1、MIL-F-BLLSOA 13 7777906 0358727 1 /. . . I- .J # * % .I -. . -: . *1 MILITARY CpECIFICACIION -. FILTER, .BANDPASS (NAVORD DWG 1563728) (For Torpedo Wk 37 Mods O, 2, and 3) This specificationhas been approved by the NaVal Ordnance Systems Cmmnd, Department of the Navy 1. SCOPE 1.1 Scope. This specifi
2、cation establishal em- tsiner. stage, while rejecting or shunting to ground ail other frequencies a-plie Lo its input terminals. Its pmose is to pass a nasrow band of frequencies to the next L 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. MIL-F
3、-LL5OA 13 I 777770b 0358727 5 t MIL-F-8U5OA( OS) 3 , 2 General requirements 3,2.1 Data required. No data is required by this specification (other t when measured as specified in 4.4.4.U. circuit (pins 1 and 7) shall be not less than 0.010 ampre, when measured as specified in 4.4.4.4. 3.4.2 Direct cu
4、rrent r parts, camponats, . and the assembly shall be thoroughly cleaned of loose, spattered, or ex- cess soler, metal chips, and other foreign matter. Burrs and shaxp edges, as weil as excessive rosin flash, shall be removed. ! 3.7 WorkaanshQ. “he bandpass filter, including all parts and acces- sor
5、ies, shrzu be constructed and finished in a manner to ensure complhnce with all-requirements of this specification,. Pazticulaz attention shall be paid to neatness and thoroughness Of soldering, wiring, impregnation of coils, marking of parts and assemblies, plating, painting, riveting, machine scre
6、w asseniblage, welding, brazing, and freedom of prts from burrs and sharp edges. The standards of WorkmaJlship exhibited in any approved preproduction sample, subject to any qualification stated in tb Governments notice of approval, shall. be determinative of the require- ments of the contract relat
7、ive to worluuanshp insofar as not specifically covered by applicable specifications. 1 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspecti,on. Unless otherwise specified in the contract or purchase order, the supplier is responsible for the perform- ance of ail inspection requirements as
8、 specified herein. wise specified in the contract or order, the supplier may use his own or any other facilities suitable for the perfomiiance of the inspection re- quirements specified herein, unless disapproved by the Goverment. The Government reserves the right to perform any of the inqections se
9、t forth in the specification where such inspections are deemed necesswy to as- sure supplies and services conform to prescribed requirements. Esrcept as oeher- 4.2 Classification of inspections. Inspection of the bandpass filters shall be classified as follows: (a) Preproduction inspection (paragrap
10、h 4.5) (b) Quality conformance inspection (paragraph 4.4) - (c) Periodic production inspection (paragraph 4.5) -. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-LL5OA 13 = 9777706 0358733 7 - m-81150( os) 4.3 sampling 4.3.1 Preproduction. A
11、preproduction sample of five bandpass filters, manufactured in accordance with 3.2.2, shall be subjected to the prepru- duction tests detailea in 4.5 at an activity desidated by the procuring activity. Acceptance of the preprouction sample shallbe based on no defects in the sample. supplier, prior t
12、o the approval of the preproduction sample, shall be at the suppliers risk. 4.3.2 Lot size. Further produci;ion of the bandpass filters by the Unless otherwise specified in the contract or order, each shipment of units of product shall be a separate “inspection lot“ and may differ from the quantity
13、specified in the total order or contract. In any event, all units of a single “inspection lot“ shall be mde to the same design, with the same materials and manufacturing techniques, and shall be part of one continuous production run. 4.3.3 Periodic production samples. From each succeeding lot or gra
14、nd lot of 300 or less that have passed the quality conformance inspection of 4.4, a random sample of five bandpass filters will be selected for submis- sion to an activity designated by the procuring activity to determine com- pliance of the samples with the requirements of the contract, specificati
15、on, and drawings. they meet all specification and pertinent drawings requirements and with- staar the tests specified in 4.4 and 4.5. Failure of the periodic produc- tion sample to comply with these requirements will result in the rejection of the lot, as determined by the procuring activity, The ba
16、ndpass filters shall be considered satisfactory if . 4.4 Quality conformance inspection. Each bandpass filter delivered under contract shall be subjected to the following tests and examinations. Failure to meet any requirement specified herein shall be considered cause for rejection. 4.4.1 Test cond
17、itions. Unless otherwise specified, the bandpass filter shall be subjected to quality conformance tests under the following con- ditions : 4.4.1.1 Temgeratuse. Room ambient 65 degrees F to 95 degrees F (18.33 degrees c to 35 degrees c). 4.4.1.2 Altitude. Normal ground. 4.4.1.3 Vibration. None. 4.4.1
18、.4 Humidity. Room ambient to95 percent relative, maximum. 7 _- -z Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-B115OA 13 7777Ob 0358734 7 db . MIL=F-UOA( OS). . 4.4,2 Test and inspection equipment and facilities. The manufwturer aha31 furnis
19、h and maintain all necessary test equipment and facilities and shall provide personnel for performing all quality conformance tests. The test equipment shall be adequate in quantity ana, when definite re- quirements are not specified, shall be of sufficient accuracy and quality to pemrLt performance
20、 of the required tests. 4.4.3 Test equipment. The following test equipment is required Lor performing the qWity conformance tests of the bandpass filter: 4,4.3.1 Oscillator: Wesern Electric 17B, or equivaXent. 4.4.3.2 Electronic caunter : Hewlett-Pachd 52lC, or equivalent. 4.4.3 . 3 Voltmeter : Ball
21、antine Model 300, or equivalent . 4.4.3.4 Insulation tester: Radio Frequency -Laboratories Model 84C or 4.4.3.5 Dielectric tester: An instrument that will provide-a 200 plus or minus 10 vdc test potential and a device to inicate a dielectic break- down. equivalent . 4.4.3.6 Resistors: 200,000 ohms p
22、lus or minus 1 percent, 0.5 watt; P-R-iO509 designation RN70B2003J; two required. 4.4.3.7 Power source: i15 volts, 60 Hz single phase. 4.4.3.8 Power supply: 4.4.3.9 Resistor, variable: 4.4.3.10 Milliammeter: Capable of delivering 90 vdc at a load current of 0.01 ampere with less than 3 percent rippl
23、e. watts; MIL-R-94 designation RV2NAXD103.A. 10,000 ohms plus or minus 10 percent, 2 O to 20 madc, plus or minus 2 percent accuracy. 4.4.3.ll Resistor: l50,OOO ohms plus or minus 1 percent, 0.5 watt; MIL-R-10509 designation RN70B1503J. . 4.4.3.l2 Resistor: 180,000 ohms plus or minus 1 percent, O,? w
24、att; MIL-R-10509 designation 701803 J. 4.4.3.13 Resistor: l90,OOO ohms pus or minus 1 percent, 0.5 watt; MIL-R-10509 designation RN70B1903J. 4.4.3.14 Resistor: 210,000 ohms plus or minus 1 percent, 0.5 watt; W-3-10509 designation RN7OB2lO3J. 8 Provided by IHSNot for ResaleNo reproduction or networki
25、ng permitted without license from IHS-,-,-., -.NIL-F-1150A 13 W 7779906 0358735 O m! kk3.15 Resistor: 220,OOO *ohms plus or minus 1 percent, 0.5 watt; MiL-R-lO5O9 designation RN7OB2203J. .4.4.3,16 Resistor: . 250,000 ohm plus or minus 1 percent, 0.5 watt; MIL-R-10509 designation R“jOB2503J. 4.4,3.17
26、 Ohmmeter: Hewlett-Packara Model %lOB, or equivalent. 4.4.3.18. Connectors, test leads, and small tools: As required. 4.4.3.19 Voltmeter:. Input medance li. megohms, shunted by 7.5 plus or Including test leads. percent . Accuracy of reading within 3 4.4.4 Test procedure 4.4.4.i Connect the two voltm
27、eters (4.4.3.3 .and 4.4.3.19), the oscil- lator (4.4.3.1), the -electronic counter (4.4.3.2), the insulation %ester (4.4.3.4), and the dielectric tester (4.4.3.5) to the power source (4.4.3.7)* Set the power. switches of these instruments to ON and allow them to warm up for the time necessary for th
28、em to stabilize. 4.4.4.2 To measure .the dielectric withstanding voltage as set forth in 3.4.10 : 4.4.4.2.1 the bandpass filter and apply i50 plus or minus 10 vdc for a period of one minute. dence of acing, breakdown, or puncture. Connect the dielectric tester (4.4.3.5) to pins 1 and 3 of At the end
29、 of the one minute period, there shall be no evi- 4.4.4.2.2 pins 1 and 5. Repeat 4.4.4.2.1 with the dielectric tester connected to There shall be no evidence of arcing, breakdown, or puncture. 4.4.4.2.3 Repeat 4,4.4.2.1 with the dielectric tester connected to pin There shall be no 1 and the case (mo
30、unting stud) of the bandpass filter, evidence of arcing, breakdown, or puncture. 4.4.4.2.4 Repeat 4.4.42.3 for pins 2, 3, 4, 5, 6, and -7 of the band- pass filter. down. There shall be no evidence of arcing, puncture, or break- 4.4.4.3 4.4.4.3.1 Connect the insulation tester (4.4.3.4) to pins 1 and
31、3 of the bandpass filter and apply 100 plus or minus 10 vdc for a period of two minutes. at a test potential of 100 plus or minus 10 vdc. at least 10,000 megohms. To measure the insulation resistance as set forth in 3.4.9: At the end of the two minute period, measwe the resistance The resistance sha
32、ll be Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-BLLSOA 13 7777906 035873b 2 = - - MIL-F-8L150A( OS) 4,4.4.3,2 Repe,at 4,4.4.3.1 wth the insulation tester connected to gins 1 and 5, 7 and 3, and 7 and 5* be at lead, 10, megohm. stud) of th
33、e bandpass filt Connect the bandpass filter and test equipment (4.4.3) as shown in Figure 2, ensuring that the ground (low side) terminals of the test equipment are connected to pins 3 and 7 of the filter. To prevent stray pickup, careful placement of the leads is necessary. . 4,4,4.6.2 Check the ca
34、libration of the ebectronic counter in accordance When the counter has with the instructions provided with that instrument. been staisfactorily checked, set the controls to measure frequency. co2?tml ?or 1.0 vrms on the output voltmeter (the voltmeter connected be- tk.erz pins 5 and 3 of the filter)
35、. 4.4.4.6.3 Set the oscillator eequency to 7 KHZ and adjust the oxtFuk 10 -* Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_. MIb-ijl-BllSOA( OS) k,b.h.f,.k ACiQuat the oucil.l.ulor J:roqucncy control until the ouUi;pul; voltmetux. indicater. the m
36、axirmun voltage. Record this frcqu6ncy. Then reidJust the oscillator output for 1.0 vrms, as indicated on the output voltmeter . 4.4.4.6.5 Record the indication on the input voltmeter (the voltmeter Maintain this voltage at connected between pins 1 .and 7 of the filter). the filter input until other
37、wiseinstructed. 4.4.4.6.6 Decrease the oscillator frequency below 7 KHz until the out- put voltmeter indication is 3 db below-1 VMILS. Record the frequency indi- cated on the electronic counter. 4.4.4.6.7 Increase the oscillator frequency above 7 KBz until the out- put voltmeter indication is again
38、3 db belowl vrms. indicated on the electronic counter. Record the fYequency . quency recorded in 4.4.4.6.7. band with of the filter. 4.4.4.6.8 Subtract the frequency recorded in 4.4-4.6.6 from the fie- The difference of these frequencies is the The band width sha1l”be 2000 plus or minus 100 %. 4.4.4
39、.7 To measure the center frquency.as set forth in 3.4.5. 4.4.4.7.1 Repeat,the procedures of 4.4.4.6.i through 4.4.4.6.7. 4.4.4.7.2 Add the frequencies recorded in 4.4.4.6.6 and 4.4.4.6.7 and divide the sum by two. pass filter. This quotient is the center eequency of the band- The center freguency sh
40、all be 7000 plus or minus 75 Hz. 4.4.4.8 To measure the response as set forth in 3.4.6. . 4.4.4.8.1 Set the oscillator to the. frequency recorded in 4.4.4.6.4. Adjust the oscillator output for 1 vrmson the output -voltmeter. 4.4.4.8.2 put voltmeter indicates 1 db below lvrms. this occurs. This frequ
41、ency shall not be above 6200 he Decrease the oscillator frequency below 7 KHz until the out- Record the frequency at which 4.4.4.8.3 Increase the oscillator frequency above7 KHz until an in- This frequency shall not be dication of 1 db below 1 vrms is again obtained on the outp.rb voltmeter. Record
42、the frequency at which this occurs. below 7800 Hz. . 4.4.4.9 To masure the attenuation as set forth in 3.4.7: 4,4.4.9.i Adjust the oscillator to the frequency recorded in 4.4.4.6.4. Cet the oscillator output %o 1 wms, as indicated on the output voltEte-r. - 7 I. I Provided by IHSNot for ResaleNo rep
43、roduction or networking permitted without license from IHS-,-,- -% . - flIL-F-81150A 13 I 9979706 0358738 b II . n * . -, - -_ _ _ _-_ - _ - KtL-F-8115OA(OC) . . . . 4.4.4.9.2 Decrease the oscillator frequency below 7 XEIz wtil the out- . put voltheter indicates 30 db below 1 vrms. frequency shall n
44、otbe lower than b KHz. When this indication is ob- . . .taine, record the frequency indicated on the electronic counter. .This . 4.4.4-.9.3 Increase the oscillator frequency above 7. KHz wtil the aut- put. voltmeter again indicates 30 ab below 1 vrms and-record the frequency indica-kon the electroni
45、c Qonter. This frequency shall not be greater , . t-13KBz. 4.4.4.10 To measure the insertion -loss as set forth .i.n 3.4.8: . 4.4.4.10.1 Adjust the oscillator frequency control until the electronic _ , . output Por 1 vrms as indicated on the outputvoltmeter. counter indicates the center frequency de
46、termined in 4.4.4.7.2. inpt voltmeter .probe to pin 1 of the filter. Move the Then set $he oscil1at;or . - k.4.4.10.2 -Record the voltage. indicated on the input voltmeter. pute the insertion loss in decLbels %om the following expression: Com- -_ Insertion loss (in ab) = 20 loglo V I where V is the
47、voltage recorded in 4.4.4.10.2. . - :I “he insertion loss shal be less than 1.5 db. 4.4.4.11- To measure the input and output impedance.ac set forth in 3*4.1: 4.4.4.11.1 ea on output; voltmetel- R = load resistance, compute the power -dissipated in- the load resistance. 4.4.4.11.2 4Xthout adjusting
48、the input voltage, change the load resis- tance to 0.150 megohm (4.k,3.11), 0.180 megohm (4.4.3e12), 0.190 megohm (4.4.3.13), 0.210 megohm .(4.4.3.14), 0.220 megohm (4,4.3.15), and 0.250 megohm (4.4.3.16). the load resistance, .using the expression given in 404.4.il.i. Maximum For each resistance, c
49、ompute the power dissipated in I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. . MIL-F-1150A 13 999990b 0358739 - - _ - - - $EL-F-IIOA( os) . power dissipation (indicaMng -IQ,oad = output medance). slia .occ?l using a oa resi.stance of 200,000-plus or minus
