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How to select the incremental encoder resolution?

by:HENGXIANG     2020-12-04
Release date: sensing technology co. , LTD. , zhejiang province _ encoder - 2020 9 - Browse 2 212 times the incremental encoder is converting displacement into periodic signal, then convert the electrical signals into count pulse, with the size of the displacement of the number of pulse said. Along with the increase of intelligent and energy saving construction investment, the incremental encoder industry has bigger market opportunity, enterprises should continuously develop related industry market. The encoder to introduce the choice of the incremental encoder resolution? Three methods of incremental encoder resolution options: number one, will be the choice of lap pulses PPR and maximum speed of motor drive incremental encoder comprehensive consideration. Computational work frequency, ensure it will not cause under the maximum speed pulse output frequency than the encoder pulse output frequency and the input frequency of the controller. Second, lap pulse number of choice for the required accuracy control as far as possible, so that can reduce the scaling. Measuring range, such as 12 m measurement shows only 1 m/step ( Low resolution) 12 PPR, can choose, if you need to show 0. 01 m/step ( High resolution) Should choose more than 1200 PPR or encoder. If you choose the 600 PPR encoder measurement shows zero. 01 m/step accuracy, it needs to be scale conversion, 0. 02 m/step conversion of 0. 01 m/step. Third, pay attention to may use controller with 2 or 4 times the frequency doubling function, according to the above examples, 0. 01 m/step measuring precision, choose 600 PPR and 2 times or 4 times 300 PPR frequency, can achieve the same effect. Sensing technology co. , LTD. , zhejiang province, has more than 20 series over 100 varieties of high quality products: incremental photoelectric encoder, magnetoelectric incremental encoder, photoelectric encoder, absolute type magnetoelectric absolute encoder, etc.
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