1、MIL-R- 14864 (MU) AMENDMENT 2 30 May 1972 SUPERSEDING AMENDMENT 1 24 March 1972 MILITARY SPECIFICATION RANGE FINDER, LASER AN/WS-1 This amendment forms a part of Military Specification MIL-R-l4864(MU), dated 2 March 1970. * Page 3: Add paragraph 3.1.1 as follows: “3.1.1 Interchangeability.- The rang
2、e finder shall meet all of the following requirements of this specification without need for selective assembly-of the units and items listed in a through i of 3.1. They shall be interchangeable such that replacement of any single item or random com- bination of items of the system permits the syste
3、m to operate and perform to the requirements of this specification. No incompatibility shall exist between the item replacement and the mechanical interface/fits or electric- al functions of the range finder.“ Page 3 - Table I, Item 1.12: Delete.“240“ and substitute “1800“ and for Item 1.13: Delete
4、“620“ and substitute “2700“. Page 8: Renumber the following paragraphs: TO - FROM 3.3.2.1 3.3.2.1.1 3.3.2.2 . 3.3.2.2.1 3.3.2.3 3.3.2.2.2 II Page 8: Add the following new paragraphs: * “3.3.2.1 Non-operating conditions.- The laser range finder system shall sustain without damage or deterioration of
5、performance the following envir- onmental exposure when in a non-operating (de-energized) condition. * 3.3.2.1.1 Storage temperature.- The range finder shall meet the require- ments of 3.3.1.3 (except subparagraph (c)(4), 3.3.1.6.1 (max range only) and 3.3.1.11 at ambient temperature (60F to 90F) af
6、ter exposure and thermal stabilization at -80F and +160“F. * 3.3.2.1.2 Humidity.- The laser range finder system shall meet the re- quirements of MIL-STD-810, Method 507, Procedure I after which, the range finder system shall meet the requirements of 3.3.1,3 (except subparagraph (c) (4), 3.3.1.6.1 (m
7、ax. range onIy) and shall accomplish a minimum of 200 rangings in accordance with the reliability demonstration test, para. 4.63-7, FSC 1240 .; Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-R-L4864 (2) 12 7977706 0277666 mr MIL-R-14864 (MU) AM
8、ENDMENT 2 * quirements of MIL-STD-810, Method 509 after which, the range finder system shall meet the requirements of 3.3.1.3 (except subparagraph (c)(4), 3.3.1.6.1 (max. range only) and shall accomplish a minimum of 200 rangings in accord- ance with the reliability demonstration test, para. 4.6.2.7
9、, 3.3.2.1.3 Salt fog.- The laser range finder system shall meet the re- * =.- The laser range finder system shall meet the require- ments of MIL-STD-810, Method 510 after which, the range finder system shall meet the requirements of 3.3.1.3 (except subparagraph (c) (4) 3.3.1.6.1 (max range only) and
10、 shall accomplish a minimum of 200 rangings in accordance with the reliability demonstration test, para. 4.6.2.7. 3.3.2.1.4 * 3.3.2.1.5 Transportability (shock) .- The laser range finder system shall meet the requirements of MIL-STD-810, Method 516, Procedure II after which, the range finder system
11、shall meet the requirements of 3.3.1.3 (ex- cept subparagraph (c) (4) ), 3.3.1.6.1 (max range only) and shall accomplish a minimum of 200 rangings in.accordance with the reliability demonstration test, para. 4,6.2.7. * Fungus.- The laser range finder system shall meet the re- quirement.s of MIL-STD-
12、810, Method 508 after which the range finder system shall meet the requirements of 3.3.1.3 (except subparagraph (c)(4), 3.3.1.6.1 (max. range only) and shall accomplish a minimum of 200 rangings in accord- ance with the reliability demonstration test, para. 4.6.2.7. “NOTE: have to be subjected for t
13、est to meet other enviroimental requirements.“ 3.3.2.1.6 The laser range finder system undergoing testing for fungus does not * 3.3.2.2 Operating conditions.- The laser range finder system shall Gperate without damage or deterioration of performance during the following environmentla exposure. NOTE:
14、 Paragraphs 3.3.2.2.1 and 3.3.2.2.2 (operating .temperature and vibration) were originally numbered 3.3.2.2 and 3.3.2.3 re- spec tively . * 3.3.4 Reliability: The range finder shall have a mean ranging between failure (MRBF) of 5000 rangings. Page 15 and 16, Table V - In the Range (NIXIES) column, d
15、elete toi. Value (+ 5 meters)“ and substitute “(I110 meters).“ * items covered by SQAP.“ * Page 9, paragraph 4.2 at end of 2nd sentence, add: “plus 3 each of all Page 10, paragraph 4.3.2.3, lines 4 and 7: Add Table “IV-B“. * Page.11, Table IV: Characteristic 304: Characteristic 305: Add Characterist
16、ic “306“ as follows: “306. Interchangeability 3.3.1 4.6.2.3“ Change “3.3.2.2“ to read “3.3.2.2.1“ Change “3.3.2.3“ to read “3.3.2.2.2“ 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R- 14864 (MU) AMENDMENT 2 * Page 11: Add Tables IV-A and IV-B
17、 as follows: TABLE IV-A CONTROL TEST 307. Salt Fog 308. Dust 309. Fungus 310. Reliability REQUIREMENT TEST PROCEDURE 3.3.2.1.3 4.6.2.4 3.3.2.1.4 4.6.2.5 3.3i2.1.6 4.6.2.6 3.3.4 4.6.2.7 1 TABLE IV-B CONTROL TEST REQUIREMENT TEST PROCEDURE 311. Humidity 312. Transportability 3.3.2.1.2 4.6.2.8 3.3.2.1;
18、5 4.6.2.9 * Page 12, paragraph“4.4.3“: Renumber to “4.4.5“ Jn Page 12: Add paragraphs 4.4.3 and 4.4.4 as follows: “4.4.3 First Article Testing,- One range finder of the first article sample shall be subjected to- all of the tests in Tables II, III, Interchange- ability Test of Table IV, and fungus a
19、nd reliability tests of Table IV-A; Two range finders shall be subjected to all of the tests of Tables II, III, IV, IV-A and IV-B, except fungus test of Table IV-A, to determine compliance with 4.2. All examinations and tests shall be witnessed by the Government Quality Assurance Representative. or
20、inspection techniques previously applied are subject to change, or an ad- verse change occurs in performance capability or reliability of the range finder, this shall be cause to cease those operations contributing to the change or failure until corrections have been made by the contractor and appro
21、ved by the Government. When manufacturing processes, materials, 4.4.4 Special environment.- One range finder shall be randomly selected by a Government representative at 25%, 50% and 75% completion of the contract production and shall meet the requirements and tests of Table IV-B. * Page 20, add par
22、agraphs 4.6.2.3 to 4.6.2.9 as follows: * “4.6.2.3 Interchangeability.- The Government Quality Assurance Repre- sentative shall select units and items listed in 3.1 or final assembly of 3 range finders by the contractor to determine compliance with 3.3.1 and 3.3.3. Selection shall be as follows: a. U
23、nits and items required to assemble the first range finder shall be randomly selected from a quantity of units and items sufficient to assemble 3 range finders. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-14864 (MU) AMENDMENT 2 b. Units a
24、nd items required to assembly the second range finder shall be randomly selected from remaining units and items. c. The third range finder shall be assembled from remaining units and items, NOTE: Subsequent to final assembly of each range finder, adjustment of PFN voltage, permitted if necessary, wi
25、ll be permitted to obtain the specified output. 4.6.2.4 Salt foq.- Perform this test utilizing the apparatus (chamber atomizers, air supply, and salt solution) specified in Method 509 of MIL- STD-810, in accordance with Procedure I therein, except the range finder shall not be operated during test.
26、ments of 3.3.2.1.3 upon completion of test. The range finder shall meet the require- *- K.- Perform this test utilizing the apparatus specified in Method 510 of MIL-STD-810, in accordance with Procedure I therein. The range finder shall not be operated during performance of tests (Steps 1, 2 or 3).
27、Step 3 may be performed after reaching stabilization in Step 2. Receiver-Transmitter shall be thoroughly cleaned prior to Lasing Operations. The range finder shall meet the requirements of 3.3.2.1.4 upon completion of test. 4.6.2.5 Window of T: 4.6.2.6 Fungus.- Perform this test utilizing the appara
28、tus specified in Method 508 of MIL-STD-810, in accordance with procedure I therein, with the unit non-operating during test. Range finder shall meet the require- ments of 3.3.2.1.6 upon completion of test. J; 4.6.2.7 Reliability.- A reliability demonstration test shall be con- ducted as a part of Fi
29、rst Article Testing to assure the requirement of para. (3.3.4) at a 90% confidence level. A minimum of 200 rangings on each sample range finder shall be accumulated afterlduring exposure to the non-operating/ operating environments paragraph 3.3.2. Additional rangings are required at 75 f 15F in ord
30、er to accumulate a minimum of 3000 rangings on each sample range finder, The sample range finders shall be tested until the total rang- ings (11,500 minimum) satisfies the following relationship or until 6 failures have occurred or 47,000 rangings (maximum) have been accomplished: Where: T = Total a
31、ccumulaeed rangings of sample range finders k“ .90 1 2 (r+l) = Chi Square Lower 90% Confidence Level with 2(r+l) degrees of freedom r = Nudfer of mission failures 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R- 14864 (MU) AMENDMENT 2 * 4.6.2
32、.7.1 Data collected will consist of all equipment malfunctions, number of rangings completed when malfunction occurred, the nature and cause of the malfunction time required to correct the malfunction, and the required corrective action. * 4.6.2.7.2 Failure definitions.- Any malfunction which render
33、s the range- finder inoperative or operative outside the Limits of this specification-for the determination of chargeable reliability failures, the following clarifi- cation shall apply: a. Upon failure analysis (to determine the cause of any malfunc- tion) it is determined that an “assignable cause
34、“ (related to: Manufactur- ing process, procedures basic design weakness, etc.) was the factor which caused the occurance of the malfunction, the malfunction will &be charge- able as a reliability failure. However, the correction to the manufacturing process, or procedure (et al) shall be accomplish
35、ed and the testing resumed at the environment at which the malfunction occurred. b. Upon failure analysis no assignable cause is evident and the malfunction is considered random in nature, the malfunction shall be a “chargeable“ reliability failure and as such must be considered in the above demonst
36、ration equation (4.6.2.7). 4.6.2.8 Humidity.- Perform this test utilizing apparatus specified in Method 507 of NIL-STD-810, in accordance with Procedure I. Reverse steps 7 and 8. Operational tests are to be initiated within one hour after remusa? of range finder from chamber. Range finder shall meet
37、 the requirements c.- 313.2.1.2 (Step 8) except reliability demonstration test (200 rangings) :i not required after first article approval. fc 4.6.2.9 Transportability (Shock).- Perform this test in accordailce with Method 516 of MIL-STD-810, Procedure II. Range finder shall meet the requirements of
38、 3.3.2.1.5 upon completion of test except reliability demonstra- tion test (200 rangings) is not required after first article approval. 9: cate where changes (additions, modifications, corrections, deletions) from the previous issue were made. This was done as a convenience only and the Government a
39、ssumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the require- ments of this document based on the entire content irrespective of the mar- ginal notations and relationship to the last previous issue.“ The margin of this specification is marked with an asterisk to icdi- Custodian: Army - MU Preparing activity: Army - MU Project No. 1240-A368 * U. S. GOVERNMENT PRINTING OFFICG 1972 -7144351216 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
