Pt100 temperature measurement circuit (classic temperature range): The temperature sensor PT100 can work in the range of -200 degrees to 650 degrees. The whole circuit is divided into two parts, one is the sensor preamplifier circuit, the ot....
The WZP type platinum resistance temperature sensor product Pt1000 is a device that detects temperature and temperature related parameters by utilizing the characteristics of the electromagnetic parameters of the components as a function of....
Thermocouple is a kind of commonly used temperature sensor . It uses thermoelectric effect to measure temperature according to thermoelectric electromotive force produced by temperature difference between hot and cold ends. It has the advan....
The self-recovery fuse is a new type of fuse with overcurrent and overheat protection that can be reused multiple times. 1. The structural principle of self-recovery fuse: Self-recovery fuses are PTC thermal elements with positive temperatur....
Abstract: This paper presents the hardware and software design of multi-channel PT100-III signal conversion module. Key words: three-wire system; PT100; MODBUS introduction PT100 is a widely used temperature measuring element. It has unparal....
This paper analyzes the working principle and design basis of the functional circuit such as constant current source signal conditioning analog-to-digital conversion in the temperature measurement system, and gives the circuit parameters. Te....
Summary: This paper introduces a method for accurately measuring the resistance of three-wire thermal resistance by constant voltage partial pressure method. For Pt100 thermal resistance, the detection resolution can reach 0.005W. At the sam....
Basic method for selecting and setting Pt100 temperature verification point 1. For each verification point of Pt100, select 0C and 100C, and check the compliance of the actual resistance temperature coefficient a; 2. When △a does not meet....
In Figure 2, R11 is a sampling resistor with a resistance of 10 k and an accuracy of 1 ; The sensor product output current is 273.15A at 0 C, and the voltage across the resistor is 2.731 5 V; The sensor product output current is 373.15 A at....
Temperature measurement applications are very extensive, not only do production processes require temperature control, but some electronic products also need to measure their own temperature. For example, if the computer wants to monitor th....