1、MIL-G-23083C bb 06 OL312b O W !- A-a-I-i3 123083 (AS) 15 Jmwy 1972 SUPFBSEDING M1-23083B( AS) 15 May 1967 MILITARY SPECIFICATION GYROSCOPE, RAm SWI“ING Preproduction and Acceptance For Aircraft Electronic Equipment, Format For Nomencl ature and Namepl ates For Aeronautical Electronic and Associated
2、Equipment Attitude Indicating System, Remote, Standby , Two-Inch Gyro Indi cator System , Verti cal Grease , Aircraft, General Purpose Wide Temperature Range Barrier Film Solvents and Solutions Marking for Shipping and Storage Electromagnetic Interference Characteristics Requirement For Equ i pmen t
3、 Electric Power, Aircraft, Character- istics and Utilization of Reliability Tests, Exponential Di s tri buti on Re1 i abi 1 i ty Program For Systems and Equipment Development and Production Parts and Equipment, Procedures For Packagng and Packing of Lubricating of Military Equipment Barrier Fi lm Co
4、ating for Anti -Friction Bearings Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-23083C bb 7797706 0131270 7 MS-3106 MIL-G-23083C( AS ) Connectors-Electrical, PluFI;s, St rai ght MS-17399 Gyroscope, Rate Switching 9 Federal FED-STD-209 Clean R
5、oom and Work Station Requirements, Controlled Environment Naval Air Systems Command AR-5 AR-10 AR-34 As-2844 WD Documents SD-6 Microelectronic Devices Used in Avionics Equipment, Procedures for Selection and Approvai of Maintainability of Avionics Equip- ment and Systems , General Require- ments For
6、 Failure Clas si f ication For Reliability Testing , General Requirement For Lubricating Oil , Instrument , Ball Bearing, High Flash Point Provisions Governing Qualification (QuaLification Products List) “2.2 Availability of Documents - When requesting speeifications , standards, drawings, and publi
7、cations refer to both title and number. Copies of this specification and applicable specifications, required by contractors in connection with specific procurement functions, may be obtained upon application to the Commanding Officer, hiblications and Forms Center (Code 1051) , 5801 Tabor Avenue , P
8、hiladelphir., Pennsylvania 19x0. 3. REQUIREMENTS *3.1 Qualification - The instruments furnished under this specifica- tion shall be a product which has been tested and meets the quality assurance provisions specified herein and has been listed on or approved for listing on the applicable Qualified P
9、roducts List in accordame aith Provisions governing qualification SD-6. 3 . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. MIL-G-23083C bb m 777790b 0131271 O m MIL-G-23083C( AS) 3.2 Parts and Naterials - In the selection of parts and materials, f
10、ulfillment of major desiqn objectives shall be the prime consideration. In so doing the following (1 1 (3) shall govern : Parts and materi al s requi rementc shall conform to Nonrepairable subassemblies, as outlined in NL-E- 5400, shall be used when practicable. The general size of the subassenbly a
11、nd the amount of circuitry, to be included therein, shall be approved by the procuri nq acti vi ty . Nonrepai rab1 e subassembl i es must be reliable. f.1 I L - E - 54 GO. Wnen previously produced models of the Rate Switch- ing Gyroscope did not use nonrepairable subassem- blies, the design shal not
12、 be changed to employ nonrepairable assemblies without the approval of the procuring activity. 3.2.1 Nonstandard Parts and Materials Approval - Approval for the use of nonstandard parts and materials shall be obtained as outlined in MIL-E-5400. * 3.2.2 Microelectronic Modular Assemblies - When used,
13、 Micro- electronic Modular Assemblies shall meet the requirements of Specification AR-5. Conformal coatings, encapsulants , embedments or potting materials used with modular assemblies containing integrated circuits and discrete parts shall be easily removable without daniage to the assembly. be fun
14、ctionally modmd in accordance with Specification AR-10. shall conform with all the applicable requirements of %IL-E-5400 for design, construction and workmanshi p, except as otherwise specified herein. scope, excluding cab es, sha 1 not exceed 1.6 pounds. Program using NIL-STD-785 as a guide. has pr
15、eviously produced the equipment, the program previously used may be continued unless otherwise indicated in the contract or order. * 3.2.3 3.3 Modules - The electronic portions of the equipment shall Design and Construction - The Rate Switching Gyroscope Total Wei ht - The total weight of the Rate S
16、witching Gyro- Reliability - The cntractor shall conduct a Reliability + 3.3.1 * 3.3.2 On a reorder from a supplier, who 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-23083C 66 m O6 0131272 2 MIL-G-23083C( AS) * 3.3.2.1 Operational Stabilit
17、y - The Rate Switching Gyroscope shall operate with satisfactory performance, continuously or intermittently, for a period of at least 2000 hours without the necessity for readjustment of any controls .which are inaccessible to the operator during normal use. total operating life of 5000 hours with
18、reasonable servicing and replacement of parts. con tractor. 3.3.2.2 Operating Life - The Rate Switching Gyrsocope shall have a Parts requiring schedule replacement shall be specified by the * 3.3.2.3 Reliability In Mean-Time-Between-Failures (MTBF) - The equipment shall have 2000 hours of /kan (oDer
19、atina) Time Between Failures when tested and accepted as outlined under the reuireinents of 4.4.3. 3.3.3 Cabl ing and Connections 3.3.3.1 shall provide for the use of cables and connectors in accordance with Cables and Connectors - The Rate Switchin9 Gyroscope MIL-E-5400. 3.3.3.2 Interconnection Cab
20、l ing - The Rate Switching Gyroscope shall be capable of satisfactory operation, using external wiring, in accord- ance with the applicable requirements of MIL-W-5988. The external wiring shall be unshielded, except that a minimum number of the individual wires may be shielded when demonstrated, as
21、necessary, to meet interference conrol requirements and provided the assembly of the cable to its plugs may be easily accomplished. External cables and that portion of the connectors, attached to the cables, shall not be supplied as part of the equipment. 3.3.3.3 Electrical Connector - A hermeti cal
22、 1 y sealed connector shall be affixed to the case. The connector shall mate with connector NS-3106-14S-5S. The pin connections shall conform to Table I. Pin - TABLE I Ci rcui t A B C Turn Switching Relay Contact Terminal (N.C.) D Turn Switching Relay Contact Terminal (COl4,) E Turn Switching Relay
23、Contact Terminal (N.O.) 115V, 400 cps Single phase AC Power 115V, 400 cps Single phase AC Power 5 c ., -,- I - I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-23083C bb 99799Ob 0131273 Li W MI L-G-23083C( AS) * 3.3.4 Interchangeability - The
24、equipment shall meet the interchangeability requirement of Specification MIL-E-5400. 3.3.5 Electromagnetic Interference - The instrument shall meet the interference requirements of MI L-STD-461. 3.3.6 maintenance shall be as specified in MIL-E-5400. Specific test points and test facilities shall be
25、provided to the greatest extent practicable for ease of field testing and maintenance. Maintenance Provisions and Field Testing - Provisions for 3.3.7 number assignment, nameplate approval and equipment identification marking shall be in accordance with t-1IL-N-18307. 3.3.8 Standard Conditions - The
26、 fol lowing conditions shall be used to establish normal performance characteristics under standard conditions and for making laboratory bench tests. Nomencl ature and Namepl ates - Nomencl ature and seri al Tempera t Ure Room Ambient (25OC 5OC) Al ti tude Vi bration None Hum4 di ty Input Power Norm
27、al Ground (O to 5000 ft.) Room ambient up to 90 percent re1 ative hum1 di ty 115 + 1.0 VAC 400 + 20 cps (AC Power Single Phaser 3*3.9 Servi ce Conditions - The Rate Switching Gyroscope shall operate satisfactorily under any of the environmental service conditions or reasonable combination of these c
28、onditions, as specified in MIL-E-5400 for Class 2 equipment, except as modified herein. 3.3.9.1 Vibration - The Rate Switching Gyroscope shall operate satisfactorily when subjected to the vibration requirements of Curve IVA of MIL-E-5400. 3.3.10 Primary Input Power Requirements - The Rate Switching
29、Gyroscope shall meet al 1 appl icabl e requi rementc of MIL-STD-704 and shall give specified perfomance from the following power sources y with charac- teristics as defined in.MIL-STD-704, having limits as specified therein. The power required shall not exceed the specified amount: (1) AC Power (Sin
30、gle Phase) 115V, Category tlB“y 10VA 3.3.10.1 Degraded Performance - Degraded performance will be per- mitted for voltage transients not exceeding 0.5 second during normal electric system operation. Operation shall return to normal with no resulting damage to the gyroscope. 6 i- - i Provided by IHSN
31、ot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-23083C bb Wp?77770b 0131274 b m MI L- G- 2 3083 C (AS ) 3.4 Performance - The Rate Switching Gyroscope shall provide switching during turns within specified time intervals at specified turn rates. Design shall be
32、 such as Lo provide unswitching within prescribed time intervals after return to zero turn rate from a particular rate of turn. The damping medium used in the Rate Switching Gyroscope shall be a viscous fluid (not to be construed as a gas). The Rate Switching Gyro- scope shall be constructed to with
33、stand, without fai 1 Ure, normal shocks $ vibrations, and such other conditions as are incident to service, shiuping, storage, and instal 1 ati on. * 3.4.1 Performance Conpati bi 1 i ty - The Rate Swi tchi ng Gyroscope shall operate satisfactorily, in both the normal and the inverted Dositions, when
34、 installed in aircraft and shall meet the specified tests and require- ments of this specification. applicable requirements of UIL-A-22858 and PIIL-S-23C81. suppliers responsibility to prove the components performance compatibility to the tests and requirements of this specification and to the appli
35、cable system requirements of FIIL-A-22858 and MIL-G-23931 for al 1 Qualification, Initial Production, Production Sampling Test Plans, and Reliability Assurance Tests. The gyroscope shall also conform to all It shall be the 3.5 Detai 1 Requirements * 3.5.1 Function - Tne Rate Switching Gyroscope shal
36、l provide switching during turns within specified time intervals at specified turn rates. Design shall be such as to provide no switching within specified time intervals after return to zero turn rate from a particular rate of turn. The Rate Switching Gyroscope shall consist of three assembl ies : (
37、1 ) Gyroscope Assembly (2) Hydraulic Viscous Damping Assembly (3) Electronics Assembly Each assembly shall be separately independent and concentric with the other. of 3.6.2. The Gyroscope Assembly shall conform with filling medium require- ments of 3.6.1. be free from hangup. therof, shall comp1.y w
38、ith the specifications AR-5 and AR-10 and the perform- ance requirements of this specification shall be met. The Rate Switchin9 Gyroscope shall operate normally when properly connected in the gyroscope platform system, conforming to the requirements of this and other applicable specifications. The H
39、ydraulic Damping Fiedium shall conform with the requirements With Hydraulic Viscous Damping, the mechanism shall always Where electronic damping is used, the components, 7 . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-!4IL-G-Z3083C (AS) 3.5.2 Swi
40、tching Mechanism - The switching mechanism chal 1 con- tain a single pole double throw switch, with solid platinum alloy contact points or equivalent. normally closed circuit shall open when a turn rate of 15“ per minute, or more, is imposed on the Gyroscope. The contact rating shall not be less tha
41、n 2 amperes resistive load at 115 volts. electrically isolated from the other circuitry in the gyroscope and from the case. The normally open circuit, shall close and the The contact circuits shall be 3.6 - Case - The case shall be hermetically sealed and shall be constructed so that the mechanism m
42、y be removed from the case, replaced, and the case resealed without the use of special tools and fixtures. The hemetic seal shall be perfectly closed and an airtight seal made between metallic and metallic, or metallic and vitric materials. The hermetic seal is not intended to include seals accompli
43、shed by gaskets. dimensions of the case shall conform to 16-17399. The 3.6.1 Filling lkdium - The filling medium shall be of at least 98 percent purity, free of dust particles and containing not more than 0.006 milligram of water vapor per liter (dew point -65OC) at the filling pressure. The filling
44、 medium shall be a mixture of 95 percent helium and 5 percent carbon dioxide, or a filling medium approved by the procuring activity. The absolute pressure of the filling medium in the case shall be approximately one atmosphere. Dow Corning 510 fluid or equivalent and shall be filtered so that the m
45、aximum particle size shall not exceed 8.8 ticrons dianieter in the medium. 3.7 Degree of Clean1 iness - The Rate Switching Gyroscope shall be assembled in a Class 100 clean room, as specified in FED-STD-209. The unit shall be thoroughly cleaned to assure that close tolerance in- terface moving surfa
46、ces will not malfunction because of contaminating deposits or loose particles resulting from environmental operating con- di tions. 3.6.2 Hydraulic Medium - The Hydraulic Filling Kedium shall be * 3.8 Lubrication - The Gimbal bearings shall be lubricated with oil AS-2844 in accordance with KIL-L-608
47、5 unless immersed in the hydraulic filling medium of paragraph 3.6.2. The spin rotor bearing synthetic separators shall be impregnated with AS-2844 lubricating oil. The Gyroscope Spin Rotor Bearings shall otherwise be lubricated with grease MIL-G-81322 or with blini - pure grease. Particle size not
48、exceeding 25 microns for 2% volume shall be used in accordance with MIL-STO-838, All ball bearings shall be ABEC-7 grade or greater. 8 d , Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-23083C 66 977790b.0333276 T Il1 L-G-23083C (AS) * 3.9 Bar
49、rier Film Coating - All anti-friction bearings shall be processed in accordance with MIL-STD-1334. The coating material shall be in accordance with Specification MIL-B-81744. Bearing chamfers and corners shall also be barrier coated to prevent bridging and migration of the lubricant from the bearing working area. * 3.10 Warm-up Time - The Gyroscope shall not require a warm-up period of more than 90 seconds under any
