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Parallel Beam Load Cell The Premise
Hanzhong Quanyuan Electronic Co.,Ltd | Updated: Oct 08, 2016


  • The Premise of Parallel Beam Load Cell:


Correctly loading is the precondition of obtaining high precision weighing result. The load direction, support structure, or installation tool may have an impact.


For the load point of the sensor,including between the measured objects and between the device and its supporting surface, special attention should be paid to not being used for measuring the direction of the load splitter and its supporting surface, not used in the measurement direction of the load component will cause measurement error, may also shorten the life of the sensor.


The sensor is only used for the specified load direction,(for example,QH-21B,QH-22 and QH-23), with arrows indicating load direction.

QH-21B .jpg  QH-22 .jpg  QH-23_.jpgQH-23_.jpg



The bottom of the load cell must be placed on a flat, load-bearing base, which will not deform under load. In order for a uniform load to be reliably transferred from the bottom of the sensor to the base, the sensor must be fixed on a sturdy base, especially for a planar supported sensor.The sensor base must be capable of withstanding the supporting force corresponding to the load.


In spite of the overall stability, sometimes the base can deform strongly under load. Since this deformation can cause the settlement of the bearing surface at the same time,it is necessary to maintain the settlement size of all the bases in this case, so as to avoid the inclination and the resultant lateral force. In general, the rigid structure of the base is better than the flexible structure,soft structure is difficult to reach the uniform subsidence, and will cause the entire structure of additional stress.


When weighing the container or monitoring the fill state,the horizontal movement of the container and bracket resulting from the temperature change must be considered. Rigid mounting attachments prevent this movement, resulting in a horizontal lateral force resulting in measurement errors. This force sometimes causes the sensor to be damaged or even completely fractured.This may occur at load-loading points where eccentric or oblique loads may produce torsion and lateral forces, thus selecting a structure that avoids the horizontal forces caused by temperature distortions or other factors.


The use of mounting attachments to assemble sensors is a rule that eliminates many aspects of interference. Therefore, depending on the application, it is required to choose the specific installation attachment.In the final analysis, however, only design engineers with symmetrical weight technology can determine the interference in the measurement process. Therefore, for different sensor structures,there is not only a wide range of load-import methods, but also a variety of installation accessories selection.


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