Electronic crane scale, electronic crane scale price, electronic crane scale manufacturers - weighing reading stability time

Electronic crane scale, electronic crane scale price, electronic crane scale manufacturers - weighing reading stability time

2017-11-9 Zhongyuan Weighing Apparatus Factory

The analysis and classification of various interference factors of the electronic crane scale, find out the various cheek-week components superimposed on the sensor output 佶3, and design a second-order low-pass active filter in the input path of the display instrument to enhance The suppression of the interference signal of I≥2Hz reduces the reading stabilization time from tens of seconds to less than 3?10 seconds, and has received good results.

Interference factors of weighing signals of electronic crane scales

By analyzing various types of electronic crane scales under different lifting objects and different motion states, the interference factors affecting the length of time that the electronic crane scale readings are stable can be divided into the following categories:

1. Some vibrations and disturbances with a higher frequency. For example, the vibration of the crown block, the movement of the hook wire, and the string vibration at the ends of the long material will add some signal components with higher buccality to the output of the sensor. Electromagnetic interference on site (mostly 50Hz buccal interference) is also superimposed on the sensor's output signal.

2. Various short-term impact signals. Such as the sudden start of the crane, the motor and the lifting motor, and the collision of the lifting object, etc., will cause the memorization to accept the additional force in the direction of gravity, and a short-term output signal will appear.

3. Slow, regular movements. Such as the swing of the hook, the rotation of the suspended object, etc., the cycle is generally between a few seconds to a few seconds.

The output of the sensor is actually a superposition of various input frequency nickname components, especially the low-beep interference signal component and the short-lived shock signal, which has a serious effect on the fast and stable weighing of the electronic crane scale.