1、 MIL-PRF-71196 (AR) 24 January 2002 PERFORMANCE SPECIFICATION SENSOR, VEHICLE MOTION This specification is approved for use by the U.S. Army Armament Research, Development and Engineering Center, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scop
2、e. This specification covers the requirements, examinations and tests for the Vehicle Motion Sensor (VMS) used in conjunction with a Dynamic Reference Unit (DRU)/Dynamic Reference Unit Hybrid (DRU-H) or other navigation device (see 6.1). 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in t
3、his section are specified in sections 3 and 4 of this specification. This section does not include documents in other sections of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are
4、cautioned that they must meet all requirements documents cited in sections 3 and 4 of this specification, whether or not they are listed. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document, should be addressed to: Command
5、er, U.S. Army TACOM-ARDEC, ATTN: AMSTA-AR-QAW-E, Picatinny Arsenal, New Jersey 07806-5000 by using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 1290 DISTRIBUTION STATEMENT A. Approved for public release; d. INCH - P
6、OUND Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-distribution is unlimiteMIL-PRF-71196 (AR) 2 2.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this doc
7、ument 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 DEPARTMENT OF DEFENSE
8、MIL-C-53072 - Chemical Agent Resistant Coating (CARC) System Application Procedures and Quality Control Inspection STANDARDS FEDERAL FED-STD-595 - Colors Used in Government Procurement DEPARTMENT OF DEFENSE MIL-STD-108 - Definitions of and Basic Requirements for Enclosures for Electric and Electroni
9、c Equipment MIL-STD-129 - Standard Practice For Military Marking MIL-STD-331 - Fuze And Fuze Components Environmental And Performance Tests For MIL-STD-461 - Requirements for the Control of Electromagnetic Interference Characteristics of Subsystems and Equipment MIL-STD-810 - Environmental Engineeri
10、ng Considerations and Laboratory Tests MIL-STD-1916 - DOD Preferred Methods for Acceptance Of Product (Unless otherwise indicated, copies of the above specifications, standards, and handbooks are available from the Standardization Documents Order Desk, 700 Robbins Avenue, Bldg. 4D, Philadelphia, PA
11、19111-5094.) 2.2.2 Other Government documents, drawings, and publications. 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. DRAWINGS (see 6.3)
12、Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-71196 (AR) 3 U.S. ARMY ARMAMENT RESEARCH, DEVELOPMENT AND ENGINEERING CENTER (ARDEC) 12927632 - VMS Assembly MS27468 - Connector, Receptacle, Electrical, Jam Nut Mounting, Crimp Type, Bayonet Co
13、upling, Series I (Copies of other Government documents, drawings, and publications required by contractors in connection with specific acquisition functions should be obtained from U.S. Army TACOM-ARDEC, AMSTA-AR-QAW-E) 2.3 Non-Government publications. The following document(s) form a part of this d
14、ocument to the extent specified herein. Unless otherwise specified, the issue of documents, which DOD adopted are those listed in the issue of the DODISS cited in the solicitation. Unless otherwise specified, the issue of documents not listed in the DODISS are the issues of the documents cited in th
15、e solicitation (see 6.2). TELECOMMUNICATIONS INDUSTRY ASSOCIATION EIA-TIA422 - Electrical Characteristics of Balanced Voltage Digital Interface Circuits (Copies are available from the TIA, Standards and Technology Dept. 2500 Wilson Blvd, Arlington, VA 22201.) AMERICAN SOCIETY OF TESTING AND MATERIAL
16、S ASTM G21 - Standard Practice for Determining Resistance of Synthetic Polymeric Materials to Fungi (Copies are available from ASTM, 100 Barr Harbor Drive, West Conshohocken, Pennsylvania, USA 19428-2959) 2.4 Order of precedence. In the event of a conflict between the text of this document and the r
17、eferences cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Design verification. When specified in the contract, a sample of the VMS shall be subje
18、cted to design verification in accordance with 4.2. 3.2 First Article. When specified in the contract order (see 6.2), a sample shall be subjected to first article inspection in accordance 4.3. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-
19、71196 (AR) 4 3.3 Interface requirements. The VMS shall meet the requirements specified herein when operated at shaft speeds within the range of 0 to 1400 rpm, forward or reverse. 3.3.1. Electrical interface requirements. 3.3.1.1. Shield grounding. The connector on the VMS shall be such that it will
20、allow the inner shields and outer shields of the mating cable to be grounded through the backshell of the mating connector. Mating connectors are defined on drawing 12927632. 3.3.1.2. Input power. The VMS shall operate from on input power within 5 0.25 VDC power with peak to peak ripple up to 300 mV
21、 from DC to 20 MHz. The related requirements below also apply: a. The VMS shall not require more than 2.5 watts at 5 VDC. b. The DC returns, J1, pins 18 and 30, per 12927632, shall be isolated from chassis ground. c. The VMS shall not be damaged by and shall operate after exposure to short circuits
22、to ground of the power voltage. d. The VMS shall not be damaged by and shall operate after any power voltages within the range of 0 to +6.0 VDC. 3.3.1.3 Signal interface requirements. 3.3.1.3.1. Digital. Data shall be transferred between the VMS and a control device via digital (two-state) signal ci
23、rcuits. Data shall be formatted as pulse trains (odometer signals) and discrete signals (BIT Commands). Digital signal pin assignments shall be in accordance with 12927632. All digital signal circuits shall be balanced differential voltage circuits in accordance with EIA Standard TIA/EIA-422. All li
24、ne drivers shall comply with the generator electrical characteristics specified in TIA/EIA-422. All receivers shall comply with the requirements of TIA/EIA-422 with the following changes: a. The common mode voltage range shall be -15 to +15 volts. b. Over the entire common mode voltage range, the re
25、ceiver shall not require a differential input voltage of more than 500 millivolts to correctly assume the intended binary state. c. The maximum voltage (signal plus common mode) present between either receiver input terminal and receiver circuit ground shall not exceed 18 volts in magnitude nor caus
26、e the receiver circuit to operationally fail. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-71196 (AR) 5 d. The allowable input current versus input voltage characteristics shall be extended as follows: Input Voltage Range Input Current Ran
27、ge -18 to -10 Volts 0 to -3.25 ma +10 to +18 Volts 0 to +3.25 ma e. Over the entire common mode voltage range, the balance of the receiver input voltage-current characteristics and bias voltages shall be such that the receiver will remain in the intended binary state when a differential voltage of 1
28、,000 millivolts is applied through 500 ohms 1 percent to each input terminal. The VMS shall not be damaged or malfunction when signal circuits are connected or disconnected with power on or off. BIT 1 and BIT 2 inputs shall be internally terminated with 120 Ohm resistors connected between the “Hi“ a
29、nd “Lo“ lines. 3.3.1.3.2 Logic levels. A binary “1“ or “set“, condition shall be represented by a positive voltage on the “Hi“ line with respect to the “Lo“ line in accordance with 12927632. A logic “0“ or “reset“ condition shall be represented by a positive voltage on the “Lo“ line with respect to
30、the “Hi“ line. 3.3.2 Mechanical interface requirements. 3.3.2.1 Mechanical breakaway torque. The mechanical breakaway torque of the shaft shall not exceed 2.0 ounce-inches. 3.3.2.2 Mechanical damping. Shaft rotation shall be damped such that a sinusoidal vibration input in any of three mutually perp
31、endicular axes, at a constant amplitude of 1/32 inch peak to peak from 5 - 56 Hz, and a constant 5 gs from 56 to 200 Hz does not cause any signal indication (forward or reverse pulses) when the shaft is unrestrained. 3.3.2.3 Inertia. The VMS inertia (measured at the shaft) shall be 0.0037 .0031 inch
32、-ounce-seconds2. 3.3.2.4 Weight. The weight of the VMS shall not exceed 6 pounds. 3.3.2.5 Dimensions. The dimensions of the VMS shall be as shown on 12927632. 3.3.2.6 Mechanical drive. The interface to the mating mechanical drive cable shall be as shown on 12927632. 3.3.3 Operational interface requi
33、rements. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-71196 (AR) 6 3.3.3.1 Operation. The VMS shall provide forward and reverse pulse outputs with a 32:1 ratio of electrical pulses to shaft rotation cycles. The VMS shall produce 1 pulse fo
34、r every 11.25oof rotation of the shaft. Pulses shall be 800 80 microseconds in width. The VMS shall determine forward or reverse vehicle motion and shall output pulses on the appropriate forward or reverse signal link. 3.3.3.2 Built-In-Test. The VMS shall provide BIT capability that can detect ninet
35、y-five percent of the total of the malfunctions that occur in the VMS. The VMS shall perform BIT when directed according to the command logic given in Table I. If the BIT does not detect any malfunction, the VMS shall provide the output pulse train responses given in Table I. Malfunction of the VMS
36、shall be indicated by pulse train responses other than those given in Table I. TABLE I. BUILT-IN-TEST DISCRETE INPUT VMS OUTPUT (PULSES/SEC) BIT COMMAND 1 BIT COMMAND 2 FORWARD REVERSE 1 0 355 53 0 0 1 0 355 53 1 1 0 0 0 Normal Operation 3.3.3.3 Odometer reversal jumper. The VMS shall meet the follo
37、wing requirements. a. With no jumper between pins 7 and 8 of the connector mating with J1, counterclockwise rotation of the shaft, when viewed from the shaft extension end, shall produce output pulses on pins 3 and 4. b. With no jumper between pins 7 and 8 of the connector mating with J1, clockwise
38、rotation of the shaft, when viewed from the shaft extension end, shall produce output pulses on pins 5 and 6. c. With a jumper connected between pins 7 and 8 of connector mating with J1, clockwise rotation of the shaft, when viewed from the shaft extension end, shall produce output on pins 3 and 4.
39、d. With a jumper connected between pins 7 and 8 of the connector mating with J1, counterclockwise rotation of the shaft, when viewed from the shaft extension end, shall produce output pulses on pins 5 and 6. 3.4 Environmental requirements. 3.4.1 Altitude. 3.4.1.1 Operational Altitude. The VMS shall
40、operate at altitudes from -1300 to +10,000 feet. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-71196 (AR) 7 3.4.1.2 Non-Operational Altitude. Non-operating, the VMS shall withstand exposure to altitudes from -1300 to +40,000 feet. 3.4.2 Tem
41、perature. 3.4.2.1 Operating Temperature. The VMS shall operate in ambient air and mounting surface temperatures ranging from -50oF (-46oC) to +200oF (93oC). 3.4.2.2 Storage Temperature. The VMS shall not be damaged by storage ranging from 60oF (-51oC) to 200oF (93oC). 3.4.3 Humidity. The VMS shall n
42、ot be damaged by operation, transportation, or storage in environments with ambient relative humidity within the range of 1 to 100 percent across the temperature range defined in 3.4.2. 3.4.4 Submersion. The VMS, when connected to the mating electrical and mechanical drive cables, shall not be adver
43、sely affected after submersion in 3 feet of water for a minimum of 1 hour. 3.4.5 Washdown. The VMS, when connected to the mating electrical and mechanical drive cables, shall suffer no damage or leakage due to exposure of all surfaces to washdown using hot water at 140 20oF with a pressure between 5
44、0 1 pounds per square inch gauge (psig) and air drying at a temperature not to exceed 145oF. 3.4.6 Fungus. The materials and construction used in the VMS shall be incapable of supporting fungus growth. 3.4.7 Mechanical shock. The VMS shall operate as specified herein and shall not be damaged when su
45、bjected to 1/2 sine wave shock impulses of 40 g at 6-9 msec duration. 3.4.8 Temperature shock. The VMS shall not be damaged nor rendered inoperable when subjected to temperature shock between the ranges of -60oF (-51oC) to +200oF (93oC) as defined by MIL-STD-810. 3.4.9 Vibration. The VMS shall opera
46、te in accordance with the requirements of this specification during and after being subjected to the vibration exposure described in MIL-STD-810, for general vibration of Ground vehicles. 3.4.10 Electromagnetic interference (EMI). The VMS shall meet emission and susceptibility characteristics as est
47、ablished by MIL-STD-461 for the following: CE102, CS101, CS114, CS115, CS116, RE102, and RS103. The applicable frequency range for RS103 is 30 MHz to 18 GHz. 3.4.11 Electronic discharge (ESD). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-7
48、1196 (AR) 8 3.4.11.1 Helicopter-borne electrostatic discharge (H-ESD). The VMS shall not be damaged and shall operate as specified herein after being subjected to ESD. The VMS shall be charged to potential differences of up to 300,000 volts, with respect to ground potential, across a capacitance of
49、1,000 pf, and subsequently being discharged to ground potential through a series resistance of 1 ohm. 3.4.11.2 Personnel-borne electrostatic discharge (P-ESD). The VMS electronic components, including but not limited to circuit modules and repair parts, shall not be damaged by electrostatic discharge generated by handling during maintenance. The VMS shall not be damaged and shall operate as specifie
