a period of 5 minutes 515 seconds. 3.5 Post-vibration;- Subsequent
11、 to vibration the periscope shall show no evidence of physical failure, The periscope shall again meet the require; .mente of 3.10.3, except that the divergence value shall be within IOminutes, and the dipvergence value shell be within 5 minutes ofthe values established prior to vibration (see 3.4).
12、 Subsequent to both . 3.6 Sealing.- The periscope, without head assemb y, shall show no evidence of leakage in NONE MAJOR: AQL 1.0% Defective - NO 101. 102 . 103. 104 . - L 105 . 106. 107 . 108. . 109. 110. 111. , CHARACTERISTIC REQUIREMENTS Collimation, pre-vibration 3.4 Yibrat ion 3.4 Collimation,
13、 post vibration 3.5 Physical failure, post vibration Sealing Cleanliness Eyepiece focus Resolution Collimation Collimation change due Paraxial imagnif ication to electron image shift - 3.5 3.6 3.8 3.10.1 3.10.2 3.10.3 3.10.4 3.10.5 TEST PROCEDURE 4.6.2 4.6.3 4.6.4 4.6.5 4.6.6 4.6.7 4.6.9.1 * 4.6.9.2
14、 4.6.9.3 4.6.9.4 4.6.9.5 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-112. hge tilt . 3.0.6 . 4.6.9.5 1-13. Image steadinero 3.10.7 . 4.6.9.7 ._ - MINOR: NONE - NOTE: The tests in TableI shall be conducted ata taperature between and +90F. (15.6
15、and 32.2“C). . 4.3.3 Acceptance and .rejection.- Rejected lots shall be screened for all defective characteristics. units and resubmittance.of rejected lote shall be in accordance with “Acceptance and Rejection“ as specified in MIGSTD-105, Removal or correction of defective . 4.4 Special sampling. 4
16、.4.1 General.- One periscope shall be selected at random as a special sampling from each 100 produced. quirements and tests in Table II. The sample shall meet the re- TABLE II - CLASSIFICATION OF DEFECTS NO. CHARACTERISTIC REQUIRFMENT TEST PROCEDURE 301. Fabrication 3.1. Applicable drawings - and ep
17、ecifications- visual visual MIL-F-13926 - 302. General specification 3.2 . 4.4.2 Electrical.= Electrical examination and test8 shall be conducted prior to final sealing of the periscope. being procured, shall be selected at random from each 50 produced, or from each months production, whichever occu
18、rs first. requirements and tests in Table III. Three periscopes; of each model Each sample shall meet the / TABLE III - CLASSIFICATION OF DEFECTS - NO CHARACTERISEIC REQUIREMENT TEST PROCEDURE 303. Ground potential 3.9.1 4.6.8.1 . 304. Dielectric strength 3.9.2 4.6.8.2 NOTE: +66“ and +90F (15.6“ and
19、 32.2“C). shall be selected at random from each 50 produced, or from each months production, whichever occurs first. and test for Characteristic 305 shall subsequently meet the requirements and test in Table I. The tests in Table III shall be conducted at a temperature between 4.4.3 Environmental. -
20、 Three periecopes of each model being procured Each sample that meets the requirement . . 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-, MIL-P-48566 (?U) TABLE-i?! - CL7 I ._ 4.6.7 NOTE: and + 160F (71.1OC). a temperature between,+6O0 and +9OoF
21、(15.6 and 32.2OC). The test for Characteristic 305 shall be conducted at -70OF (-56.7%) The test for Characteristic 306 shall be conducted. at 4.4.4 Failure of sample.- Should any one item 0f.a special sampling . fail to meet the-specified test requirements, acceptance of the represented inspection
22、lot shall. be suspended by the Government until necessary correc- tions have been made by the coitractor and resubmitted samples have bgen approved (see 4.3.3), L . 4.5 Inspection equipment.; Except as otherwise proviaed for by the contract, the contractor shall supply and maintain inspection equipm
23、ent. G. accordance with the applicable requirements of MIL-1-45607. 4.5.1 Government furnished inspection equipment.- Where the contract provides for Government furnished .test equipment, supply and maintenance of test equipment shall be in accordance with the applicable requirements specified in MI
24、L-1-45607 4 . 5 , 2 . Contractor furnished 5nepection equipment. 4.5.2.1 Government design.- Unless otherwise specified in the con- tract, all inspection equipment specified by drawing number in specification or SQAP forming a pert of the contract shall be supplied by the contractor in accordance wi
25、th technicl data listed in the Cechnical data package (TDP). 4.5.2.2 Contractor design.-. In the absence of Government inspection equipment designs ment. compatible with the “Tes t. Methods and Procedures“ specified in 4.6 of this specification and with,the component inspection procedures specified
26、in “Examination“ .and “Test Facilitlaes! requirements of MIL-F-13926. Since tolerance of test equipment is normally considered to be within 1OX of the product tolerance for which it- is intended, this inherent .error in the test *. equipment design mist be considered as part of the prescribed produc
27、t tole- rance lMt, Thui, concept, construction, materials, dimensions and tole= rance used in the design of test equipment will reliably indicate accepta- bility of a product which does not exceed 9OX of the prescribed tolerance limit, and permit positive rejection when non-conforming. be such as to
28、 facilitate routine calibration of test equipment. the contractor shall design and supply inspection equip- . Construction shall 4.6 Test methods and procedures 4.6.1 StoraRe temperature.- The testing equipment utilized in this test shall be in accordance with the “Test facilities“-requirements of M
29、IGP-13926 and the conitions of 3.3, the test chamber and the temperature of the chamber reduced gradually The periscope shall be placed in I 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-, MIL-P-48566(MU) (see Note below) to -70F (-56.7OC). tempe
30、rature for a minimum of 3 hours. period, the temperature of the chamber shall be gradually raised (see Note below) to +160F (71.1OC). temperature for a minimum of 3 hours. period, the temperature of the tept chamber shall be gradually reduced to an ambient temperature between together with Drawing F
31、7297923, Adapter for Periscope 11747127 or Drawing F7560062, Adapter for Periscope 11747126 shall be utilized for the applicable periscope under test. 8 The Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-48566 (MU) test procedure for performin
32、g the sealing test shall be as detailed in the operating-instructions on Drawing F7680673. conform to the sealing requirements of 3.6. The sealing test shall be performed subsequent to the final sealing of the periscope. Procedure I of Specification MIL-F-13926. rainfall the periscope shall be secur
33、ed in itsusing position, and the high voltage connector shall be sealed against moisture penetration. Immediately following the specified exposure the head assembly shall be removed, and the cavities in the top of the body shall be inspected for moisture penetration. The periscope shall conform to t
34、he requirements of 3.7. inspection, the external surfacs of the periscope may be dried by compressed air or blotting with water-absorbing material prior to removal of the head assembly. be thoroughly dried. The periscope shall 4.6.7 Rain test.- This test shall be conducted in accordance with . . Whi
35、le exposed to the simulated . To facilitate Upon completion of this test the periscope shall 4.6.5 * Cleanliness . -. 4.6.7.1 Defects.- This test shall be performed with the periscope deenergized. view by reflected light the glass components of the head assembly, objective assembly and eyelens assem
36、bly. technique of shadowing. . Utilizing two 15 watt fluorescent lamps, desk or bench tube, The periscope shall meet the cleanliness require- The method of inspection shall be by the *ment6 of 3.8.1. 4.6.7.2 Dirt.- This test shall be performed with theperiscope ener- Prior to the inspection for dirt
37、 the image tubes shall be permitted gized. a stabilization (“warm-up“) period of 15 seconds. The screen surface of each image tube shall then be visually inspected through the appropriate eyepiece for evidence of dirt, The periscope shall meet the cleanliness requirements of 3.8.2. image tube shall
38、not be considered dirt. prior to final sealing of the periscope. “Cold“ and “hot“ spots on the screen surface of the 4.6.8 Electrical.-. Electrical examinations and tests shall be conducted 4.6.8.1 Ground potential.- Standard measuring equipment shall be utilized for this test. The periscope shall c
39、onform to the requiremehts Of 3.9.1. 4.6.8.2 Oielectric strength.- Conduct this test in accordance with Method 301 of Standard MIL-ST-202, with the image converter tubes installed in the periscope, and the ground leads connected. source that conforms to Drawing A7561204 shall be utilized to supply t
40、he voltage for this test. ble examination shall be conducted on the periscope circuits for evidence of grounding. shall be subjected to a vieual examination for evidence of insulation breakdown and damage due to corona. requirements of 3.9.2. . - F7460189 shall be utilized in testing the performance
41、 characteristics of the periscope. requirements of 3.10, and shall be supplied by a high-voltage power source A high-voltage power During test voltage application a visual and audi- Subsequent to voltage application the periscope circuits The periscope shall conform to the 4.6.9 Performance.- Specia
42、l testing equipment that conforms to Drawing The voltage applied to energize the periscope shall conform to the I 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I I * , . ? MIL-P-485bb 13 9 9999406 0321689 T mi .- , that conforms to Drawing A75612
43、04. The high-voltage power source shall hatre a 2 minute warm-up period prior to applying the operating voltage to the periscope, All performance teotr rhall bo conducted oubsequent to final sealing of the periscope. 4.6.9.1 Eyepiece focus.- A Calibrated dioptometer having a magnifica- tion of at le
44、ast three power (3X) shall-be utilized for measuring the eye- piece focus of.each optical system in the periscope. diopter scale to zero, and adjuet the dioptometer eyepiece for best focus of the dioptometer reticle. the pertscope, $TJ turn, and obtain best focus of the phospor grain on the screen o
45、f the irnage tube by adjustment of the dioptometer diopter scale. best focus, ia each optical system, within the diopter tolerance specified in 3.10.1, as measured on the dioptometer diopter scale. . 4.6.9.2 Resolution.- Perform this test in sequence to the test for eyepiece focus, Focus the dioptom
46、eter by means of the diopter scale adjust- ment, and obtain correct line count of the resolution target image in all four-meridians. Resolution of the target image, in all four meridians, shall be obtained within 1/8 diopter of the measured eyepiece focus-value obtained for the eyepiece ia the pe_ri
47、scope. The resolution of each optical systdin the periscope shall conform to the requirements of 3.10.2. 4.6.9.3 Collimation.- Perform this test uith the lower collimators in position at the periscope eyepieces, . 4.6.9.3.1 Divergence.- Divergence of 3 degrees 11 minutes is built into“ the lower col
48、limacor assembly of the testing equipment when it is calibrated in accordance with the Set-up instructions on Drawing F7560189. The amount of divergence greater than, or less than, 3 degrees 11 miautes shall be measured by means of the horizontal scale divisions on the center of the reticle in the l
49、ower collimator, with respect to the vertical reticle line in the upper collimator. The scale divisions represent 10 minutes of arc, for a total of 40.minutes of arc on each side of the vertical reticle line. Adjust the lower gimbal mounting to obtain coincidence of the centers of the lower and upper right collimator reticle patterns. Read the amount of divergence greater thaa, or less than, the established 3 degr
