1、 .- MIurpARY SPECIFICAPION 3 I MEL-o-23560 (os) 2 December 1969 Superseding 30 December 1965 . 1-0-2356OB( WP) .! -. . . . - I. - . -. .I _- . OSCmRA*B, GENERAL SFECIEICATON FOR : 1 -.,. _ .a. - This specification has been approved by the Naval Ordnance Systems Conmiand, Department of the Navy - z .
2、 . - . - .- - - . ._ - - .i . I .- _. .- .- -. i SCOPE : . . 1.1 Scope. This specification covers the requirements for the design and procurement of Oscillographs, NAVORD Drawings 815515, 313 ready nonoperatin;. The oscillograph, when rigidly mounted on its mounting base to a vibration device by nor
3、m1 means shall withstand the. vibration requirements specified in 4.4.1.1 and theresfter shall show no damage and shall meet all performance requirements of this specif ication. 3.5J.2 Vibration; operati%. The oscillograph, when rigidly mounted on its mounting base to a vibretion device by nomal mea
4、ns, shallwith- stand the vibration requirements of 4A.1.2. qp Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL 0-23560( OS) 3.5.2 Shock ? 3.5.2.1 Shock; transportation, storage, and handling, (For Level CI only). The oscillograph, packaged as in S
5、ection 5, shall withstand the rough handling test of MIL-P- and thereafter shall show no damage and shall meet all performance requirements and product characteristics of this specificat5on. 3.5.2.2 Shock; ready nonoperating. The oscillograph, when rigidly mounted on its nountins; base to a shock te
6、sting device by normal means, shall withstand the shock requirements of 4.4.2.2 and thereafter shall show no damage and shall meet all performance requirements of this spec- ification without readjustment or repositioning of components, 3.5.3 Temperature and humidity; nonoperating 3.5.3.1 Low temper
7、ature. The oscillograph shall be capable of with- standing a temperature of minus 65 degrees F for a period of 48 hours without showing any adverse effects. The unit shall then be brought to ambient. temperature and humidiky conditions and shall meet all the per- formnee requirements and product Cha
8、racteristics of this specification. 3.5.3.2 High temperature. The oscillograph shall be capable of with- stal-ding a temperature of plus i65 degrees F with a relative humidity of ?c! to 95 percent for a period of 48 hours. to ambient temperatu= and humidity condit5ons and shall meet all the performa
9、nce requirements and product characteristics of this specification. The unit shall then be brought 3.5.4 Temperature; operating 3.5.4.1 Low temperature. The oscillograph shall be conditioned to a temperature of O degrees F and, while at this temperature, shall function according to specifications wi
10、khout showing any adverse effects. 3.5.h.2 High t.emperature. The oscillograph shall be conditioned to a tmperat-ure OF plus i30 degrees F with a relative humidity of 90 to 95 perem%. to spxifications without showing any adverse effects. While at these test conditions the unit shall function accordi
11、ng 3.5.5 Acceleration. The oscil2ograph, when rigidly mounted on an ac- celeration device, shall withstand an acceleration of i5 plus or minus 2 gs for a period of not less than 0.2 second nor more than i5 seconds in each direction along the three axes defined in 3.3.6, shall function during and aft
12、er acceleration tests and thereafter shall show no damage and shall meet all performance requirements of this spec- ification, The oscillograph 12 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1-0-23560(:( OS) 3.6 Operating life. The oscillograph s
13、hall be capable of withstanding at least 5QO operation cycles without maintenance, except for lamp re- placement. A cycle is defined as an operating period of 10 minutes plus or minus 1 minute, followed by a rest period of 10 minutes plus or minus 1 minute. 3.6.1 The film magazine shall be capable o
14、f being loaded and unloaded 500 successive times and shall show no damage and shall meet all the per- formance requirements and product characteristics of this specification. 3.7 Cleanug. Prior to and after final assembly, all parts, components, and the assembly shall be thoroughly cleaned of loose,
15、 spattered, or ex- cess solder, metal chips, and other foreign matter. Burrs and sharp edges as well as rosin flash shall be removed. 3.8 WorlananshiE. The equipment including all parts and accessories , shall be constructed and finished in a manner to ensrire compliance with all requirements of thi
16、s specification. Particular attention shall be paid to neatness and thoroughness of soldering, wiring, marking of parts and assemblies, plating, riveting, machine screw assenblies, welding, brazing, and freedom of parts from burrs and sharp edges. The standards of workmnship exhibited in any approve
17、d first article sample, subject to any qualification stated in the Governments notice of approval, shall be determinative of the requirements of the contract relative to workmanship insofar as not specifically covered by applicable specifications. 4. QUALITY ASSURANCE PFOVISIONS 4 1 Responsibility f
18、or inspection. Unless otherwise specified in the contract or purchase order, the supplier is responsible for the per- f ormance of all inspection requirements as specif i therefore, there shall be no sampling for acceptance. Defective units shall be rejected. 4.4 First article and periodic productio
19、n inspection. The first article and periodic production samples, after satisfactorily passing the quality conformance inspections detailed in 4.5, shall be subjected to the fol- lowing tests and examinations. results of first article and periodic production inspections shall be forwarded to the Nava
20、lrdnance Systems Command, Certified inspection data covering the 4.4.1 Vibration. The oscillograph, mounted as specified in 3.5.1, shall be subjected to the vibration testing specified herein. 4.4.1.1 Vibration; ready nonoperating. The oscillograph shall be sub- jected to the v5bration testing speci
21、fied in Schedule I in each of the test axes defined in 3.3.6, and thereafter shall show no damage and shall meet all perforniance requirements and product characteristics of this specification. Schedule I Minimum Test Duration Room - Frequency Range Amplitude Temperature -20F +130“F 10 - 30 cps 0.06
22、0 k0.006 in. 60 min. 15 min. i5 min. 31 - 60 CPS 3g +-0.3g 60 min. i5 min. 15 min. 61 - 100 CS 3g +-0.3g 60 min. 15 min. i5 min. The frequency shallbe continuously varied, between each of the limits given, at a uniform rate over a three to four minute period for the duration of the test. As an alter
23、nate method the oscillograph shall be vibrated at specific frequencies differing by not more than five cps in each of the test axes and covering the entire frequency range and amplitudes of Schedule I. The total test time shall be not less than that of Schedule I and the test times at the specific f
24、requencies shall be equally divided. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-flIL-0-23560C 13 477770b 0303457 7 KIL-O-OC (OS) 4.4.1.2 Vibration, opemting. The oscillograph, rigidly mounted on its mounting base to a vibration device, shall be
25、subjected sequentially to the vibration testing of Schedule I in each of the test axes defined in 3.3.6. range in each axis. The film speed recorded during these tests shall be in accordance with 3.4.4. ments of 4.5.4.6 and 4.5.4.7 upon completion of the test. A film shall be run for the last four m
26、inutes of each frequency The oscillograph shall comply with the require- Schedule II Frequency Range Amplituae Minimum Test Duration 20 - 60 CPS lg fO.lg i5 min. 61 - i50 CC lg +-O. minute at each specific frequency in each axis in the 20 - 60 cps frequency range and for at least 20 seconds at each
27、specific frequency 5n each axis in the 61 - 150 cps frequency range. The film speed recorded during hhese tests shall be in accordance with 3.4.4. 4 5.4.7 upon completion of the test. A film The oscillograph shall meet the requirements of 4.5.4.6 and 4.4.2 Shock - 4.4.2.1 Shock; transportation, stor
28、age, and handling (for Level C only). The oscillograph packaged and packed as indicated in Section 5, shall be subjected to the rough handling test specified in MIEP- and thereafter shall show no damage and shall meet all performance requirements and pro- duct characteristics of this specification.
29、4.4.2.2 Shock; ready, nonoperating. The oscillograph (pype II) mounted as specified in 3.5.2.2, shall be sub.iected to 18 pulses of not less than 8 ms duration and approximating a $-sine wave. shall be applied in each direction along the axis defined in 3.3.6 and shall be of the following mgnitude:
30、The pulses 16 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Ases - Shock Requirements Upon completion of the test, the oscillograph shall show no damage and shall meet all performance requirements and product characteristics of this specification w
31、ithout readjustment or repositioning of components. 4.4 . 3 Temperature and humidity; nonoperating 4.4.3.1 Low temperature. The oscillograph shall be placed within a test chamber whose temperature shall be lowered to a minus 60 degrees to minus 65 degrees F and maintained at this temperature for a p
32、eriod of 48 plus or minus 5 hours. not be energized during this period,) At the end of this period the os- cillograph shall be brought to ambient temperature and humidity conditions and then shall meet all performance requirements and product characteris- tics of thts swcification, 4.4.3.2 High temp
33、erature. The oscillograph shall be placed within a test chamber whose temperature shall be raised to plus i60 to plus 165 degrees F with a relative humidity of 90 to 95 percent and maintatned at this temperature and humidity for a period of 48 hours plus or minus 5 hours. (The oscillograph motor and
34、 lamp circuits shall not be energized during this period.) At the end of this period the oscillograph shall be brought to ambient temperature and humidity Conditions and then shall meet all performance requirements and product characteristics of this specification. Prior to testing the performance r
35、equirements, wiping or air drying may be performed. (The oscillograph motor and lamp circuits shall Drying by heating or baking is not allowed. 4.4.4 Temperature; operating 4.4.4.1 Low temperature. The oscillograph shall be placed within a test chamber whose temperature shall be lowered to O degrees
36、 to plus 5 degrees F. While maintained at this temperature the oscillograph shall be operated and shall meet all the performance requirements and product characteristics of this specification. 4.4.4.2 High temperature. The oscillograph shall be placed within While at a test chamber whose temperature
37、 shall be raised to plus 125 to plus 130 degrees F with a relative humidity of 90 to 95 percent. this temperature and humidity the oscillograph shall be operated and shall meet all the performance requiremnts and product characteristics of this specification. Provided by IHSNot for ResaleNo reproduc
38、tion or networking permitted without license from IHS-,-,- MIL-0-235bOC 13 970b 0303459 2 m m0-23560( OS) 4.4.4.3 Damping, 100 percent. The oscillograph shall be placed in a test chamber whose temperature shall be controlled to give an oscillograph tenparature of 100 degrees plus or minus 3 degrees
39、F. The frequency re- sponse tests of 4.5.4.7.1 shall be performed. percent, 84 percent, 95 percent, and lo5 percent of the nominal natural Irequency shall be applied. with 3.4.5.4 and 3.4.5.4.1, if the deflection at 76, 80, or 84 percent meets the requirements for 80 percent of natural frequency and
40、 if the deflection at 95, 100, or lo5 percent meets the requirements for 100 per- cent of natural requency. In addition, signals at 76 The damping shall be considered in accordance 4.4.5 Acceleration. The oscillograph, rigidly mounted, shall meet the acceleration and test requirements specified in 3
41、.5.5. 4.4.6 Operating life. The oscillograph shall be subjected to 500 op- erating cycles in accordance with 3.6 and shall meet all performance re- quirements upon completion of the test. position and loaded in a manner to simulate actual film drive conditions. The film magazine shall be in k.4.7 Fi
42、lm magazine tests. Load a test roll of film into the filn magazine in position on the oscillograph. A portion of the film shall be in position for normal exposure. All surfaces of the closed oscil- lo6-a2h shall be exposed to a lighted 150 watt bulb for a period of 30 15znitss nininnun. 8uring the t
43、est. reveal no evidence of exposure. The motor and galvanometer lamp shall not be energized At the conclusion of the test the developed film shall 4.4.7.1 Load and unload the film magazine 500 times in succession. The film magazine shall meet the requirements of 3.6.1. be performed as part of the li
44、fe test of 4.4.6). (This test may 4.4.8 Radio noise interference suppression 4.4.8.1 Broadband radiated interference. The oscillographs shall be tested over the AN/URM- range in accordance with Instructions in MIE STD-461, MIL-STD-462, and MIL-STD-463 for radiated interference. The oscillographs sha
45、ll radiate 20 indicated microvolts peak maxim from i5 kilocycle (kc) to 60 kc and will then diminish linearly from 60 kc to i50 kc to a maxirmun of 2.7 microvolts, when plotted on log-log paper. 4.4.8.2 Broadband conducted interference. The oscillographs shall be tested over the AN/uRM-6 range in ac
46、corance with instructions in MILSTD-461, MIbSTD-462 and MIbSTD-463 for conducted interference. The short duration interference does not apply. the same for sine wave and random noise. The maximum indicated micro- volt peak allowed shall be 1000 microvolts at 15 kc decreasing linearly to 100 microvol
47、ts (max) at 50 kc. microvolts mx at 50 kc to a maxim of 30 microvolts at i50 kc, when plotted on log-log paper, The limits are to be Then, decreasing linearly from the 100 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-m-0-23560 ( OS) 4.4.8.3 Oscill
48、ograph hookug. The positive side of the motor drive voltage shall be connected to the ground terminal of the stabilizer. The negative side of the motor drive voltage shall be connected to the shield power source connector of the stabilizer. connector of the stabilizer shall be connected to the negat
49、ive motor drive lead. The positive motor drive lead shall be connected to the ground terminal of the stabilizer. The remaining galvanometer leads shall be open circuits. cally connected to the ground terminal of the stabilizer. minal of the stabilizer shall be connected to earthground as required by MIL-STD-461, mTD-462, and 1Lrn-463. During tests, the film maga- zine shall be in place and driving the film. The s
