Method for calibrating the sensor of a 100 ton load cell

NegotiableUpdate on 05/26

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Overview

To ensure the correctness and accuracy of the measurement of the 100 ton load cell, the force sensor must be calibrated before use. The accuracy of calibration will directly affect the measurement accuracy of the sensor. Although the performance indicators of the force sensor have been calibrated and calibrated item by item before leaving the factory, regular calibration should be carried out during use to ensure measurement accuracy. In addition, due to changes in the testing environment, the sensitivity of the system also changes. Therefore, it is necessary to recalibrate the sensitivity and other performance indicators of the entire testing system. The calibration of force sensors can be divided into two aspects: static calibration and dynamic calibration.

Product Details

to ensure100 ton dynamometerThe correctness and accuracy of the measurement require calibration of the force sensor before use. The accuracy of calibration will directly affect the measurement accuracy of the sensor. Although the performance indicators of the force sensor have been calibrated and calibrated item by item before leaving the factory, regular calibration should be carried out during use to ensure measurement accuracy. In addition, due to changes in the testing environment, the sensitivity of the system also changes. Therefore, it is necessary to recalibrate the sensitivity and other performance indicators of the entire testing system. The calibration of force sensors can be divided into two aspects: static calibration and dynamic calibration.

Static calibration is the process of applying a series of standard forces to a force sensor, measuring the corresponding output, and then determining the relationship between the two

Draw a calibration curve based on the corresponding relationship, and then calculate various performance indicators that characterize the static characteristics of the sensor, such as50 ton dynamometerStatic sensitivity, linearity, hysteresis, repeatability, stability, and lateral interference. For multi-directional force sensors, it is also necessary to measure the degree of cross interference in each direction to determine the effect of the force perpendicular to a certain direction on the reading of the force in that direction.

Static calibration is usually performed on a specially designed calibration platform. The magnitude and direction of the applied standard force should be very precise, and its force value must comply with the regulations and requirements of the Institute of Metrology for value transmission. The loading methods used during static calibration include: weight lever loading system, screw standard force measuring ring loading system, standard force measuring machine loading, etc.

2. Dynamic calibration of sensors used for dynamic testing of transient and alternating forces, only for100T dynamometerStatic calibration is not enough, and sometimes dynamic calibration is also necessary. The purpose of dynamic calibration is to obtain the dynamic characteristic curve of the sensor, and then obtain the natural frequency, damping ratio, operating frequency band, dynamic error and other parameters reflecting the dynamic characteristics of the force sensor from the dynamic characteristic curve. The method of dynamically calibrating a force sensor or the entire force measurement system is to input a dynamic excitation force and measure the corresponding output to determine the frequency response characteristics of the sensor.