How is a coded switch used correctly?

来源:Dongguan Yanghan Industrial Co., Ltd.  时间:2023-06-26

The accuracy of a coded switch is a measure of the ability to determine the position of any pulse relative to another pulse within a selected range of resolution. Accuracy is usually expressed in terms of angles, angular minutes or angular seconds, and has no relationship to resolution.

      The working principle and performance of the coding switch, as well as the application is almost these, the demand for coding switch in the whole market is great, of course, compared to many other similar electronic components, the price of the coding switch is much higher. But this is not comparable, they each play a different role. If you use a coding switch, you must understand the precautions for using an encoder!

    Precautions for the use of coding switches:

     1. The rotary coding switch should be kept in the condition of delivery at room temperature and humidity, not exposed to direct sunlight and not generating corrosive gas, and should be used within 6 months from the date of delivery.

     2. After the package is opened, the unused rotary code switch should be sealed with a polyethylene bag to keep it away from the air, such as a sealed bag, and should be kept in the above environment and used as soon as possible.

     3. The coding switch signal calculation method should take into account the speed of operation, the sampling time of the signal and the microcomputer software in the electronic circuit.

     4. When designing the software of the coded switch, it is necessary to pay attention to the state of the output waveform at the positioning point, and it is recommended to use one of the A-phases as a reference.

     5. In the design of the design to take into account the noise, it is recommended to use R/C filtering circuit.

     6. When designing the connection line of the PCB board, if the C terminal pin of the coding switch is grounded, it is recommended that the E switch pin be designed to be grounded.

     7. Rotate the coding switch must not touch water, otherwise it will lead to abnormal output waveform