चर्चा पर कैसे टू निर्धारित करें सत्यापन दूरी इन्फ्रारेड थर्मामीटर
1 इन्फ्रारेड थर्मामीटर सत्यापन दूरी
In the वास्तविक सत्यापन प्रक्रिया, even भीतर द रेंज of the verification दूरी अनुमत by the निर्माता, दूरी of the सत्यापन दूरी प्रभाव दह सत्यापन परिणाम, कारण the verification data to differ by a कुछ डिग्री. the basic error stouted in the current JJG (Railway) {{}}} वेरिफिकेशन for portable Infrared थर्मामीटर 3 के लिए 7b{}}}} वेरिफिकेशन for portable Infrared थर्मामीटर 3 के लिए। 1 is that the the range of {30-95 डिग्री , the BASIC error of ANY REIFICATION In WAS MIND TOt TOt TOn C2�2 डिग्री , and AT 95-150} डिग्री 2C the BASIC Error of Any Test Point is NOT more than ±3 डिग्री . The error of the verification डिस्टेंस चेंज an infrared थर्मामीटर from qualified to unqualified. यह s that how to निर्धारित करें सत्यापन दूरी इन्फ्रारेड थर्मामीटर विशेष रूप से महत्वपूर्ण है।
2 निर्धारित करें सत्यापन दूरी अवरक्त थर्मामीटर
How to solve this problem in the verification process, it is recommended that the target diameter be Greater than or equal to 1.5S. According to the above relationship, assuming that the diameter of the surface source blackbody radiation source used is 100 mm, then S should be 66.67 mm. Assuming that D:S=6:1 (according to the instruction manual of the infrared thermometer provided by the manufacturer), then D=400 mm. By discussing this issue with experts, manufacturers and verification personnel, coupled with years of practical experience, it is suggested that during the verification process, the verification distance of the infrared thermometer should be set at D Less than or equal to 300 mm. The products that are certified as qualified when D Less than or equal to 300 mm are taken to the site to detect the temperature of the axle are consistent with the temperature test results of the axle detected by other methods. At the same time, it is also recommended to mark the verification distance during the verification process on the back of the verification certificate when verifying the infrared thermometer for reference by users.
