There are many types of electronic speedometers. The principles of different types of electronic speedometers produced by digital speedometer supplier are also different, but the core idea is to convert the measurement of length to the measurement of the number of count points at a fixed frequency.

In the process of exploring the on-line instrument measurement of the speedometer, we have experimented with the weighing method and the standard line method, and there are deficiencies. Each time the speedometer reaches the batch setting value, the batch relay has a short signal output, and the batch value is automatically reset to zero. The total value continues to accumulate, and the total amount relay output stops when the total amount is reached. The speedometer is used for the input signal of the rotary encoder. When the set length is reached, the length amount (setting 1) automatically resets to restart the length counting, and the number of roots (batch value setting 2) increases by 1.

Speedometer is an electronic device with fairly accurate technology. It has strong anti-interference ability. It is very popular in motorcycle speedometer supplier, and it is suitable for measuring the length of cables of any cross-sectional shape.