The performance characteristics of electromagnetic flow meter scale

Abstract: the performance characteristics of electromagnetic flow meter scale information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. According to the characteristics of the electromagnetic flow meter transducer for converter must have the following party and performance. 1. Stability of linear amplification electromagnetic flowmeter to linear amplifier with high stability, can put a few millivolts traffic signal amplified to a high enough electricity. More flow meter manufacturers choose model price quote you are welcome to inquire, here is the performance characteristics of electromagnetic flow meter scale article details. According to the characteristics of the electromagnetic flow meter transducer for converter must have the following party and performance. 1. Stability of linear amplification electromagnetic flowmeter to linear amplifier with high stability, can put a few millivolts traffic signal amplified to a high enough level, 2. Can distinguish and restrain all kinds of jamming signal for orthogonal qian, in addition to the interference of diving in the electromagnetic flow meter transducer adjusting mechanism to zero, also to set up the anti-jamming mechanism in converter, in order to eliminate the remaining orthogonal disturbance signal of the transmitter. Otherwise, these remaining orthogonal interference signals will also be the main amplifier amplification, yan see affects its work. Converter orthogonal interference suppression method is put after the main amplifier amplification of orthogonal interference signal identification and separation, and then feedback to the main amplifier input, to offset the input in orthogonal interference signals. For in-phase interference, mountain in the cause of more complex, suppression method is more also. At parties, in the transmitter, electrodes and excitation coil on son any shape, size and performance parameters of doing balanced symmetrical, less na don't strictly screen 9, in order to reduce the distributed capacitance between electrodes and excitation coil. In addition, individual and good grounding is gong to reduce the grounding resistance can be reduced due to stray, Bi flow resulting in phase perturbation potential. In terms of converter must also improve in-phase interference resistance, usually in the preamplifier stage of the converter adopts differential amplifier circuit. This is by using differential amplifier with high common mode rejection ratio, make into the electromagnetic flowmeter converter in phase interference signal at the input is not amplified and suppressed. If the converter in the front of the differential amplifier stage increase the constant current source circuit, is better able to suppress interference in phase. 3. Sufficiently high input impedance converter must have enough high input impedance, in order to overcome the impact of resistance change in the transmitter, improve the measurement accuracy. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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