Application of Multimeters in the Field of Pressure Sensors
The sensor industry is recognized as a high-tech industry with promising development prospects both domestically and internationally. It has attracted worldwide attention due to its high technological content, good economic benefits, strong penetration ability, and broad market prospects. Many manufacturers are facing new opportunities and challenges, and Beijing Delphi Technology is willing to go through this process with all manufacturers, so that Fugui Instruments can play an important role in this field. Below is a brief introduction to the application of the Fugui desktop multimeter in the field of pressure sensors.
About Sensors
A device or device that can sense (or respond to) a specified measured signal and convert it into a usable signal output according to a certain pattern. Sensors are usually composed of sensitive components that directly respond to the measured signal, conversion components that generate usable signal outputs, and corresponding electronic circuits.
At present, the accuracy of domestic pressure sensors is mostly below 0.25%, and the output form is mainly 4-20mA current.
There are many types of pressure sensors, such as resistance strain gauge pressure sensors, semiconductor strain gauge pressure sensors, piezoresistive pressure sensors, capacitive pressure sensors, piezoelectric pressure sensors, resonant pressure sensors, and fiber optic pressure sensors.
Before leaving the factory, pressure sensors need to undergo strict quality verification to ensure that they meet the various requirements of users and are competent in various industrial environments. There are many methods of verification, and here I mainly introduce the application of ESCORT luxury desktop multimeter for quality testing.
Domestic mainstream pressure sensors require a resolution of 1 for the converted output voltage μ V. The calibration instrument required for this situation is at least a five digit instrument, and a 120000 counting high-precision five and a half digit instrument with a DC voltage range (120mV accuracy of 0.012%+5) is fully capable of calibrating the sensor in this link; Similarly, for the 4-20mA current signal output by the pressure sensor, the DC current range (with an accuracy of up to 0.05% at 12mA) and the Auto Range function can conveniently detect this part. The optimal resolution for resistance measurement is 1m Ω, which is more than enough to correct the resistance value of the resistance strain gauge. The unique dual display function and high low limit alarm function bring great convenience to the production process.
From this, it can be seen that the calibration of key links in pressure sensors fully meets production requirements, and its ultra-high cost-effectiveness can not only meet technical applications, but also save costs for manufacturers, making it the best choice for sensor production enterprises.
