High precision rotary encoder in the application of the feedback servo positioning system

Abstract: the precision rotary encoder in feedback servo positioning system, the application of information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. It is basically a double brush orthogonal unbounded potentiometer. It has a full round ring resistance of materials, the two ends of electricity, two electrical independent brush on mobile. Two brush piece for 90 Angle of mechanical connection between each other. Rotary encoder is often used for the servo. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a high precision rotary encoder in feedback servo positioning system, the application of article details. It is basically a double brush orthogonal unbounded potentiometer. It has a full round ring resistance of materials, the two ends of electricity, two electrical independent brush on mobile. Two brush pieces to each other for 90 & deg; The Angle of mechanical connection. Rotary encoder is often used to take feedback servo positioning system, in this case, the cost of the encoder generally are not important. But the encoder will be used for knob position on certain user interface code, such as the volume knob on the audio system. For the knob, can for a low price, high precision and absolute reading values and choose potentiometer, but they travel co. , LTD. , is usually less than 340 & deg; , or you can choose light machine type rotary encoder, it there is no limit to the trip, but the price is higher, low accuracy, only relative reading values. The attempt to combine the design example, both the advantages of the potentiometer, and the light machine operation characteristics of rotary encoder without boundary. The structure of the encoder adopted standard potentiometer technology, thus facilitating production. It is basically a double brush orthogonal unbounded potentiometer. It has a full round ring resistance of materials, the two ends of electricity, two electrical independent brush on mobile. Two brush pieces to each other for 90 & deg; The Angle of mechanical connection ( FIG. 1) 。 ADC read two signals of microcontrollers, the firmware of the two signals are used to determine a shaft quadrant. Once you know the quadrant, you can use two brush signal to calculate the position of the shaft. When the brush when you arrive at the power supply connection, due to the nonlinear response, should ignore this signal ( FIG. 2) 。 90 between two brush & deg; At the same time in the nonlinear position Angle, and could not be. Today, even if zui basic microcontroller will take a 10 bit ADC, so both signal combined with 11 resolution, or better than 0. 2° 。 If the application does not need absolute reading, or using the software reset, the microcontroller can be ignored. The orthogonal gratuitous potentiometer to provide experience similar to classical simulation of old tuning knob on the radio. It provided a new possibility for the man-machine interface design, can make consumer products at low cost to obtain high sense. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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