RussianPatents.com
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Shaft angle-of-turn-to-code converter. RU patent 2260906. |
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FIELD: computer engineering; data processing systems. SUBSTANCE: proposed device designed to convert shaft angle of turn to code has synchro resolver transducers, switching unit, integrators, functional voltage-to-code ratio converter, threshold elements, 4NAND gate, integrator start and stop unit, counter, work scale shaper, and digital comparator. EFFECT: enhanced speed of converter. 1 cl, 1 dwg
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![]() The proposed digital converter of angle (DCA) maintains the initial accuracy of angle-to-code conversion by means of automatic compensation of components of errors of the kind of sin4α, sin8α and errors of the higher order, which may appear during DCA operation. The aim is achieved without DCA dismantling from a control object when using in the DCA the ordinary (non special) two-phase angle-data transmitter. The technical result is achieved owing to: 1) efficient determination of the current error of angle-to-code conversion in the mode of functional control, 2) formation of the corresponding array of correction codes, 3) holding of the array in a reprogrammable storage device and 4) using this device for shaping an analog correcting signal in the operation mode of functioning. The specified array is formed with analog-to-digital converter, included in DCA; correcting signal is shaped with digital-to-analog converter, also included into DCA. |
![]() Device has light source, optically connected to input of single-channel bitmap modulator, amplifying photo-detector, adder, direct voltage source, null-organ, bearing frequency generator, pulse generator, output of which is an output of bitmap interpolator, band filter, and also has comparator, first input of which is connected to output of bearing frequency generator, support voltage source, output of which is connected to second input of comparator, integrator, input of which is connected to comparator output, output of which is connected to light source. |
![]() Apparatus has primary information sensor with two sensitive members connected to different circuits of digital RC-generator of rectangular pulse connected in series with frequency divider and with frequency meter, control unit, reference signal generator, two differential amplifiers, demodulator, comparison circuits and two actuating mechanisms. Control unit is connected to RC-generator, frequency meter and reference signal generator. Actuating mechanism is connected through comparison circuit to demodulator whose inputs are connected through differential amplifier to frequency divider and reference signal generator. Output signal is determined from formula. |
![]() Proposed converter has synchro resolver transducers, switching unit, four integrators, voltage-to-code ratio functional converter, threshold elements, 4AND-NOT gate, integrator start and stop unit, counter, two inverters, two selector switches, and NOT gate. |
![]() Device has sensors block, block for forming signals of azimuth binary code, two adders, strobes forming block, control block, rotation imitator, correction code detector, clock pulse generator, binary counter, multiplexer, operative and constant memory devices, static register. |
![]() Method includes forming of two supporting harmonic oscillations and where t - time of production from supporting oscillation of harmonic oscillation and from harmonic oscillation - oscillation and determining multiplication result integral for these oscillations: where Tu - integration interval. |
![]() Proposed device that can be used in high-reliability computer-aided monitoring, data processing and acquisition systems has two analog-to-digital converters, two switching units, two sensors, and control unit. This device is characterized in low failure probability, reliability of conversion when implementing structure of analog-to-digital computer capable of operation in two modes of parallel and/or serial polling of sensors, and in ability of its on-line reconfiguration in the event of failure by self-check results of each analog-to-digital converter. |
![]() Proposed angle-of-turn-to-code converter has synchro resolver sensors, switching unit, inverter, two adding amplifiers, two integrators, functional voltage-to-code converter, threshold elements, 4NAND gate, integrator triggering and stopping unit, and counter. |
![]() Device has coordinate scale having raster and code path of which the first one is represented as a chain of windows forming regular raster and the second one is represented as a chain of code windows, reading unit having illumination unit, analyzing raster mask, raster path photodetectors, and multi-element raster path photodetector. The raster path photodetectors, and multi-element raster path photodetector are connected to recording and analyzing unit, respectively. The reading unit has analyzing code mask being two window paths arranged so that succession period is a multiple of code step and window width is equal to the code step. The windows on the paths are shifted by a value equal to half code step. |
![]() Device has a setoff transducers kinematically connected to gantry shaft, angular information transformer, code transducer, adder, control unit, clock pulse oscillator, delay circuit, binary pulse counter, two static registers, digital comparator line and RAM unit. |
![]() Proposed converter has differential amplifiers, comparator, dc amplifier, analog memory device, control device, serial-to-parallel code converter, modulo M counter, switches, inverter, and input stage for determining polarity and inverting negative voltages. |
![]() Proposed converter has two registers, NOT gate, angle-code-to-sine/cosine-code functional conversion unit, two digital-to-analog converters, reference voltage supply, pulse generator, counter, two capacitors, subtracting amplifier, two modulators, threshold unit, two selector switches, two buffer followers, threshold voltage supply, comparison circuit, D flip-flop, and reference code shaper; all these components enable functional control of converter during recording pulse time and supply of signal indicating normal or abnormal operation of converter to user thereby essentially raising its self-control ability and yielding profound and reliable information. |
![]() Device has a setoff transducers kinematically connected to gantry shaft, angular information transformer, code transducer, adder, control unit, clock pulse oscillator, delay circuit, binary pulse counter, two static registers, digital comparator line and RAM unit. |
![]() Device has coordinate scale having raster and code path of which the first one is represented as a chain of windows forming regular raster and the second one is represented as a chain of code windows, reading unit having illumination unit, analyzing raster mask, raster path photodetectors, and multi-element raster path photodetector. The raster path photodetectors, and multi-element raster path photodetector are connected to recording and analyzing unit, respectively. The reading unit has analyzing code mask being two window paths arranged so that succession period is a multiple of code step and window width is equal to the code step. The windows on the paths are shifted by a value equal to half code step. |
![]() Proposed angle-of-turn-to-code converter has synchro resolver sensors, switching unit, inverter, two adding amplifiers, two integrators, functional voltage-to-code converter, threshold elements, 4NAND gate, integrator triggering and stopping unit, and counter. |
![]() Proposed device that can be used in high-reliability computer-aided monitoring, data processing and acquisition systems has two analog-to-digital converters, two switching units, two sensors, and control unit. This device is characterized in low failure probability, reliability of conversion when implementing structure of analog-to-digital computer capable of operation in two modes of parallel and/or serial polling of sensors, and in ability of its on-line reconfiguration in the event of failure by self-check results of each analog-to-digital converter. |
![]() Method includes forming of two supporting harmonic oscillations and where t - time of production from supporting oscillation of harmonic oscillation and from harmonic oscillation - oscillation and determining multiplication result integral for these oscillations: where Tu - integration interval. |
![]() Device has sensors block, block for forming signals of azimuth binary code, two adders, strobes forming block, control block, rotation imitator, correction code detector, clock pulse generator, binary counter, multiplexer, operative and constant memory devices, static register. |
![]() Proposed converter has synchro resolver transducers, switching unit, four integrators, voltage-to-code ratio functional converter, threshold elements, 4AND-NOT gate, integrator start and stop unit, counter, two inverters, two selector switches, and NOT gate. |
![]() Apparatus has primary information sensor with two sensitive members connected to different circuits of digital RC-generator of rectangular pulse connected in series with frequency divider and with frequency meter, control unit, reference signal generator, two differential amplifiers, demodulator, comparison circuits and two actuating mechanisms. Control unit is connected to RC-generator, frequency meter and reference signal generator. Actuating mechanism is connected through comparison circuit to demodulator whose inputs are connected through differential amplifier to frequency divider and reference signal generator. Output signal is determined from formula. |
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