How to choose a suitable and good load cell
The weighing load cell is called the core of the electronic weighing instrument, and its characteristics determine the accuracy and reliability of the electronic weighing instrument in a large degree. When designing an electronic weighing instrument, it is often difficult to encounter the problem of using a sensor. How to use the best-in-weight weighing load cell The load cell is actually a device that converts the quality signal into a measurable electrical signal output.
The sensor should first consider the actual working site where the sensor is located. In fact, it is especially important for the proper use of the sensor. It is related to whether the sensor can work normally and other safety factors and usage periods, and even the reliability and reliability of the entire scale. So how do you choose a stronger load cell? The following is a small series for everyone to introduce in detail.
Weighing force sensors widely use a variety of metal foil strain gauges with a resistance of 350 Ω, so that various electronic scales have high comprehensive precision, good reliability and convenient display information in practical applications.
The application of the load cell in the natural environment:
A load cell is actually a device that converts a quality signal into a measurable electrical signal. The sensor must first consider the actual working site where the sensor is located. In fact, it is especially important for the proper use of the sensor. It is related to whether the sensor can work normally and other safety and use period, and even the reliability and safety of the entire scale.
Under normal conditions, the high temperature and natural environment causes problems such as melting of coated raw materials, opening of solder joints, structural changes in elastic body stress, dust and moisture on the short circuit of the sensor, and causing the sensor in a corrosive natural environment. The elastomer is damaged or short-circuited; the electromagnetic field can interfere with the sensor output. Under the corresponding environmental factors, we must select the corresponding load cell to meet the necessary weighing requirements.
Comparison of two kinds of resistance weighing sensors:
Resistance strain gauge load cells are often referred to as load cells for use with a wide variety of electronic scales, while force sensors for measuring experimental loads or forces are referred to as force sensors, despite the formal structure of the two. The production process is the same, but there are still many practical differences in the application site, accuracy calibration and requirements.
The zero drift of the sensor for the scale is usually not expressed in the characteristics of the long-term reliability. However, the characteristics of the long-term reliability of the load cell and the load cell in the material testing machine must be paid attention to. When a resistance strain sensor is used as the reference load of the material testing machine, 1/100 of the rated load of the load sensor is usually taken as the applicable range of the material testing machine. At this time, the marking accuracy of the testing machine can be guaranteed to be 1%.
The above content is a detailed introduction to how to select the weighing force sensor. With the development trend of the load cell in the society, the technology of the force sensor is also constantly improving. The load cell is in the load cell. The applications in our lives are becoming more and more extensive, and many companies are beginning to understand the application of force sensors.