Parallel Beam Load Cell Widely Used

- Oct 24, 2017 -

Parallel beam load cell is one of the most commonly used sensors in the load cell, widely used in electronic scales, kitchen scales, jewelry scales and other industries, industrial and agricultural automation system is an indispensable core components, shape, such as quadrilateral shape , The industry collectively referred to as parallel beam load cell.

The use of aluminum alloy material, colorless anodized, sealant. Mainly applicable to electronic price scale, weight scale and other small table electronic scales

principle

The parallel beam load cell is based on the principle that the elastomer (elastic element, sensitive beam) is elastically deformed under external forces so that the resistance strain gauge (switching element) pasted on its surface also deforms with the strain gauge , Its resistance will change (increase or decrease), and then the corresponding measurement circuit to convert this resistance into electrical signals (voltage or current), thus completing the external force into the process of electrical signals.

Considering the influence of the strategy acceleration and the air buoyancy on the conversion, the performance index of the parallel beam load cell mainly includes linearity error, hysteresis error, repeatability error, creep, zero temperature characteristic and sensitivity temperature characteristic.

Parallel beam load cell has the advantages of high precision, wide measurement range, long life, simple structure, good frequency response characteristics, can work in harsh conditions, easy to achieve miniaturization, integration and variety diversity. Its shortcomings are for large strain has a large non-linear, the output signal is weak, but can take some compensation measures. So it is widely used in automatic test and control technology.

installation method

First prepare two plates, the material and size to be set as needed. Hold the eye in accordance with the sensor's retaining hole; prepare the four screws, the screw cap, and the lower pad. The sensor as for between the two plates, with the hexagon socket screws and the parallel beam load cell fixed firmly. The upper plate fixes one end of the sensor, and the lower plate fixes the other end of the sensor. Fixed when the upper and lower plate and the sensor should be added between the pre-prepared gasket, so as to be able to make the sensor hanging force. Finally, the pad and other components are fixed to complete the sensor installation.


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