1、Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-23588C 13 777770b 0303478 L MI-T23588C( OS) DMWINGS Naval Ordnance Systems Cormnand LD 620031 Shipping (Packing) Condition mg 1803636 Transducer, Pressure * PUBLICATIONS Naval Ordnance Systems Cor
2、mnand os 634i Miscellaneous General Ordnance De- sign Requirements (Copies of specifications, standards, drawings, and publications re- quested by the contractors in connection with specific procurement furictions should be obtained from the procuring activity or as directed by the con- tracting off
3、icer. ) 2.2 Other publications. The following documents form a part of this specification to the extent specified herein, Unless otherwise indicated, the issue in effect on date of invitation for bids or request for proposal shall apply. National Bureau of Standards Publication Handbook 128 Screw-Th
4、read Standaxds for Federal Services . (Application for coptes should be addressed to the Superintendent. of Documents, Goverment Binting Office, Washington, D. C. 20402. ) 3. REQUIFBMENTS 3.1 Description. The transducer is a pressure-sensitive device which produces a voltage output proportional to t
5、he external pressure applied to the un5t. The transducer incorporates a pressure-sensitive tube, to the outside of which are bonded resistive strain wire grids in a bridge network. Variations in pressure cause the grids to expand and stretch, changing the resistance. Therefore, each change in pressu
6、re will cause a change in voltage output. 3.2 General requirements * 3.2.1 Data required. No data is required by this specification (other than reports accompanying samples submi.f;ted for preproduction and periodic 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without licen
7、se from IHS-,-,-MIL-T-235C 13 7797 3.3.2 Linearrity, Linearity is the rrraxirmun deviation of %he caibration curve from a straight line drawn between the no-pressure and full-scale pressure ou%puk, compressed as a percentage of the ful-scale output and measured OD increasing pressure only. 3 MIL-T-S
8、3588C( OS) production testing), or by applicable documents referenced in Section 2, unless specified in he contrack or order (see 6.2). 3.2.2 4 volts, 400 t: 12 Hertz (Hz). 3.4.3 Zero drift. Zero drift, due to the application of 8 k .4 volts, scale output at the 15-second period after application of
9、 voltage. After 15 seconds- and for a 5 minute period thereafter, the.zero drift shall not exceed 0.1 percent of full-scale output and shall continue to drop there- after until thermal equilibrium is reached, when tested as snecificed in 4.5.4.2. be 1.95 microvolts plus 15 percent minus LO percent p
10、er volt input per psig. 4O 1- 12 Hz-to terminals 3.-and 4, shall not exceed 0.25 percent of full- 3.404 Output voltage. The output voltage of the pressure cell shall 3.4.5 Zero error. The zero error shall be less than 5 percent of full- scale output. 3.4.6 Maximum nonlinearity. For increasing pressu
11、re, the maximum non- linearity shall be less than plus or minus 0.25 percent of flzll-scale out- 3.4.7 Hysteresis. The difference in outputs obtained by increasing the pressure from O to 500 psig and decreasing the pressure from 500 to O psig shall be within 0.25 percent of full-scale output. 3.4.8
12、Zero return. The zero return after a one minute pressure cycle chasacteris- tics of this specification af%er being tested as in 4.4.1.1. 3.5.1.2 Vibration, operating. The transducer shall show no damage and shali meet all the performance requirements and product characteristics of this specification
13、 during and after %he test specified in 4.4.1.2. 3.5.2 Temperature and humidity 3+5.2.1 High temperature and humidity, nonoperating. The transducer shall show no damage an shall meet all the performance requirements and product characteristics of this specification after being tested as in 4+4.2.1.
14、3.5.2.2 High temperature, operating. The transducer shall be capable of meting all the performance reqerements of this specification while undergaing the test specified in 4.4.2.2. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-23588C (OS) *
15、 3.5.2.3 Low temperature, nonoperating. The transducer shall meet all the performance requirements and product characteristics of this specifi- cation after being tested as in 4.4.2.3. * 3.5.2.4 Low temperature, operating. The transducer shall be capable of meeting all the performance requirements o
16、f this specification while undergoing the test specified in 4.4.2.4. 3.5.2.5 Thermal effect on zero shift. zero shift for thermal equilibrium within the cell shall be less than 0.01 percent of fullscale output per degree Fahrenheit (F) throughout a temperature range of plus 28 degrees to plus 130 de
17、grees F. With input voltage at 8 volts, 3.5.2.6 Thermal effect on sensitivity shift. thermal equilibrium within the cell shall be less than 0.01 percent of Sensitivity shift for full-scale output per degree F throughout a temperature range of plus 28 degrees to plus 130 degrees F. 3.5.2.7 Thermal sh
18、ock. Wetting of the pressure sensing element with water at a differential temperature of 40 degrees F followed by immersion of the transducer shall not change the O psig pressure output by more than 4 percent of full-scale output within immersion. After one minute of immersion, the change shall not
19、exceed 0.5 percent of full scale output. a period of one minute after * 3.5.3 Fungus. The transducer shall meet all performance requirements of this specification after being tested in accordance with 4.4.3. 3.5:;4 Pressure-voltage sensitivity. The maximum time for the output voltage to reach 63 per
20、cent of the final output for any step pressure input, within the range of the transducer, shall be 2.4 milliseconds. 3.5.5 Zero output stability. The transducer output at O psig, with zero unbalance corrected for minimum, shall not change by more than 0.05 percent of full-scale output when the sourc
21、e voltage is varied over the range of 7.76 to 8.24 volts. 3.5.6 Phase relationships. 3.5.6.1 At O psig, the portion of the output voltage that is 90 degrees to the supply voltage shall not exceed plus ox minus 1.5 microvolts output per volt input at 400 Hz. 6 Provided by IHSNot for ResaleNo reproduc
22、tion or networking permitted without license from IHS-,-,-MIL-T-235C 13 977790b 0303503 I m _ - _-_ - - - - MIL-T-23588C( OS) 3.5.6.2 The phase change in output voltage for a given pressure stin- ULus shall not exceed an angle of plus or minus 0.1 degree with respect to the supply voltage. 3.5.6.3 M
23、hen pressure is applied, output terminal1 shall have the same polarity as input terminai 4. 3.6 CemuE. Prior to and after final assembly, au parts, compon- ents, and the assembly shall be thoroughly cleaned of loose, spattered, or excess soler, metal chips, and other foreign natter. sharp edges as w
24、ell as rosin flash shall be removed. Burrs and 3.7 torimanship. The transducer, including all parts and accessories, shall be constructed and finished in a manner to ensure compliance with all requirements of this specification. pata to neatness and thoroughness of soldering, wiring, impregnation of
25、 coils, masking of parts and assemblies, plating, painting, riveting, ma- chine screw assemblage, welding, brazing, and freedom of parts from burrs ana sharp edges. The standards of workmanship exhibited in any approved preproducton sample, subject to any qualification stated in the Govern- men-bs n
26、otice of approval, shall be determinative of the requirements of the contract relative to workmanship insofax as not specifically covered by applicable specif ications Particular attention shall be 4, QUALITY AS-CE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contr
27、act or purchase order, the supplier is responsible for the perform- ance of al1 inspection requirements as specified herein. wise specifie in the contract or order, the supplier may use his own or any other facilities suitable for the performance of the inspection re- quirements specified herein, un
28、less disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necesswy to as- sure supples and services conform to prescribed requirements. Ekcept as other- 7 Provided by IHSNot for ResaleNo re
29、production or networking permitted without license from IHS-,-,-4.2 Classification of inspections. Inspection of the pressure trans- ducer shall be classified as follows: (a) Freproduction inspection (paragraph 4.4) (b) (e) Quality conformance inspection (paragraph 4. 5 Periodic production inspectio
30、n (paragraph 4.4 4.3 Saznping 4.3.1 Freproduction. A preproduction sample of tbee pressure trans- ducers, manufactured in accordance with 3.2.2, shall be subjected to the preproduction tests detailed in 4.4 at an activity designated by the pro- curing activity. on no defects in the sample. the suppl
31、ier, prior to the approval of the preproduction sample, shall be at the suppliers risk. each shipment of wits of product shall be a separate “inspection lot“ and may differ from the quantity specified in the total order or contract. In any event, ail units of a single “inspection lot“ shall be made
32、to the same design, with the same materials and manufacturing techniques, and shalbe part of one continuous production run. Acceptance of the preproduction sample shall be based Further production of the transducer by 4.3.2 Lot size. Unless otherwise specified in the contract or order, * 4.3.3 Perio
33、dic production samples. fiom each succeeding lot of 300 or less that have passed the quality conformance inspection of 4.5, a random sample of five transudcers will be selected for submission to an activity designated by the procuring activity to determine compli- ance of the samples with the requir
34、ements of the contract, specification, and drawings. meet all specification and pertinent drawings requirements and withstand the tests specified in 4.4 and 4.5. sample to comply with these requirements will result in the rejection of the lot, as determined by the procuring activity. The transducers
35、 shall be considered satisfactory if they Failure of the periodic production * 4.4 Preproduction an periodic production inspection. me preproduc- tion and periodic production samples, after satisfactorily passing the qmlity conformance inspections detailed in 4.5, shall be subjected to the following
36、 tests and examinations. Certified inspection data covering the results of preproduction arid periodic production inspections shall be forwarded to the procuring activity. * 4.4.2 Vibration 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-c * * * *
37、mL-T-2358ide an 8$1 .4 volt, 400 4 12 Hz output signal) or equivalent. Dc: excitation may be used Tor * * * * 5.1.2 Level B. Not applicable. 5.1.3 Level C 5.1.3.1 UnLt packaging. The pressure transducer shall be packaged in accordance with Method III of MIL-P-. 5.2 Packing. Packing shall be Level A
38、or Level C as specified (see 6.2). 5,Zl Nuaber of packages per pack. The nuniber of unit packages per pack, for Level. C, shall be as specifled in the contract or order. 5.2.2 LevelA 5.2.2.1 Unit ack. The pressure trmsaucer shall. be packed in accord- 5.2.2.2 Palletizing. F.Jhen specified, Level A p
39、acks shall be palletized ance with LD + 20031 and w be shipped individually in small lots. in accordance wikh la-STD-147, Lod Type XII1 (see 6.2). 5.2 . 3 Level B . Not applicable 5.2.4 Level G. The pressure transducer shall be packed to afford pro- tection against damge during direct shipment fromt
40、he supply source to the first receiving activity for immediate use. with common carrier regulations applicable to the mode of transportation. Containers sha. comply 5.3 Marking., Marking shall be Level A or C as specified (See 6.2) 5.3.1 Normal markings, Level A. Unit packs shall be =ked Ln accor- a
41、nce with the requirements of MIL-Sn-E!g and LD 620031, 5.3.2 NormL maskings, Level. G. Unit packages and shipping containers 5.3.3 Serial nuuhers,. Unit packages and shipping containers shall be 6. NOTES shaU. be marked in accordance trith the requirewnts of MIL-STD-l29. marked Wirt;h the serial nun
42、ibers of %he units contained within. 6.1 Intended use. The trancucer is intended for use in Torpedo Mk 37 Mods O, 2, aSa 3. 6.2 Ordering data. Procurement documents should specify the following: 6.2.1 Procurement Requirements (a) Title, number, and date of this specification. Provided by IHSNot for
43、ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-235C 13 9999906 0303512 2 - - MIL-T-23588C(OS) (b) Any exceptions to this specification. (c) Required level of preservation and packaging (see 5.1). (d) Required level of packing including palletizing (see 5.2). (e) Req
44、uired level of marking (see 5.3) (f) Assigned activity for preproduction and periodic production inspections. (g) Data required other than that specified in 3.2.1. (see 4.4) (h) That additional samples required because of failure of any unit(s) to pass the prescribed periodic production inspections
45、shall be provided and inspected at the expense of the supplier. 6.2.2 Contract Data Requirements. Any data required for delivery in connection with this document shall be specified on a DD Form 1423 in- corporated into the contract. Such data will be delivered as identified on completed (numbered) D
46、IDs (Data Item Descriptions/DD Form 1664) which will be documented in the applicable ADL (Authorized Data List). 6.3 Preparation or delivery criteria. Criteria for use of the proper level of preservation, packaging, and packing shall be as follows: Level A. This level shall be used for those items w
47、hich are to be shipped to indeterminate destinations or stored under indeterminate con- ditions for redistribution anywhere. Level C. This level shall be used only when it is definitely known that the packaged items are to be shipped to domestic installations for immediate use at the first receiving
48、 activity. 6.4 Marginal identification. The margins of this specification are marked with an asterisk * to indicate where changes (additions, modifi- cations, corrections, deletions) from the previous issue were made. This was done as a convenience only and the Government assumes no liabdlity whatso
49、ever for any inaccuracies in these notations. Bidders and suppliers are cautioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to the last previous issue. Custodians : Navy - OS * U. S. GOVERNMENT PRINTING OFFICE: 1974 -713-167/1812 16 Preparing Activity: Navy - OS Project No. 1355-N168
