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    NAVY MIL-G-23723 (2)-1967 GYROSCOPE RATE SWITCHING CN-495 AJB-3《CN-495 AJB-3速率开关陀螺》.pdf

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    NAVY MIL-G-23723 (2)-1967 GYROSCOPE RATE SWITCHING CN-495 AJB-3《CN-495 AJB-3速率开关陀螺》.pdf

    1、MIL-G-23723 (2) bb = 7777706 0132213 2 M 1 Aw 1967 . -. surrersedinn HILITARY SPECIFICATION Gyroscope, Rate Switching CN-495/AdB-3 This amendment forms a part of Military SpscUication MIL-0-23723(WEP) dated 15 January 1964 and has been approved by the Naval Air Systems Command, Departnent of the Nav

    2、y. un particle size shall not exceed 8.8 Microns diameter in the medium.“ *Page 6, Paragraph 3 . 5 . 1 (1 ) : Delete “Three Phase“ and substitute “Single Phase“ *Page 6, paragraph 3.5.3: Delete Page 6: Add “3.5.6 Switchine: Mechanism - The switching mechanism shall contain a single pole double throw

    3、 switch with solid plathum alloy contact points or equivalent. closed circuit shall open when a tup rate of 15 per minute or more is imposed on the Gyroscope. Amperes resistive load at 115 volts. The normally open circuit shall close and the normaily The contact rating shall be not less than 2 The c

    4、ontact circuits shall be isolated from the Page 11, other circuitry in the gyroscope and from the case.“ Paragraph 4.4.2.2.1: Delete “Test for Helium“ t -2- Licensed by Information Handling ServicesM1L-C;-23723 (AS) AMENDMENT02 “4.4.3 Reliability Procedure - Reliability Assurance-Testing will Each e

    5、quipment produce8 under be accomplished through a production burn-in. this contract shall be operated for one hundred-fifty (150) operating hours burn-in, and the test data (operating hours and failures) shall be compared to the accept/reject criteria of Test Plan V of MIL-STD-781. equipment shall n

    6、ot be held up to await a decision under the Test Plan. In event an accept decision is reached, the test duration of each equip- ment shall be reduced to 100 operating hours. of time from the 100 hour burn-in, results in the second accept ddcision, the test duration on each equipment shall be reduced

    7、 to 50 hours. At any time that the current totals of test hours and test failures plotted on Test Plan V curves show a reject situation, the Frocuring Activity shall be notified. acceptance of equipment at any time that a reject situation exists pending a review of the Contractorls efforts to improv

    8、e the equipment, the equip- ment parts, the equipment workmanship, etc., so that the entire compilation will show other than a reject decision, Delivery of In the event the accumulation The Proornihg Activity reserves the right to Sto& the *4.4.3 .i Test Level - The Zest Level shall be %If from MIL-

    9、STD-781 . 4.6.3 02 Perf ormance Characteristics to be Measure$ - The performance characteristics to be measured shall be as specified in 6.6. 4.4.3.3 Failure Criteria - In addition to the requirements of MIGSTD-781, the following requirements shall be used to determine when a failure.has occurred du

    10、ring the test: i. Whenever performance characteristics fall below the acceptance requirements (4.4.3 .), at least one failure has occurred. that several parts have deteriorated, each should be counted a failure. If subsequent analysis reveals 2. If more than one item is resFonsible for degrading the

    11、 system, each item shall be counted a failure.“ Page 16, Paragraph 4.7: Delete “Signal Adapters“ and Substitute “Rate Switching Gyros“ Page 16, Parfigraph 4.6.20: Delete Page 17, Paragraph 6.1: Delete and Substitute “6.1 Intended Use - The Rate Switching GyroscoFe covered by this specification is in

    12、tended for use in aircraft as a unit of the AN/AJR3, AN/AJB-3A and Aii/ASN-50. . -3- Licensed by Information Handling ServicesI - - - - MIL-G-23723 (2) 66 m 7777906 0332236 m .- MIM-23723 (AS) AMENDMENTA Page 17: Add “6.6 Perf orman ce Characteristics to be Meas- - At least twice each week, the Rate

    13、 Switching Gyroscope shall be subjected to and meet the requirements of the following tests: 1. Switching (4.6.3) 2. Yaw Oscillation (4.6.4) 3. Steady State Turn and Yaw Oscillation (4.6.5)“ An asterisk preceding a change to the specification denotes a change which did not appear in Amendment-I *US. GOVERNMENT PRINTING OFFICE: 1967-301-512/1742 9 v -11- I Licensed by Information Handling Services


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