1、t- t F- c MlL-1-8691A (AS) AM EN DM EN T- l 31 JANUARY 1958 mia amerriment forms a part of wilitprl Specification ICIGI-869lA(ASG) dated 17 October 1955 and has been approved the Departiaent of the Mr Force ard by tim Navy Bureau of Aeronautics. Page 1, paragraph 1.2, mSizen aad Weight“ columns: Del
2、ete aDd substitute1 m- Haximum Size (Inches) Weight (Lbs ), 344 square tv and the bmh output at the junctioL 41 a 530,515 drn fl percent resistor .ad a 0.l microfarad 2 1 percent capacitor connected in series to the brushes of the potentiometer will be 62 a.5 degrees. The 530,515 ohm resistor shall
3、be corinected to pin P ami the 0.01 microfarad capacitor connected to pin I with the center tap of the 30 cps supply voltage grourided In this circuit. .grounl voltage by 62 degrees, with lncreasiw lead axle resiilting in increasing bear- Micotions of the indicator pointer. angular accuracyd the pot
4、entiometer shall be f 1.5 Jegrees as the potentiometer is pmitiomd by the direct servo drive in 30-degree bearing increments through one revolution of the Indicator pointer startiy from the O degree setting.“ Bearing measuring pa tenticnneber accuracy.- The resistance OS ttm putan- The brush output
5、junction to graund voltage shall lead the pin It to Wen tested aa A phase shifter, the . ._. 2 i Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-.- . .- I I I ,- /I i 5 w Provided by IHSNot for ResaleNo reproduction or networking permitted without li
6、cense from IHS-,-,-r WHITE J i LLCW 1 I UOTOR-RATE OE!lERCl?aR R-101-24 . B1701 . . BEARING WEASJRINO moLm AY -163-AL 81703 ttARHoNTc RESOLVER AT-5rD -3fl 81704 . SYNCHRO Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page u, paragraph 1i.2.1.2.51 a
7、1.2.1.2.5 m.25 degrees by the hmonic resolver stator nul, the bearing measuring resolver ahall be 80 set tht when the rotor is excited irOii a 270-0hrn source Impedance through a 560 oh il percent reciston at a frequency of 135 il cps, and uhen the magnitude of the Wltage BOWCQ 18 adjusted until the
8、 wltage between JI N and pin P is 0.7 volt, the +se shift will be 206 il degree betueen the Fnput into the 83O-ohm resistor and the stator output with a U7,920 ohm fi percent resistor and a 0.01 microfarad fl percent capacitor connected In series. and the 0.01 microfarad capacitor to pin R. into the
9、 83O-ohm resistor by 206 *l degree with decreasing lead angle resulting in decreasing pointer Indications. approxbnately 35ldepreae. of the indicator pointer for one revolution of the resolver and every 30 degrees of the Indicator pointer for one revolution of the pointer and determhed by the resolv
10、er nulls, shall not exceed a spread of 1.6 degrees when tested by feeding the harmonic resolver output to a servo amplifier which Vili drive the Indicator to the null positions of the harmonic Delete and mbetitutr BearLng iieasurlng resolver accuracy.- Ylth the pointer servoed to 350 . . The 117,920
11、0hn resistor shall be connected to pln T Plns P and S shall be grounded Ln this - circdt. Thm comn resistor and capacitor junction output shall lead the input voltage . The null betueen pin R and pin S shall occur at The error in angular accuracy measured for every 5 degrees .I. E- . . -:. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
