紅外線額溫計之性能改善研究

Study of the Improvement for the Performance of the Forehead Infrared Thermometer

吳宗儒(Zong-Ru Wu) ； 陳宏源(Hong-yuan Chen) ； 陳濤(Tau Chen) ； 陳加忠(Chiachung Chen)

《農林學報》 67卷3期 (2020/09) Pp. 165-179

https://doi.org/10.30089/JAF.202009_67(3).0002

摘要

為了執行武漢肺炎防疫需求，體溫量測成為各種公共場所與公共運輸工具用以篩檢可能病患的主要工具，額頭溫度測量被廣泛用於篩查疾病。然而紅外線額溫計的設備性能和篩選溫度標準缺乏相關研究。在此研究中，以標準溫度產生器產生之標準溫度為比較基準，兩型工業型紅外線溫度計與五型額溫計進行量測性能檢定，分別進行校正公式以進行性能改善，並且以獨立量測數據比較評估以校正公式進行性能改善之可行性研究。結果所得顯示中國生產的一型額溫計，在4個標準溫度環境下，該此額溫計讀出值仍然維持36.4℃～36.7℃，此結果顯示此型體溫計並無量測性能。兩型工業用紅外線溫度計之量測性能均為低估，無法以讀出值直接代表體溫值。四型額溫計量測性能在正常人體額溫為36℃時量測誤差均為高估，而且為0.5℃以上。以校正公式改善量測性能，在34℃～38℃之量測範圍，其準確性在0.21℃～0.35℃之範圍，其精密性為0.3℃～0.5℃範圍，顯示紅外線溫度計藉由適當校正公式，可改善性能並適用體溫量測。有關紅外線溫度計之性能改善方式建議，包括調整固定誤差值，使用校正公式計算量測值，依對照表對於額溫計讀出值加以對照，與溫度計製作公司之硬體改善。由於國內目前額溫計缺乏法令可以界定與約束，建議主管單位將其列管為應施檢定之方法定度量衡器，才能保障使用者權益以及有效協助疫情。

關鍵字

新型冠狀病毒 ； 額溫計 ； 校正公式

並列摘要

In order to prevent the spread of the Wuhan pneumonia epidemic (Coronavirus disease COVID- 19), body temperature measurement has become the main tool to screen for possible patients in various public places and public transportation. Forehead temperature measurement is widely used for screening diseases. However, the equipment performance and screening temperature standards of the infrared forehead thermometer need to be studied. In this study, the standard temperature is generated by the standard temperature generator and used as the reference temperature. Two types of industrial infrared thermometers and five types of infrared forehead thermometers are used to perform performance test. The calibrations were established to improve measurement performance. The independent measurement data was used to verify the predictive performance. The result in this study indicated that a type of forehead thermometer produced in China, under the four standard temperature environments, the reading value of this forehead thermometer still maintains 36.4℃~36.7℃. This result shows that this thermometer has no measurement performance. The measurement performance of the two types of industrial infrared thermometers is underestimated. The temperature value cannot be directly represented by their readout values. The measurement performance of four types of forehead temperatures is overestimated at the 36°C and it is above 0.5°C. The calibration equations could be used to improve the measurement performance. In the measurement range of 34℃~38℃, its accuracy is in the range of 0.21℃~0.35℃, and its precision is in the range of 0.3℃~0.5℃. Suggestions for improving the performance of infrared thermometers include adjusting the fixed error value, using the adequate calibration equation to calculate the measured value, and comparing the reading values of the forehead thermometer with its special comparison table, and improving the hardware of the thermometer by manufacturing company. Due to the lack of related laws and regulations in Taiwan, ear thermometers can be checked officially. It is recommended that the infrared forehead thermometer must be defined and tested as an official instrument. Then the rights of users and the prevention of epidemic could be assisted effectively.

並列關鍵字

COVID-19 ； forehead infrared thermometer ； calibration equation