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 Wysłany: Pon 15:11, 13 Gru 2010 Temat postu: ugg prezzo Handheld infrared thermometer body temp |
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Handheld infrared thermometer temperature measurement of the test reports of human
The number of members of the distribution shown in Table 7. Table 7 Number of share of the temperature range △ T ≤ l ℃ O. 8% l'U <ATe2 ℃ 14.4% 2'E </ \O% 3 ℃ <△ T ≤ 4 ℃ 40.8% 4'U <ATe5 ℃ 10.4% 5'E <ATe <6 ℃ 1.6% 6 ℃ <△ T ≤ 8 ℃ 4.0% Thus, in this experiment, the temperature in the range 2 ℃ ~ 4 ℃ within the district with the largest number of people, and its distribution was no significant correlation with age. From the above charts and test data can be seen: a handheld infrared thermometer measured forehead temperature than the thermometer measured axillary temperature is low, but because of individual differences, and its poor temperature uniformity (temperature range of 0. 6 ~ C ~ 8.O ℃). Temperature distribution and the age, gender, no significant correlation between the temperature difference is 2 ℃ ~ 4 ℃ when the number of shares are 65%. 4 Discussion (1) the emergence of the sARs (the onset of symptoms - fever), infrared thermometers for body temperature measurement and the initial screening large groups of people, has drawn increasing public attention. Rather than exposure to infrared thermometer measures the surface temperature - rather than body temperature. For the human body surface temperature and the traditional thermometer measured the correlation between axillary temperature is also being studied, and the few articles published. So far, there is no conclusive evidence that one of the temperature can be reliably and consistently expressed to another temperature. (2) Based on the temperature of more than 300 test subjects who show: hand-held infrared thermometer measured the body surface temperature and body temperature (axillary temperature) compared to its body temperature due to poor consistency of individual differences . Thus, the human body for industrial infrared thermometer tests the temperature must be cautious! Results from this point of view, if the temperature criteria defined as 2 ~ C ~ 4 ℃, it will still have missed 35% of the staff investigation and unnecessary further unknown origin. Now some of the relevant units in accordance with the infrared temperature measurement values being proposed amendment I ~ C ~ 3'E, you may leak investigation officers more! (3) Based on Planck's radiation theory of infrared non-contact temperature measurement, as was test objects are non-physical sense of the black body (emissivity ? = 1), but the gray body (emissivity ? (, R ... ..) <1), and the measured object's emissivity ? (, R .... .) and the wavelength of radiation, radiation, surface roughness R, and other relevant materials, the measured object, and thus the accuracy of its temperature being from Figure 4, Figure 5, Figure 6 shows the 62-year-old age limit of 20 to 34 . Relative to the infrared temperature measurement in terms of industrial use, human subjects staff in the surface temperature is 2 ℃ ~ 4 ℃, the number of shares for the infrared temperature measurement for large individual differences in each person (such as the body's own on the 69.4 %, l31 were aged 35 to 44-year-old subjects who ambient temperature in the temperature adaptation for the regulation, skin conditions, make-up, sweating, 2 ~ C ~ 4 ℃ when the number of share of 63.4%, l25 a 45 to 65 years of age color, etc.), making it difficult to accurately (the accuracy of the standard thermometer is 4 - temperature difference between the tested officer was 2 ℃ ~ 4 ℃ when the number of share of 68.8%, 0.15oc ) to give the body temperature. (Continued from page 5 assessment, transport and storage, data control, sample disposal, evaluation of measurement uncertainty and other requirements and the latter is basically the same, but the existence of essential differences between the two institutions, organizations and therefore management, personnel, experimental basis and method of 0 certificates and reporting requirements are different. Organization and management of the main differences between \and methods based on certificates and reports related to the different test and calibration at the front of the differences already described, will not repeat. In short, the statutory body engaged in laboratory accreditation is a general trend, not to mention a large number of non-statutory laboratory metrology institutes have been gradually recognized by the CNACL and among the areas of value transfer, fierce competition has been inevitable. For the statutory bodies of the laboratory personnel, since the long-term work in traceability, and its obvious advantages, as long as we seriously study \essential difference between the two bodies, the essence of the quality system into the legal metrology institutes of operation, will enable us to navigate in the work, in an invincible position in the competition. * 9
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