• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A digital rotation detecting apparatus of the invention, which is adapted to detect a phase angle θ, of a resolver by using a multiple frequency clock of the excitation frequency for the resolver and a clock of a voltage control oscillator, is detectable of an instantaneous value of the phase angle 0, at a desired time without delay, is also detectable directly of the rotational speed, and requires no low frequency excitation because the excitation frequency for the resolver needs only to be constant.
    公开号:SU1662360A3
    申请号:SU864028241
    申请日:1986-10-03
    公开日:1991-07-07
    发明作者:Каван Йоджи
    申请人:Мицубиси Денки Кабусики Кайся (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to measuring technique, namely, digital devices for measuring rotation.
    The purpose of the invention is to improve the accuracy of measurement of rotation.
    In FIG. 1-4 depict a digital device for measuring rotation, options.
    The digital device for measuring rotation contains a master oscillator 1 of a two-phase alternating current current of a fixed frequency, connected by the first and second outputs to the inputs of a two-phase sine-cosine rotary transformer 2, connected by outputs to the inputs of a detector 3 of the phase difference, a controlled oscillator 4 of a two-phase alternating current, a loop filter 5 in proportion -integral calculation, a voltage-controlled pulse generator 6, a counter 7 and an output bus 8. In this case, the phase difference detector 3 is connected to other inputs and to the outputs of the controlled generator 4 of two-phase alternating current and connected through a loop filter 5 of the proportional-integral calculation with the input of the voltage-controlled generator 6 pulses connected by the output to the input of the counter 7.
    The digital device for measuring rotation also contains a reversible counter 9, connected to the output bus 8 by an output, connected by a first input to a controlled voltage output of a pulse generator 6 and connected by a second input to a third output of a fixed-frequency two-phase alternating current oscillator 1. The output of the counter 7 is connected to the input of a controlled, generator 4 of a two-phase alternating current.
    ι
    In the embodiment of the digital device for measuring rotation shown in FIG. 2, the output of the counter 7 is connected to the third input of the reverse counter. 9, connected by the fourth input to the fourth output of the master oscillator 1 of a two-phase alternating voltage of a fixed frequency.
    An embodiment of the digital device for measuring rotation, shown in FIG. 3, comprises a pulse addition element 10 through which the output of the counter 7 is connected to the third input of the reversible counter 9.
    The embodiment of the digital device for measuring rotation shown in Fig. 4 contains a data fixation element 11 through which the output of the reversible counter 9 is connected to the output bus 8. Moreover, the data fixation element 11 is provided with an input control bus 12 connected to its input and connected to the reversible counter 9.
    A digital device for measuring rotation works as follows.
    I
    A two-phase sine-cosine rotary transformer 2 is excited by a two-phase alternating current current of a fixed frequency coming from the master oscillator 1 of a two-phase alternating current current of a fixed frequency. A two-phase signal from a two-phase sine-cosine rotary transformer 2 is supplied to the phase difference detector 3. The phase difference detector 3 determines a phase difference of a two-phase signal of a two-phase sine-cosine rotary transformer 2 and an output signal of a controlled two-phase alternating current generator 4. The phase difference signal from the phase difference detector 3 passes through a loop filter 5 of the proportional-integral calculation to a voltage-controlled pulse generator 6. Controlled by the voltage of the pulse generator 6 produces a sequence of pulses, the frequency of which corresponds to the output voltage of the loop filter 5 of the proportional-integral calculation. Wherein . the counter 7 counts the pulses of the voltage-controlled pulse generator 6, and the controlled two-phase alternating current generator 4 generates a two-phase signal having a phase angle proportional to the counter count 7. The voltage-controlled pulse generator 6 and the fixed-frequency two-phase alternating current generator 1 act on the reverse counter 9 . In this case, the reverse counter 9 operates on the addition of pulses from the master oscillator 1 of a two-phase alternating current of a fixed frequency and on to pray the pulses from a voltage controlled oscillator 6 pulses. The signal from the output of the reverse counter-9 to the output bus 8, characterizes the result of rotation measurement.
    In the embodiment of the digital device for measuring rotation shown in FIG. 2, the counter 9 is additionally affected by the counter 7 and the master oscillator 1 of a two-phase alternating current of a fixed frequency.
    In the embodiment of the digital device for measuring rotation shown in FIG. 3, the counter 7 additionally acts on the reverse counter 9 through the pulse addition element 10, due to this on the reverse. At counter 9, an addition to the value at counter 7 is established by means of a setting signal generated when the phase angle of the master oscillator 1 of a two-phase alternating current of a fixed frequency 2 q becomes zero.
    In the embodiment of the digital rotation measuring device shown in FIG. 4, the value calculated by the reverse counter 9 is supplied to the 2 j output bus 8 through the data fixing element 11. The data fixing element 11 captures the value calculated by the reverse counter 9 each time a single pulse is received via the input control bus 12. In this case, the reversible counter 9 is a mouth of the phases, which is connected by other inputs to the outputs of the controlled two-phase alternating current generator ra and connected through the proportional-integral calculation filter to the input of the voltage-controlled pulse generator connected by the output to the counter input, and an output bus, characterized in that , in order to improve the accuracy of measuring rotation, a reverse counter is introduced into it, connected by the output to the output bus connected by the first input to the output of the voltage controlled eratora pulses and a second input coupled to a third output of the master oscillator of two-phase alternating current of fixed frequency, and the counter output is connected to the input of a controlled two-phase AC generator.
    I
    2. The device according to claim 1, characterized in that the output of the counter is connected to the third input of the reversible counter connected to the fourth input of the fourth output of the master oscillator of two-phase alternating current of a fixed frequency.
    3. The device according to claim 2, which consists in the fact that it immediately enters into a state of readiness for the New countdown.
    权利要求:
    Claims (1)
    [1]
    Claim
    1. A digital device for measuring rotation, containing a fixed-frequency two-phase alternating current oscillator, connected by the first and second outputs to the inputs of a two-phase sine-cosine rotary transformer, connected to the inputs of the difference detector by a pulse complement element, through which the counter output is connected to the third input 35 counters.
    4. The device according to claim 1, characterized in that a data fixation element is introduced through which the output of the reversible counter is connected to the output bus, and the data fixation element is equipped with an input control bus connected to its input and connected to an additional input of the reversible counter.
    figure 2
    类似技术:
    公开号 | 公开日 | 专利标题
    US4475105A|1984-10-02|System for detecting mechanical movement
    Prokin1991|Double buffered wide-range frequency measurement method for digital tachometers
    GB2113932A|1983-08-10|System for detecting mechanical movement
    SU1662360A3|1991-07-07|Device for rotation measuring
    US4417479A|1983-11-29|Electromagnetic flowmeter system having a feedback loop
    EP0120692B1|1992-01-15|Phase modulation type digital position detector
    US3943765A|1976-03-16|Electromagnetic flow meter
    JPS5677759A|1981-06-26|Detecting device of rotational frequency
    JPH0781879B2|1995-09-06|Rotation detector
    SU1256051A1|1986-09-07|Device for executing inverse trigonometric conversions
    JPS5497723A|1979-08-02|Rotor position detector for commutatorless motor
    SU964453A2|1982-10-07|Electromagnetic flowmeter
    SU484471A1|1975-09-15|The method of measuring the magnitude of the phase angle
    SU1195276A1|1985-11-30|Phase-meter of low and infralow frequences
    SU991306A1|1983-01-23|Shaft rotation speed measuring device
    SU991329A2|1983-01-23|Phase comparison device
    SU849091A1|1981-07-23|Instantaneous value frequency meter
    SU935793A1|1982-06-15|Device for measuring rotation frequency
    SU362336A1|1972-12-13|CONVERTER ANGLE OF TURNING SHAFT INTO CODE
    SU685982A1|1979-09-15|Method of measuring parameters of shaft rotation
    SU627405A2|1978-10-05|Angular accelerometer calibration apparatus
    SU1279066A1|1986-12-23|Shaft turn angle-to-digital converter
    SU1429287A1|1988-10-07|Synchronous detector
    GB1100081A|1968-01-24|Phase shift coding system
    JPH0419512A|1992-01-23|Rotational angle detector
    同族专利:
    公开号 | 公开日
    EP0224671B1|1991-12-04|
    KR900002114B1|1990-04-02|
    BR8604820A|1987-07-07|
    CA1270046A|1990-06-05|
    JPH0438291B2|1992-06-24|
    AU571792B2|1988-04-21|
    AU6250286A|1987-04-30|
    DE3682751D1|1992-01-16|
    EP0224671A2|1987-06-10|
    US4734655A|1988-03-29|
    KR870004307A|1987-05-08|
    EP0224671A3|1988-10-19|
    JPS6281526A|1987-04-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3564368A|1968-01-10|1971-02-16|Gen Electric|Spindle speed control monitor|
    US3828234A|1973-05-14|1974-08-06|Rca Corp|Motor speed control system|
    GB1527741A|1975-03-25|1978-10-11|Rca Corp|Brushless dc motor rotation control|
    US4355305A|1980-04-24|1982-10-19|The Bendix Corporation|Resolver processor with error detection|
    JPH0346762B2|1982-01-26|1991-07-17|Tokyo Shibaura Electric Co|
    JPH0415418B2|1983-04-28|1992-03-17|Shinko Electric Co Ltd|
    JPS60187864A|1984-03-08|1985-09-25|Sanyo Denki Kk|Rotational speed and its position detector using resolver|US5140245A|1990-09-24|1992-08-18|Westinghouse Electric Corp.|Pmg-based position sensor and synchronous drive incorporating same|
    EP0735691A3|1995-03-31|1998-04-29|Siemens Aktiengesellschaft|Phase control circuit for exciting a resolver in digital control systems|
    KR20000045995A|1998-12-31|2000-07-25|추호석|Speed measuring method of tachometer|
    JP3621335B2|2000-09-05|2005-02-16|アルプス電気株式会社|Rotational angular velocity detection device, rotational angular velocity detection method, and automobile using the device|
    US6989697B2|2004-01-15|2006-01-24|Organicid, Inc.|Non-quasistatic phase lock loop frequency divider circuit|
    US20070159119A1|2006-01-10|2007-07-12|Caterpillar Inc.|Power system|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP60222256A|JPH0438291B2|1985-10-04|1985-10-04|
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