ARMY MIL-A-13479-1954 ANEMOMETER ML-497( ) PM《ML-497() PM风力表》.pdf

1、Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-u. s. ARMI . 19-10 . Filler, Interior Packing, Fiberboard, Corrqated I I i. 1 . Sin one range of O to 8 miles per hour in 0.2 mile

2、per hour greduacions and the other ranze of O to 40 miles per hour in 1 zile per hour graduations. is desiped for hand or tripod use. indicating wind direction. in accordonce with the invitation for bids, will be available for instec%ion by prospective bidders end will be lent to the contractor. men

3、t shall conform to the following: The equipment It includeci an integral wind vane ndacompass for 3.2 Procureioefit model.-The procurenent model shall be understood as the one which, Unless otherwise syecified herein, the equip- . 3.2.1 Constxcti.z.-Conctrction of thp: equipment shall conform to the

4、 procurement mode 1 . 3.2.2 Functions.:The equipent shall Incorporate all functions provided by the procurement model 3.2.3 Perfom3nce.-Perfonnance of the equipwnt shall be at least equal to that Of the procurement nodel. not spccified herein, the following shall apply: As soon as the procurement mo

5、del is received by the contractor; he shall adjust it for opt- performance au3 prepare to conduct all measurements necessary to detemine the performance characteristics which ere not specified herein. The contracting officer shall be notified of the dote when the measurements are to be taken, suffic

6、iently in advance to enable his representative to witness them. Meocurcments shll be taken by the contractor and three record copies thereof furnished to the contracting officer. When any perfornonce characteristic of the procurement model is 3.2.4 Exceptions- to procurenent model.- 3.2.4.1 Wind spc

7、ed indicating scale.-The wind speed indicating scale shall indicate miles pc3r hour. 3.2.4.2 Orifice plate.-The orifice plate shall be modified to provide full scale readings at 8 end 40 miles per hour. 3.3 Preproduction samples.- 3.3.1 Quantities.-Two complete equipmats shall be furnished for Gover

8、nment nsgectoz end approval. 3.s.2 Conpliance with specif led requirements - 3.3.2.1 Preprotiction samples shall meet specified requtriaments, shsU be made an8 asembled by tools and methods that will be used for quaatity production, end ohall be occccPpontdd by a otateipent to th8t effect. 3 Copyrig

9、ht Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Spec xo i XL-A-13479(sia.-She preproduction samples shall 5e eccomponied by test dote sho cwplionce with specified pcrformance. The test e

10、nt to the grou? A inspection and nondestructive grou? B inspection opecified in toblos IV and V respectively, and to the preproduction inspection specified in table I. Unlisted non-destructve inspection on preproduction samples may be performed to detemine compliance Kith specified requirements. Pre

11、production inspection will nomlly be performed in this order: (1) vibration, (2) bounce, and (3) shock, drop; other pre- production inspection my precede follow, or be interspersed between the foregoing. 3.3.4 Preproduction insFection. -Prepzoduction samples may be subjected by Che Inspection Requir

12、ement Paragraph Tes% Paragraph Bounce Zoioturo-resistance 3 *5 Tempero ture 3.5 o2 ophion regarding interpretation of roqulremento. . 3.4 Pnrts, materials, end processes; gim?ral.- I 3.4.1 selection.-Itams (parts, amteriais, end procemes)sh be 6uh ea % 6128ble the equipent to neet te performance end

13、 other requirerirainia, ao deocrbe herein. *. ,.- 4 . .- “ Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Copyright Communications - Electronics Command Provided by IHS under lic

14、ense with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-f i threaded fasteners sholl be selected in tic following order of preference: 3.4.5.2 Securin? of ports by thrcaclc2 fostcncro.-b:cans used for secur- prto by I (a) Throwh-screw nndbchut. A common nut a

15、nd lockwasher conbination is not occcptable. i 1 I (b) Screw In topped hole, with split spring. lochsher undcr the head of the screw. (c) Glyceryl-phthnlote oUcyd-resin cement, General Eledtricol Glyptol Red Enamel No. 1201 or equal, applied around the screw hend, where either of the foxegoin Teans

16、is brprac- ticable becauee of electric01 considerations. I* - Locknuts shall be as made by the Elastic Stop Nut Company, Union, Xew Jersey, or equal, ond shall have nylon inserts. However, lochut6 shall be of the all-metal type whcn their tonperature my exceed 250 degrees F. under specified service

17、conditions for the equipment or when tho locknuts are subjected to tht tcqxrature or hiaher for a period or more tiun . b5 minutes during fabrication of the equipxnt (os during baking of paint.) (a) Tapped bushing, nut, or insert that is permanently secured to the structure, where frequent disassemb

18、ly and reassembly wiil be required. be used unbr the hcod of the bolt unleoo the shape of tho hood in ouch tlmt tho flat wooher io umocooory. . (e) Tqpcd hole protected against weor from troquent dis- assembly and reassembly by “Hell-Coilll tlirood inserts as mode by the Reli-Coil Corporation, Danbu

19、ry, Connect- icut, or equal. (d) Stud in a topped hole. Thc tapped hole shall be of a coarscr pitch than the free en8 of the stub-and shall be such that maximum possible strength is provided to hold the stud. (b) Through-bolt secured by a locknut. A flat washer bll i h ! I 3.4.5.4 Xountin,y or assem

20、bly of brittle mterial.-Brjttle castings, or parts made of I ceramic or other brit%le material, shall nLri ceramic materials shell not be emgloyed for assembly or mouthg or phs, I / - 6 . -. Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reprod

21、uction or networking permitted without license from IHS-,-,-Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Copyright Communications - Electronics Command Provided by IHS under li

22、cense with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I 3.6 . 6 Wind speed correcli Ane

23、noncter 2eaurcmnt of. wind-npeed Accuracy of wind-indicatio Sensitivity to win-speed Somit1vil;y to wind- direct ion ed major. .Test Parqrrrph 4.3 4.4 4.5 4.6 4*7 I I Minor AwII XOTi3: Alternate - test procedures.-The contractor my submit for approval to the con- tracting officer detailed alternate

24、teat procedures for the Group A inopections uoing tst equipment and methods differat from those specified in the specification. alternate test proceduree are approved by the contracting offlcer in writing, they ohtall be used instead ofathose specified in this specification. If the 4.1.2 ., c Group

25、B inspection.4roup B inspectlon shall be in aceordance with table V. 4.1.2.1 Order of inspection within group B.lOroup B inspectioa shall be perfomd n tn any orderAloc;onic:i fit, oosc nuts on screws, mrltiny, npplicotion of specific LropicnlizUtion treatments, and niocclaicous dcfccts . Controlo an

26、d fastening dcvlcca - to delcrzinc coqlionce with 305 on Aae Drop Tester, or equal; a Conbur Tes.ter- (l-demee inclined plane) , or equcl; or a basket-type penduluni tester. The floor or barrica* receiving the inpact shall be 2 inch fir, backed by concrete or a rigd steel frai Drop8 4e,lei, Test pro

27、cedure.-The equipment will be tested as follows: (o) Xeasure performance to establish standards of performance before placing equipment in hwidity chamber. (b) Dry at UO f 5 F for 24 hours. (See 4.11.2). (c) Condition at 77 * 5 F and 79( SiL-497( )/PM Shee t is0 6.3.2 -,siver of prcprbduction ann:pl

28、cs. -When itcmo for wiiich prcproduction 3113 ore rcquircd ore currciitly in production on 3 Covcnmcnt ordcr, the contractor msy opsly to the contracti production of the itco under the new ordor will bc concurrcfit with, or follow without interri:,tion, production on the current ordcr; 6nd current p

29、roduction is In strict cornpliUncc with specified requirements for the new equipment, or describing any dkvLations authorized on the current order, Waiver of preproduction samples may be contingent or renegotiation of the contract to reflect tho caving in cost to the contractor. 6.4 Ioxnc1aturc.-The

30、 parentheses in the nomenclature will be deleted or replaced by o letter identifying the particular design, for exsm?le, ML- posslble after the award of contract, the contrabtor should apply to the contracting officer for such information. (Seetl.1.) “ . W/PM. As soon as IIOTTCE: other Vian in conne

31、ction with a definitely rehted Government procururoent operation, the Cnited Stetes Goverment thereby incurs no responoibility nor any obligation whctoocver; and the fact that the Government may hove formulated, furnished or in any my .,upplioh the said rewngs, 8peclfications, or other data is not t

32、o be regarded by iroglication 01 otherwise as in any manner licensing the holder or any other person or cor2oration, or convesng any rights or permission to manufacturo,.use or sell any petented hvention that may n any my%e related thereto, . When Governmen2 drawings, specifications, or other do& are used for ony purpose * c Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-