1、 - . - . . . -I_._ . _._ . - . . . . .I . . . -. . . - . !. ., . - MIL-C-23331 (OS) Amendment 1 14 June 1974 hl1 L I TARY SPEC I FI CAT I ON . Cores for Search -Coil Assemblies - . . -.-.-. . .-., This amendment forms a part of Military Specification MIL-C-23331 (OS) of 11 June 1962 and has been app
2、roved by the Naval Ordnance Systems Command, Department of the Navy. By this amen Naval Ordnan speci f i cati o “4-23331 ( Paragraph 4.1 1 , second 1 i ne , change: I .sample of 1 O cores. I Page 1 Page 5 . To: Paragraph 4.3.1.1 (a) change to read: Test Sol enoi d Coi 1 Assembly, Drawi ng 321 2308 ;
3、II Delete: 4.3.1.1 (b) in its entirety Add: b. Recorder, ink writing, strip chart indicating: (1 (2.) Calibrated Accuracy: Span: t0.25% of span or 1 v, I .sample of cores. , .I1 “4.3.1.1 a. Search Coil Page 6 Input: D-C voltages (1300 v max. upper scale 1 imft) D-C currents (with ex terna1 droppi ng
4、 resistor) . whichever is greater, . Zero Position: k(0.25 +.l X suppression ratio) % of span or . .-. . .- . -.-, . .- . . 1 microvolt, whichever is greater. (3) Dead Band: 0.15% of span (0.3% on 0.1 mv span). (4) Span Step Response Time: Less than 0.5 second. Same for 50 or 60 cycle operation. (5)
5、 Frequency Response: Down less than 1% of full scale ,for a 5 cps, 10% of full scale peak-to- peak sine wave input. (6) D-C Voltage Spans: 19 discrete calibrated full scale steps of 0.1, 0.2, 0.5, 1, 2, 5, 10, 20, 50, and 100 millivolts and 0.2, 0.5, 1, 2, 5, 10, 20, 50, and 100 volts. FSC 1350 - Pr
6、ovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. I MIL-C-23331 (1) 13 777730b 0303273 T m MIL-C-23331 (OS) Amendment 1 (7) Zero Positioning: + 100% to -1000% of span. Rotary switch, 11 fixed zero positions with continuous vernier adjustment to interme
7、diate positions. (8) Voltage Reference: Double Zener diode bridge. (9) Input Impedance: Potentiometric on millivolt range - Infinite at balance, minimum off balance impedance of 25,000 ohms (a.c or d.c) per millivolt of span, 1 megohm on 100 mv span. Voltage spans have constant 4 megohms regardless
8、of bal ance position. (10) Source Impedance: Maximum source impedance for specified perfomance - Millivolt spans - 25,000 ohms per millivolt of span; Voltage spans - 10,000 ohms for 0.25%1oading error regardless of span. (11) Damping: Adjustable to prevent overshoot on full scale (12) Chart and Scal
9、e: 6“ calibrated width. Evenly or partial scale step functions. graduated in percent from -2 to t102 reading from right to left. Paper continuously ruled with time lines in tenths of an inch; 122 feet per roll. Paper can be continuously rerolled on take-up reel or driven out bottom of chart platen b
10、ehind lower guide bar. Adjustable sloping chart platen, removeable chart transport for rep1 acing charts. (13) Chart Speeds: 10 fixed speeds of 10, 5 , 2 , 1 minutes per inch and 40, 20, 10, 5, 2, 1 seconds per inch plus “Stand By.“ Note: Honeywell Model No. 1931 1-002-000-01 , Electronic 193 Lab Re
11、corder , has met the foregoing requirements. Subparagraph (c), change to read: or 1. Subparagraph (d) , delete in i ts entirety and reletter remainder of subparagraphs accordingly without parenthesis c. Transformer Mark 17 Mod O . ,. i r:;! . . . . . . . . . ,. . . i . - -. . . _. . . . . ,. . I . .
12、 . 1 . -._-_ .- -._._. , . . . . . , . I . . . . . . . -. . ._.-, . , . . -_ . ._. . _- . . . . . , . . . . . . . r.- . . - .-._.-_ . .* - ._. . - . . _. . t . I -. . . - _- . . . . . e :-. : . I: . . .- - . ,. . - *. “ . . _._- - ._. - ._ t:;: .-._ . _._ . . -. . _ . - , :., r, I. . . . *- , . c.-.
13、 ._ . . . I_ . - . I . . c - _.C _. - . . 1 . b d. Fixed Resistors: One each (R1) 10 ohms, 3%, 5 watt (R2) 100 ohms, 3%, 5 watt . -_ .- . 2 / xr - - . . . . . 1 . . . . - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- . . . . . -._ . . - . . - . .
14、MIL-C-23331 (OS) Amendment 1 Page 6, paragraph 4.3.1 .l , continued e. Rheostats: f. Milliameters: One each (R3) 0-5 ohms, 3 turns, 3 watt One each (Ml) capable of reading 450 -+2 milliampers (ma), calibrated at 450 ma, One each (M2) having two ranges with the following capabi 1 i ties : (R4) 0-2000
15、 ohms, 10 turns, 3 watt Low Range - 0-10 ma, accuracy f 0.05 ma, High Range - 10-100 ma, accuracy f 0.5 ma, g. Single Throw Switch One each. (Sl) - must carry 5 amperes inductive current at 6 volts; contact resistance not greater than 0.01 ohm. ca?iibrated at 5.00 ma. calibrated at 30.0 ma. .- - _-.
16、 h, Current Source - one 6-volt storage battery Page 7 Paragraph 4.4.3.2, after number, add: In al 1 subparagraphs , delete parenthesis from subparagraph letters and add a period after the letters. In subparagraph a., second line, change: To: 4.3.1.1 a. in subparagraph b., first line, change: 4.3.1.
17、1 (c) Ninth line, change: 4.3.1.1 (b) (M101) 4.3.1.1 (a) To: 4.3.1.1 c. To: 4.3.1.1 b. Eleventh line, change: 4.3.1.1 (i) - . . .- To: 4.3.1.1 h. -.- Delete: fluxmeter (2 places) Add: recorder (2 places) In subparagraph c, seventh line, change: - 4.3.1.1 (h) To: 4.3.1.1 g. . - -. . 7 .; . . . . 3 Pr
18、ovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. . MIL-C-23331 (1) 13 H 06 0303275 3 H - = - - = - - MILyC-23331 (OS) . Amendment 1 Page 8, Paragraph 4.4,3.2 continued, Subparagraph c., tenth line, change: Subparagraph d. change to read: connected in
19、series to the recorder, This connection shall be made in such a way that when the primary circuit is opened, the transformer tends to give a recorder deflection to the left and the solenoid tends to give an opposite recorder deflection to the right. Correct polarity can be established by energizing
20、each primary .separately, in turn. II 4.3.1.1 (i) To: 4.3.1.1 h. “The secondaries of the solenoid and the transformer shall be Page 9 Delete Fibure 2 and add new Figure 2, Page 5, this amendment. Page 1 O , Paragraph 4.4.3 2 continued , Subparagraph g. , change to read: center the recorder pen.“ Sub
21、paragraph h., change to read: sufficiently long for the recorder pen to settle down to the zero center position, Break the current.“ Subparagraph i., change to read: “If the area under the curve, after the switch is opened, is greater to the left of the zero position, the core has failed to meet the
22、 requirement of 3.2.2.2. after the switch is opened, is greater to the right of zero or the left and right areas are equal, the. core acceptable. (The 95 percent factor has already been allowed for in the current values specified in Step e. above.)“ Paragraph 4.4 .=3 3; after number, add : Paragraph
23、 4.4.4, after number, add: “With the recorder off, Hold “Make the current for a period of a few seconds. If the area under the curve, (M102) Page 11 (Pl1 03) Custodian : NAVY-OS 4 Prepwing Activity : (Project No. 1350-NO28) NAVY-OS . .I p:. ,p.- . . i:. . . F . _._I._ _._ l b. v I . TEST SOLENOID IT
24、EM 4.3.1.1 a. 7 I 56 3 O0 4 2 n I ITEM + .4,3.l.l h. =. !-, 6 v JR-ITEM 104.3.1.1 d. ITEM 4.3.1,i g . RHEOSTAT ITEM 4.3.1.1 e. ITEM 4.3.1.1 f. 4.3. I. I e, CIRCUIT FOR PERMEABILITY TEST OF CORES FIGURE 2 5 *US. GOVERNMENT PRINTING OFFICE: 1974-713455/6737 . . . . I . . i . . . E-: I. . , I. ._._. . . . . 0 . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
