Approaching type broadband optical pyrometer

Abstract

The invention discloses an approaching type broadband optical pyrometer. The approaching type broadband optical pyrometer comprises a protecting pipe, a plano-convex lens, a lens base, a connecting part, an optical detector, a photoelectric processor and a temperature displaying unit, the plano-convex lens and the outside lens base are sealed and embedded together into the rear end of the protecting pipe, the convex end of the plano-convex lens faces the front end of the protecting pipe, the end face of the planar end of the plano-convex lens and the end face of the tail end of the protectingpipe are located at the same plane, the optical detector and a connecting clamping part outside the protecting pipe are fixedly connected and are arranged at the focus of the plano-convex lens, and the optical detector is electrically with the photoelectric processor and the temperature display unit and is grounded. The approaching type broadband optical pyrometer is low in cost, high in cost performance, convenient to operate and high in practicability and can accurately measure the temperature on the surface of liquid in a high temperature molten state.

Description

technical field [0001] The invention relates to a high temperature measurement technology with a temperature range of 1000°C to 3000°C, in particular to non-contact temperature measurement and surface temperature measurement technology of high-temperature molten liquid matter, in particular to a proximity-type wide-band optical pyrometer. Background technique [0002] The measurement of the surface temperature of the high-temperature molten liquid mainly relies on a non-contact CCD infrared thermometer or a contact-type disposable thermocouple. The glass industry, metal smelting industry, casting industry, etc. all need to measure the surface temperature of high-temperature molten liquid, and the CCD infrared thermometer cannot get close to the temperature measurement target point, resulting in a large measurement error, and the harsh environment of the temperature measurement site makes it The CCD lens is easily polluted, which makes the temperature measurement results inac...

AI Technical Summary

Problems solved by technology

The glass industry, metal smelting industry, casting industry, etc. all need to measure the surface temperature of high-temperature molten liquid, and the CCD infrared thermometer cannot get close to the temperature measurement target point, resulting in a large measurement error, and the harsh environment of the temperature measurement site makes it The CCD lens is easily polluted, which makes the temperature measurement results inaccurate and unstable; and disposable thermocouples are consumables, which cannot be widely used due to factors such as large consumption, inability to measure in real time, and uncontrollable costs. In addition, disposable thermocouples The occasional high temperature measurement is mainly a disposable platinum-rhodium thermocouple, and these two materials are precious and rare metals, which are expensive to manufacture and cause damage to the environment during production and recycling

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