Detection identification method of standard constant temperature bath glass thermometer

Abstract

The invention brings forward a detection identification method of a standard constant temperature bath glass thermometer. The method comprises the following steps: step 1, obtaining a fuzzy image of a character to be identified in the glass thermometer; step 2, performing contour fuzzy feature extraction on the character to be identified; and step 3, performing fuzzy closeness identification processing on the fuzzy image of the character to be identified so as to identity the character. According to the technical scheme provided by the invention, incomplete characters on the glass thermometer are identified by use of a fuzzy closeness algorithm which is brought forward lately, the identification correct rate is about 96%, and the thermometer reading accuracy can reach 95%.

Description

technical field [0001] The invention relates to a verification and identification method for a glass thermometer used in a standard constant temperature tank. Background technique [0002] At present, the technical level and existing problems of the standard constant temperature bath verification glass thermometer at home and abroad: [0003] 1 Domestic technical level of standard constant temperature bath [0004] At present, the standard constant temperature baths used by domestic production enterprises and measurement and testing institutions all use traditional temperature instrument control methods. From the perspective of scientific and technological novelty search and information retrieval, domestic scientific research institutions and colleges and universities have researched and published some papers and books on touch screens, precision temperature control systems, automatic detection technologies and standard constant temperature baths. For example: (1) In the N...

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Problems solved by technology

[0010] Due to the uncertainty of the research and measurement results of the verification method of the medium temperature=degree meter (including glass thermometer, thermocouple, thermal resistance thermometer), it is necessary for the inspector to perform every step of the operation in the whole verification process, from the insertion and fixation of the thermometer, to the thermocouple The binding of the thermal resistance, the setting of the temperature point, the judgment of the constant temperature, the collection of data, the data processing and the judgment of the results all need to be operated manually. There will inevitably be different errors in the measurement results

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