什么是熱電偶？

熱電偶是溫度測量儀表中常用的測溫元件，它直接測量溫度，并把溫度信號轉換成熱電動勢信號，通過電氣儀表（二次儀表）轉換成被測介質的溫度。各種熱電偶的外形常因需要而極不相同，但是它們的基本結構卻大致相同，通常由熱電極、絕緣套保護管和接線盒等主要部分組成，通常和顯示儀表、記錄儀表及電子調節器配套使用。

Thermocouple is a commonly used temperature measuring element in temperature measuring instruments. It directly measures the temperature and converts the temperature signal into a thermoelectromotive force signal, which is converted into the temperature of the measured medium through an electrical instrument (secondary instrument). The appearance of various thermocouples is often very different due to needs, but their basic structure is roughly the same. They are usually composed of main parts such as thermoelectrodes, insulating sleeve protection tubes and junction boxes, usually with display instruments, recording instruments and electronic adjustments. Used in conjunction with the device.