Infrared thermal image-based thermos cup tester and testing method thereof

Abstract

The invention discloses an infrared thermal image-based thermos cup tester and a testing method thereof, relating to the technical field of infrared temperature test. The tester comprises a box body rack, a sample rotating disk, a sample rotating disk drive rotating shaft, an infrared detector, a high-temperature gas injecting device, an ARM kernel main control processing board and a liquid crystal display screen, wherein the sample rotating disk is used for placing a thermos cup; the infrared detector detects the heat preservation effect; the ARM kernel main control processing board is used for image acquisition and processing and command control; and the liquid crystal display screen is provided with a touch screen. The infrared thermal image-based thermos cup tester judges the heat preservation effect of the thermos cup according to the brightness of an infrared image expressed by the heat transfer performance by carrying out infrared imaging on the thermos cup sample filled with high-temperature gas. The detecting result of the nonintrusive type detecting method is less influenced by other cups and external environment; the whole cup is in a sealed state; the detecting result can more really reflect the heat preservation performance of the thermos cup; the leakage point distributing position of an unqualified sample can be really reflected; in addition, ARM is used as the main control processing board so that the instrument has stronger interface expansion capability.

Description

technical field [0001] The invention relates to the technical field of infrared temperature measurement, in particular to a thermos cup testing machine based on infrared thermal images and a detection method thereof. Background technique [0002] The thermos cup is usually composed of two layers of stainless steel plates welded, and the middle is vacuumed to reduce the heat transfer in the cup, thereby improving its thermal insulation performance. Publication number is that the Chinese patent of CN2653503 discloses a kind of thermos cup testing machine, and it is to judge the performance of thermos cup by using temperature-sensing probe to detect after thermos cup is heated, mainly has two shortcomings: one is that thermos cup is tested At the same time, its mouth is in an open state, which makes part of the heat dissipate, which affects the accuracy of the test; the second is that the same temperature sensor continuously tests a series of thermos cups, and the residual temp...

AI Technical Summary

Problems solved by technology

The Chinese patent with the publication number CN2653503 discloses a thermos cup tester, which judges the performance of the thermos cup by using a temperature sensor to detect the thermos cup after it is heated. There are two main disadvantages: one is that the thermos cup is tested At the same time, its mouth is in an open state, which makes part of the heat dissipate, which affects the accuracy of the test; the second is that the same temperature sensor continuously tests a series of thermos cups, and the residual temperature in the previous thermos cup will affect the temperature of the next thermos cup. The accuracy of the measurement affects the

This temperature measurement structure also has its own limitations: first, the structure is complex, requiring the conversion mechanism of the probe, the condensation device of the probe and the exhaust device, thereby reducing the reliability of the instrument; secondly, the probe is often in contact with cold and hot Liquid contact is easy to oxidize, which affects the measurement accuracy; thirdly, intrusive measurement destroys the airtightness of the device and cannot truly reflect the thermal insulation performance of the thermos cup

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