1、MIL-C-24L05D H 9999906 200L94b 464 I IINCH-POUNDI MIL-C-24105D(SH) 25 Mav 1995 SUPERSEDING MIL-C-24105C(SH) 28 September 1984 (See 6.9) MILITARY SPECIFICATION CONVERTERS, SYNCHRO SIGNAL (PANEL MOUNTED) GENERAL SPECIFICATION FOR This specification is approved for use by the Naval Sea Systems Command,
2、 Department of the Navy, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the requirements for the synchro signal converters (hereinafter referred to as converters) used for: (1) increasing the capacity of a synchro
3、signal transmission system, (2) converting synchro transmission from either 60 to 400 hertz (Hz) or 400 to 60 Hz synchro signal transmission, (3) converting relative bearing signals to true bearing signals, (4) changing synchro speeds, and (5) isolating reflected oscillations from the input synchro
4、bus. 1.2 Classification. Converters are classified according to the following characteristics, as specified (see 6.2 and 6.7). Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, SEA 03R4
5、2, Naval Sea Systems Command, 2531 Jefferson Davis Hwy, Arlington, VA 22242-5160 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 6125 DISTRIBUTION STATEMENT A. Approved for public release; distr
6、ibution is unlimited. Licensed by Information Handling ServicesflIL-C-24LOSD 9999906 2001947 3T0 I MIL-C-24105D(SH) 1.2.1 Number and gear ratios of input and output channels. The number and gear ratios of the input and output channels identified as specified in table I. 1.2.2 1/18 speed output accur
7、acy. The accuracy of the 1/18 speed output of triple output converters identified as follows: (a) O - Not applicable (b) 1 - 0.2 degree accuracy (c) 2 - 0.5 degree accuracy 1.2.3 Input and output voltages and frequencies. The input and output voltages and frequencies identified as specified in table
8、 II. 1.2.4 Size and type of output synchros. The size and type of output synchros identified as specified in table III. 2. APPLICABLE DOCUMENTS 2.1 Government documents 2.1.1 Specifications. standards. and handbooks. The following specifi- cations, standards, and handbooks form a part of this docume
9、nt to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation (see 6.2). SPECIFICATIONS FEDERAL FF-B-171 FF-B-185
10、 FF- B - 18 7 QQ-A- 200 QQ - A - 2 2 5 QQ-A- 250 QQ- C - 320 - Bearings, Ball, Annular (General Purpose). - Bearings, Roller, Cylindrical; and Bearings, Roller, - Bearing, Roller, Tapered. - Aluminum Alloy, Bar, Rod, Shapes, Structural Shapes, - Aluminum and Aluminum Alloy Bar, Rod, Wire, or Self-Al
11、igning, Tube and Wire, Extruded: General Specification for. Special Shapes; Rolled, Drawn, or Cold Finished; General Specification for. Specification for. - Aluminum and Aluminum Alloy Plate and Sheet: General - Chromium Plating (Electrodeposited). MILITARY MIL- I - 10 - Insulating Compound, Electri
12、cal, Ceramic, Class L. MIL-1-631 - Insulation, Electrical, Synthetic-Resin Composition, MIL-S-901 - Shock Tests, H.I. (High Impact) Shipboard Machinery, MIL-C-5541 - Chemical Conversion Coatings on Aluminum and Aluminum MIL-T-7928 - Terminals, Lug: Splices, Conductor: Crimp Style, MIL-P-10971 - Pin,
13、 Spring, Tubular (Coiled and Slotted). Nonrigid. Equipment, and Systems, Requirements for. Alloys. Copper, General Specification for. 2 Licensed by Information Handling ServicesI 6 MILITARY (Continued) MIL-F-15160 - Fuses: Instrument, Power, and Telephone. MIL-F-15160/77 - Fuses (Indicating), Style
14、F77A. MIL-T-16366 - Terminals, Electrical Lug and Conductor Splices, Crimp-Style. MIL-W-16878 - Wire, Electrical, Insulated, General Specification for. MIL-W-16878/4 - Wire, Electrical, Polytetrafluoroethylene (PTFE) Insulated, 2OO0C, 600 Volts, Extruded Insulation, MIL-E-17555 - Electronic and Elec
15、trical Equipment, Accessories, and Provisioned Items (Repair Parts): Packaging of. MIL-B-17931 - Bearings, Ball, Annular, For Quiet Operation. MIL-F-19207 - Fuseholders, Extractor Post Type, Blown Fuse Indicating and Non-Indicating, General Specification for. MIL-F-19207/38 - Fuseholders, Extractor
16、Post Type, Blown Fuse Indicating, Type FHL57G. MIL-S-19500 - Semiconductor Devices, General Specification for. MIL-S-20708 - Synchros, General Specification for. MIL-A-21180 - Aluminum-Alloy Castings, High Strength. MIL-S-22432 - Servomotors, General Specification for. MIL-S-23190 - Straps, Clamps,
17、and Mounting Hardware, Plastic and MIL-C-28748 - Connectors, Plug and Receptacle, Rectangular, Rack Metal for Cable Harness Tying and Support. and Panel, Solder Type and Crimp Type Contacts, General Specification for. MIL-C-28748/9 - Connectors, Receptacle, Electrical, Rectangular, Rack and Panel, P
18、olarized Center Jackscrew or Guidepin Style, Crimp Type Removable Pin Contacts, Size 16. or Plastic Film Dielectric, Direct and Alternating Current, (Hermetically Sealed in Metal or Ceramic Cases), Established Reliability, General Specification for. Types, and Associated Accessories, General Specifi
19、cation for. MIL-2-39022 - Capacitors, Fixed, Metallized, Paper-Plastic Film, MIL-T-55164 - Terminal Boards, Molded, Barrier, Screw and Stud (See supplement 1 for list of associated specifications.) STANDARDS MILITARY MIL-STD-167-1 - Mechanical Vibrations of Shipboard Equipment (Type I - Environmenta
20、l and Type II - Internally Excited). MIL-STD-242 - Electronic Equipment Parts Selected Standards. MIL-STD-454 - Standard General Requirements for Electronic MIL-STD-461 - Requirements for the Control of Electromagnetic Equipment. Interference Emissions and Susceptibility. Licensed by Information Han
21、dling ServicesMIL-C-24305D 99999Ob 2003949 173 MIL-C-24105D(SH) MILITARY (Continued) MIL-STD-462 MIL-STD-701 - List of Standard Semiconductor Devices. MIL-STD-710 - Synchros, 60 and 400 Hertz, Selection and MIL-STD-740 - Airborne and Structureborne Noise Measurements and MIL-STD-889 - Dissimilar Met
22、als. MIL-STD-1303 - Painting of Naval Ordnance Equipment. MIL-STD-1399, - Interface Standard for Shipboard Systems, - Measurement of Electromagnetic Interference Characteristics. Application of. Acceptance Criteria of Shipboard Equipment. SECTION 300 SECTION 300 Electric Power, Alternating Current.
23、(Met ric ) HANDBOOKS MILITARY MIL-HDBK-225 - Synchros Description and Operation. (Unless otherwise indicated, copies of federal and military specifications, standards, and handbooks are available from the Standardization Documents Order Desk, BLDG. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094
24、.) 2.1.2 Other Government documents, drawings. and rmblications. The following other Government documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation. PUBLICATIONS NAVAL SEA SYSTEM
25、S COMMAND (NAVSEA) DDS 430-2 - Procedure for Determining Synchro System Loading Capacity. (Application for copies should be addressed to the Standardization Documents Order Desk, BLDG. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2.2 Non-Government publications. The following documents form
26、 a part of this specification to the extent specified herein. the issues of the documents which are DOD adopted are those listed in the issue of the DODISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS are the issues of the documents cited in
27、 the solicitation (see 6.2). Unless otherwise specified, AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) A 153 - Standard Specification for Zinc Coating (Hot-Dip) on Iron B 26 - Standard Specification for Aluminum-Alloy Sand Castings. B 108 - Standard Specification for Aluminum-Alloy Permanent Mol
28、d B 633 - Standard Specification for Electrodeposited Coatings of and Steel Hardware. (DoD adopted) (DoD adopted) Castings . (DoD adopted) Zinc on Iron and Steel. u 4 Licensed by Information Handling ServicesMIL-C-24105D 7997b 2001950 995 MIL-C-24105D(SH) (Application for copies should be addressed
29、to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) (Non-Government standards and other publications are normally available from the organizations that prepare or distribute the documents. also be available in or through libraries or other informational serv
30、ices.) These documents may 2.3 Order of precedence. In the event of a conflict between the text of this document and the references cited herein (except for related specification sheets), the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and re
31、gulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 General requirements. 3.1.1 Specification sheets. The individual item requirements shall be as In specified herein and in accordance with the applicable specification sheet. the event of any conflict between the requirement
32、s of this specification and the specification sheet, the latter shall govern. 3.1.2 First article. When specified (see 6.2), a sample shall be subjected to first article inspection (see 6.4) in accordance with 4.3. 3.2.1 Converter descriDtion. devices, and one or more output synchro devices as speci
33、fied (see 6.2). devices, referred to herein as servos, shall be a servtorq or a control transformer with an amplifier unit and a servomotor as specified. shall be coupled between the input and output devices directly or by gearing (see figures 1 through 7). enclosure as specified on figure 8. Conver
34、ters shall consist of one or more input Input Servo unit The above parts shall be assembled in a panel mounted 3.2.2 Signal characteristics. The various signal combinations that may be transmitted through a converter shall be identified as specified in 3.2.2.1 through 3.2.2.2.3 3.2.2.1 Single channe
35、l converters. 3.2.2.1.1 Single channel converters (see figures 1 and 2) shall provide one of the following output signal to input displacement ratios: (a) 1 : 1 (b) 1 : 2 (c) 2 : 1 3.2.2.2 Multiple channel converters. 3.2.2.2.1 Single input converters (see figure 3 or 4) shall provide one of the fol
36、lowing combinations of output signal to input displacement ratios: 5 Licensed by Information Handling ServicesNIL-C-24105D m 9999906 2OOL953 823 MIL-C-24105D(SH) (a) 1:36, 1:1, and 1:1/18 (b) 36:36, 36:1, and 36:1/18 3.2.2.2.2 Double input - triple output converters (see figure 5) shall provide the
37、following output signal to input displacements ratios: 36:36, 36:l , l:l/l and 1:36, 1:1, l:l/l 3.2.2.2.3 Double input - double output converters (see figure 6) shall provide one of the following output signal to input ratios: 36:36, 36:l and 1:36, 1:l 3.2.2.2.4 Double input - triple output converte
38、rs (see figure 7) shall provide the following output signal to input displacements ratios: 36:36, and 1:1, 1:1/18 3.2.3 Converter simal input impedance. device, the load placed on the CTs rotor by the amplifier unit shall be greater than 10,000 ohms for 60 Hz units and greater than 15,000 ohms for t
39、he 400 Hz units. This prevents excessive loading of the converters signal source transmitters. If a CT is used as the input 3.2.4 Operation. The typical cycle of operation of the converter shall be as follows: If the converters input device is a CT, an error voltage is generated on the CTs rotor. Th
40、is voltage is amplified and is used to control a servomotor. The servomotor drives the shaft of the CT along with the output synchros of the converter gearing. the converter, the servomotor stops. amplifier, and servomotor. A synchro signal shall be transmitted to the input of the converter. When th
41、e shaft of the CT is aligned with the synchro input to A servtorq may be used in place of the CT, 3.3 General features. 3.3.1 Characteristics. Characteristics not normally incorporated in the design of commercial equipment are required on Naval ships. requirements which are the basis for the design
42、of all Naval equipment shall be as follows : The primary Maximum reliability for operation under shipboard conditions of heat, moisture, vibration, shock and ship motion as described here in. Material and design shall be lightweight and compact consistent with reliable shipboard operation. Maximum a
43、ccessibility for inspection and maintenance. Maximum simplicity of design consistent with other requirements described herein. Maximum resistance to corrosive action, in particular that of moist sea air and ultraviolet radiation. Maximum operating and maintenance economy. Maximum interchangeability
44、of parts. Minimum number of necessary maintenance parts. 6 Licensed by Information Handling Services1 e MIL-C-24105D U 997790b 2001952 768 MIL-C-24105D(SH) (i) Satisfactory identification of equipment and parts for ease in (j) (k) (1) Maximum ease of installation. accurate requisitioning. normally f
45、ound on board ships. Maximum ease of repair by Naval personnel and with the facilities Maximum protection for operating and maintenance personnel. 3.3.2 Standard parts. Standard stock parts and hardware shall be used to as great an extent as practicable. For the purpose of this specification, standa
46、rd stock is defined as material listed in the Federal Supply Catalog and includes such items as bearings, grease, oil, wire, bolts, screws, nuts, and washers. Proprietary parts or parts available from one source shall not be used where equivalent or similar parts are available as standard parts or a
47、re available from two or more sources. 3.3.3 Interchangeabilitv. Parts used in the equipment shall be interchange- able to the greatest extent practicable, in accordance with requirement 7 of MIL-STD-454. 3.4 Materials and processes. Materials and processes used in the manufacture of the converters
48、shall conform to the specifications described herein, as well as the following requirements of MIL-STD-454. Requirement 3 - Flammable materials. Requirement 4 - Fungus-inert materials. Requirement 11 - Insulating materials, electrical (see 3.5.4 and Requirement 13 - Structural welding. Requirement 1
49、5 - Ferrous alloys, corrosion-resistant (only Requirement 17 - Printed wiring. Requirement 21 - Castings. Requirement 26 - Arc-resistant materials. Requirement 43 - Lubricants. 3.6.10.2). austenitic stainless steel shall be used). 3.4.1 Toxic materials. Radioactive materials, mercury, and heavy metal biocides shall not be used. Materials used in the construction of the converter shall not produce corrosive, deleterious, or toxic fumes or vapors under all conditions herein. 3.4.2 Wood. Wood shall not be used. 3.4.3 Aluminum. Where the use of lightweight corrosion-resistant metal is des
