infrared temperature sensor how it works

industrial infrared temperature sensor RS-WD-HW-*

The industrial infrared temperature sensor can calculate the surface temperature of the object by measuring the intensity of the infrared radiation emitted by the target without contacting the target. infrared temperature sensor non contact is the biggest advantage of infrared thermometers, allowing users to easily measure targets that are difficult to access or move.

The temperature sensor is an integrated infrared temperature sensor. The sensor, optical system and electronic circuit are integrated into a stainless steel housing. Easy to install, the standard thread on the metal housing can be quickly connected to the mounting part. There are also options (installation) Brackets) to meet the requirements of various working conditions.


infrared temperature sensor working principle

1.Infrared temperature measurement principle

Any object radiates infrared energy outward, and the intensity of the radiation changes with temperature. Infrared thermometers typically use infrared radiation energy having a wavelength in the range of 0.8 μm to 18 μm. An infrared temperature sensor is an optoelectronic sensor that receives infrared radiation and converts it into an electrical signal that is displayed or output temperature via an electronic line amplifier, linearization, signal processing.

2.Maximum distance and size of the point being measured

The size of the target to be measured and the optical characteristics of the infrared thermometer determine the maximum distance between the target and the measuring head. To avoid measurement errors, the target to be measured should be as full as possible to fill the field of view of the probe. Therefore, the measured point should always be smaller than the measured object or at least the same size as the measured target.

3.Lens cleaning

The lens of the instrument must be kept clean to avoid measurement errors or even damage the lens due to dust, smoke, and other contaminants. If the lens is dusty, wipe it with a mirror paper and alcohol.

4.Electromagnetic interference

To prevent electromagnetic interference, please keep the infrared temperature sensor away from the electromagnetic field source (such as motor, motor, high-power cable, etc.) during installation, and add metal bushing if necessary.

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infrared temperature sensor datasheet

Supply voltage10-24V DC
Power consumption1.2W
Accuracy±1% or ±1.5℃
Circuit working temperature

Temp.: 0 ~60°C

Humidity:  10 – 95% (No condensation)

Test temperature range0-1000°C (0-600°default)
Spectral range8 ~ 14 µm
Optical resolution20:1
Respond time150 ms (95%)
Size113mm×Φ18mm(L*D)
Emissivity0.95(fixed)
Output4~20mA
Load capacity≤600Ω

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infrared temperature sensor applications

1. Electrical equipment, medical field

2.Food Construction Industry, Chemicals, and Chemical Industry

3. temperature monitoring in process and production field

4. Metallurgy, petrochemicals, electric power, light industry, textile industry, food industry, National defense, and scientific research

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