A handheld temperature measurement infrared thermal imager is a portable detection device that uses infrared thermal imaging technology to detect the distribution of infrared radiation energy on the surface of an object, convert it into a visible image, and display temperature values. Here is a detailed introduction:
Working Principle
- Infrared Radiation Reception: The infrared detector in the handheld temperature measurement infrared thermal imager receives the infrared radiation emitted by the object. This radiation carries the temperature information of the object.
- Photoelectric Conversion: The detector converts the received infrared radiation into an electrical signal. This process is usually completed by a photodiode or other photoelectric conversion devices.
- Signal Amplification and Processing: The amplifier and signal processor amplify and filter the electrical signal to improve the signal-to-noise ratio and stability.
- Temperature Calculation and Image Generation: The image processing unit calculates the temperature value of each pixel according to the infrared radiation intensity and the object's emissivity using a temperature calculation formula, and generates a temperature distribution image.
- Display and Storage: The temperature distribution image is displayed in real-time through a display and can be stored in internal memory or an external storage device for subsequent analysis and processing.
Advantages
- Non-contact Measurement: It can measure the temperature of an object without direct contact, avoiding damage to the object and ensuring the safety of the measurer, especially suitable for measuring high-temperature, dangerous, or difficult-to-reach objects.
- Intuitive Visualization: Presents the temperature distribution of the object in the form of a thermal image. Different colors represent different temperatures, allowing users to quickly and intuitively understand the temperature distribution of the object's surface and easily identify abnormal temperature areas.
- Fast and Efficient: It can quickly scan and obtain the temperature information of the entire object, and some high-frame-rate thermal imagers can even capture the temperature changes of moving objects in real-time, improving the efficiency of temperature measurement and detection.
- Wide Temperature Range: It can measure objects within a wide temperature range, from low-temperature objects to high-temperature molten metals, etc. Different models of handheld thermal imagers can meet different temperature measurement requirements.
