The design of the elastic element, housing, diaphragm, upper pressure head, and lower pressure pad of the force sensor must ensure that there is no or minimal performance fluctuation in the structure after being loaded. Therefore, in the design of the force sensor, efforts should be made to achieve a single and uniform stress in the strain zone; The patch area is flat; Ensure a certain ability to resist eccentric and lateral loads structurally; The installation force should be kept away from the strain zone, and displacement of the load bearing point should be avoided during measurement. Although force sensors belong to assembly manufacturing products, in order to ensure technical performance and long-term stability, they are designed as a whole structure as much as possible.
The strain gauges used for high-precision sensors and cleanliness stress measurement are based on the material "epoxy formaldehyde". This strain gauge has the advantages of small hysteresis, good repeatability, high insulation strength, and stable performance. For general sensors and strain gauges used for stress analysis, please choose products produced by our factory. For stress testing of concrete and building components, please use BX series products: strain gauges with grid lengths of 20-100mm.

The selection skills for PH miniature pressure sensors are what we all need to possess:
1. For measuring electricity in high-purity water to meet the pH measurement application with a solution conductivity of ≤ 2 μ S/cm, it is necessary to emphasize the matching flow channel and needle valve to control the solution flow rate at 100-200ml/min to achieve stable measurement. This is because the thin conductive ions in pure water have become poor conductors and are prone to potential drift.
2. Pure water and general water are used for measuring electricity, meeting the requirements of pH measurement applications with conductivity ≥ 2 μ S/cm, such as tap water, cooling water, process water, circulating water, etc., which have high conductivity values and are less prone to complex chemical pollution.
3. Sewage measurement of electricity meets the measurement requirements for environmentally friendly polluted water and complex chemical polluted water. Due to the easy contamination of electricity, it is emphasized to regularly maintain it. Refer to the fifth energy-saving cleaning.
4. High temperature electricity for fermentation is applied in biotechnology to meet the requirements of enclosed, anti pollution, and frequent high-temperature disinfection environments. A special set of equipment is required, and the service life of the electricity determines the frequency of high-temperature disinfection.

Is the length of the connecting rod after reinstalling the sensor consistent with the original length, and we also need to ensure that the transmission lever is horizontal and the connecting rod is perpendicular to the transmission lever at a 90 degree angle. If there is a deviation, it will affect the accuracy and sensitivity of the scale. If the length of the connecting rod is too long, there will be a phenomenon of "weighing up". Can it be too long or too short? There will be a phenomenon of 'weighing too small'. At the same time, it should be noted that the connecting rod must be in a free hanging state and cannot rub against other objects to avoid affecting the sensitivity of the scale. In the debugging of the electromechanical combination scale after replacing the sensor, it should be carried out according to the weighing display instrument manual based on the accurate debugging of the mechanical scale. Whether it is an electronic scale or an electromechanical combination scale, after replacing the sensor, it must be verified and qualified before use.

The prerequisite for replacing a force sensor is that the axis of the applied force coincides with the axis of the sensor. We should know that as the rated load increases, the microvolt/division signal output by the sensor decreases. This is often overlooked, thinking that there is a proportional relationship between the two, but in reality it is not. When replacing a sensor, the load should be as similar as possible to the original sensor. If you want to replace it with a sensor with a larger load, you need to see if the weighing instrument of the electronic scale can be adjusted. If it cannot be adjusted, then do not replace it and still use the original load, because the microvolt/division signal output of the sensor with a larger load becomes smaller, and it cannot achieve the purpose of full range output, display, and dial adjustment. Therefore, it cannot be used. If it can be adjusted, then the problem is not significant.
In order to overcome the initial instability period of the force sensor during the production process, the process of simulating the usage conditions and conducting experiments to stabilize it as soon as possible is called stability treatment, also known as artificial aging test. There are two main methods for stabilizing residual stress release in force sensors, in addition to temperature aging and electrical aging commonly used in manufacturing processes, namely heat treatment and mechanical treatment.