A method for realizing low power consumption of electronic multi-turn encoder counting turns
A realization method and low power consumption technology, which is applied in the direction of instruments, conversion sensor output, measuring devices, etc., can solve the problems of high power consumption and inability to record the number of rotations for a long time, so as to achieve low power consumption and save battery power Effect
Active Publication Date: 2016-06-15
CHANGCHUN YUHENG OPTICS
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Problems solved by technology
[0004] The invention provides a low power consumption realization method of counting circles of an electronic multi-turn encoder to solve the problem that the traditional electronic multi-turn encoder cannot operate for a long time when the encoder rotates due to high power consumption after power-off. The problem of counting the number of turns
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Embodiment Construction
[0012] (1) Using a grating with absolute position information of a single-turn vernier code and multi-turn two-digit Gray code information, such as figure 1 shown;
[0013] (2) The multi-turn counting part and the single-turn part work independently, so that the working voltage of the photoelectric receiver receiving the vernier code is U1~U2, and there is no power consumption below U1; the working voltage of the gray code receiving area is U3 ~U2, and U3<U1<U2, when the encoder is working in the state of backup power supply, the working voltage of the photoelectric receiver is between U3~U1, and the minimum working voltage of the photoelectric receiver receiving the vernier code pattern is U1 It is higher than the minimum working voltage U3 of the part receiving the Gray code image code. At this time, the area receiving the vernier code in the photoelectric receiver does not work, and there is no current consumption. Only the area receiving the Gray code consumes current, so ...
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The invention relates to a method for realizing counting the turns of an electronic type multi-turn encoder with low power consumption, belonging to a method for realizing counting the turns of an encoder with low power consumption. A raster provided with the absolute position information of single-turn vernier code and multi-turn two-bit Gray code information is adopted, a multi-turn counting part and a single-ring part independently work, the multi-turn counting part works in an intermittent way and drives a luminescent tube and a photoelectric receiver to work during the working time T1, and the multi-turn counting part stops powering to the photoelectric receiver and the luminescent tube in a dormant state. The method provided by the invention has the advantages of being capable of recording the rotating turns with low power consumption under the condition that the encoder rotates after the power down.
Description
technical field [0001] The invention belongs to a low-power-consumption realization method for counting circles of an electronic multi-turn encoder, which is applied in the fields of high-grade numerical control machine tools, servo motors, mechanical arms and the like, where it is required to measure the angular position and the number of rotations at the same time. Background technique [0002] The traditional single-turn photoelectric encoder has a light-emitting tube, a grating with a vernier code pattern, a photoelectric receiver that matches the grating pattern, and a single-turn decoding circuit. The encoder grating has a vernier code pattern, and the photoelectric receiver will communicate with it. Matching, when the light-emitting tube and the photoelectric receiver are working at the same time, the photoelectric receiver will output 12 analog signals after receiving the optical signal divided by the disk code, and the 12 analog signals are used to decode the single-...
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IPC IPC(8): G01D5/347
Inventor 王忠杰徐文东
Owner CHANGCHUN YUHENG OPTICS