detecting circuit การใช้

• A detect circuit design of surface electromyography
• High - precision differential capacitance detecting circuit for mems acceleration sensors
• Colour detect circuit
• Design of an optic - electric detecting circuit with low noise and its noise calculation
• Carry detecting circuit
• The tma has alarm detect circuit and can report either one lna or both lnas failure
• Photoelectric detecting circuit is constituted of four parts , i / v conversion , lock - in amplifier , low - pass filter and operation
• The hardware design mainly includes signal detect circuit , electrical level translation circuit , microcontroller interface circuit , data communication circuit and so on
• The effect of the hardware system is ensured through the reasonable designation of a band - pass filter coefficient , and several simulations and experiments for this detecting circuit
• The chapter of hardware design first expounds the whole design . the several primary circuit are designed , including power circuit , controlling circuit , detecting circuit and the dsp quadrature encode circuit
• 3 . the sensing circuit tuning fork micromechanical gyroscope is designed . as for the detecting circuit of the capacitances , the " charge sense " circuit are improved , and the detecting bridge is designed
• In the blue print of the analog , author utilize the big dynamic vga to realize the if amplifier and use the audion to carry out the 80db agc , through the improvement of the traditional detect circuit , extend the dynamic range of the detector
• Trough the analysis of the output of the detecting circuit of the capacitances , the processing circuit is designed , and the angular rate is separated : parameters computed of the gyroscope and the performance analyzed of the circuit show that the circuit can reach the base requirement
• Then the hardware frame of the servo driver is introduced , especially the design of the dsp minimal system , current detecting circuit , speed and position - acquiring circuit , power circuit based on ipm are further researched . the software frame of the servo system is introduced and the flow chart is given . many experiments have been done on improving the speed and current response performance
• The power circuit of the system adopts the voltage frequency conversion structure of ac - dc - ac , and is composed of the commutation circuit , filter circuit and intelligence power module ( pm15rsh120 ) . control circuit takes the dsp chip tms320lf2407 as core , including the pwm signal occurrence circuit , detect circuit of stator current and direct current voltage of generatrix , drive circuit of intelligence power module , detect circuit of speed , protect circuit of system etc . all of this builds the full digital vector control system of asynchronous motor
• Secondly the detection precision is only related to the synchronization phase but not to the amplitude of the mainline voltage because that it uses the optimized pulses synchronous with the mainline voltage as modulation signals . thirdly it decreases the requirement of the input low pass filter and eliminates the error resulting from the direct component and even harmonics of load current . the most significant merit is that it can eliminate the effect of a few low order odd harmonics and the detecting circuit is easy to be implemented