本文關(guān)鍵詞： 微波輻射 測量儀器 實驗室間比對 質(zhì)量控制 z比分數(shù)　出處：《中國職業(yè)醫(yī)學》2017年04期 　論文類型：期刊論文

【摘要】：目的探討以手機信號屏蔽器為標準源進行微波輻射實驗室間比對的可行性,建立微波輻射實驗室間比對方法。方法采用典型抽樣方法,以廣東省21家職業(yè)衛(wèi)生技術(shù)服務(wù)機構(gòu)的21臺微波輻射測量儀器為研究對象。以某手機信號屏蔽器為標準源,對其進行穩(wěn)定性檢驗。在距離標準源1.0和1.5 m的測量點進行比對測量,采用基于四分位數(shù)穩(wěn)健統(tǒng)計技術(shù)的z比分數(shù)對測量結(jié)果進行評價。結(jié)果標準源穩(wěn)定性檢驗中,3個時間段測得的功率密度比較,差異無統(tǒng)計學意義[(26.10±0.94)vs(25.78±0.27)vs(25.83±0.47)μW/cm~2,P0.05],標準源可滿足實驗室間比對的穩(wěn)定性要求。21臺儀器中,1臺儀器未送檢,1臺儀器校準證書過期,1臺儀器校準結(jié)果不合格。21臺儀器實驗室間z比分數(shù)(z_B)為-1.27~4.85,實驗室內(nèi)z比分數(shù)(z_W)為-1.42~2.18,其中1臺儀器|z_B|3.00,為離群結(jié)果,|z_W|2.00,為有問題結(jié)果。綜合評定結(jié)果,僅有1臺參比儀器比對結(jié)果不合格。結(jié)論以手機信號屏蔽器為標準源的穩(wěn)定性較好,可用于微波輻射實驗室間比對;所建立的微波輻射實驗室間比對方法可較好地評價測量儀器的性能。
[Abstract]:Objective to explore the feasibility of microwave radiation laboratory comparison using mobile phone signal shield as standard source, and to establish a method of microwave radiation laboratory comparison. Taking 21 microwave radiation measuring instruments of 21 occupational health technical service organizations in Guangdong Province as the research object, taking a mobile phone signal shield as the standard source, The stability test was carried out. At the measuring points of 1.0 m and 1.5 m from the standard source, the relative measurements were carried out. The z ratio fraction based on the quadrant robust statistical technique was used to evaluate the measured results. The power density measured in three time periods was compared in the stability test of the standard source. The difference was not statistically significant [26.10 鹵0.94mv / v ~ (-1) 25.78 鹵0.27v / s ~ (25.83 鹵0.47) 渭 W / cm ~ (2) P _ (0.05)]. The standard source could satisfy the stability requirement of the laboratory comparison. Among 21 instruments, one instrument had not been submitted for inspection, one instrument calibration certificate had expired, and one instrument calibration result was not up to date. 21 instrument to laboratory calibration results were not up to standard. In the laboratory, the number of z / z / z / W is -1.42 / 2.18, and one instrument, ZB / 3.00, is the outlier result and the zW _ 2.00 / ZW _ 2.00, which is the result of the comprehensive evaluation. Only one reference instrument is not qualified. Conclusion the stability of mobile phone signal shield is good, and it can be used to compare microwave radiation between laboratories. The method of comparing microwave radiation between laboratories can evaluate the performance of measuring instruments.
【作者單位】： 廣東省職業(yè)病防治院廣東省職業(yè)病防治重點實驗室;陽江江華醫(yī)院;廣東藥科大學;
【基金】：基金項目:廣東省職業(yè)病防治重點實驗室(2012A061400007)
【分類號】：R134.4

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