Types of Thermocouples with Temperature Ranges & Color Codes

Types of Thermocouples with Temperature Ranges & Color Codes Thermocouple can be defined as a sensor or device which is used for sensing or measuring temperature. The thermocouples are consisting of two metals or wires and the metals are known as legs. Both legs are welded together so as to create two junctions. Temperature is measured in these junctions…

How to Calibrate a Thermocouple

A thermocouple can be any junction between two different metals and may be used to measure temperature. Each metal produces a different electrical potential that varies according to changes in temperature. This rate of change is different for each of the metals in the thermocouple, so a thermocouple produces a voltage that increases with temperature.…

How Do I Check Millivolts on a Thermocouple?

A thermocouples uses a sensor to measure the temperature of current passing through an object. Because a thermocouple can measure large temperature ranges, you’ll find them being used in many different settings, such as in the steel industry and manufacturing plants. While thermocouples use millivolts to determine the temperature, the millivolt reading will not be…

Resistance Temperature Detectors Working Principle

Resistance Temperature Detectors (RTD) Working Principle Thermo-resistive Temperature Measuring Devices A change in temperature causes the electrical resistance of a material to change. The resistance change is measured to infer the temperature change. There are two types of thermo-resistive measuring devices: Resistance temperature detectors (RTD) and Thermistors Resistance Temperature Detectors A resistance temperature detector (abbreviated…

Basics of Thermistor – Advantages and Disadvantages

Principle: The principle of temperature measurement with a thermistor is that its resistance changes with temperature. Most thermistors differ from normal resistors in that they have a negative coefficient of resistance, this means that the resistance decreases with an increase in temperature. Negative (NTC) thermistors are the more common although positive (PTC) are also available.…

Two Ways to Measure Temperature Easily Using Thermocouples

Introduction The thermocouple is a simple, widely used component for measuring temperature. This article provides a basic overview of thermocouples, describes common challenges encountered when designing with them, and suggests two signal conditioning solutions. The first solution combines both reference-junction compensation and signal conditioning in a single analog IC for convenience and ease of use;…