心電圖機幅頻特性檢定結(jié)果的分析

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【摘要】本文以心電圖機為檢定對象，以檢定項目幅頻特性為例，分析了測量數(shù)據(jù)是否存在異常值，并對測量不確定度進行評定，以期為各位同仁的檢定工作提供指導和借鑒。

【關鍵詞】心電圖機；幅頻特性；異常值；測量不確定度評定

【DOI編碼】10.3969/j.issn.1674-4977.2023.06.010

Analysis of the Verification Results of Amplitude Frequency Characteristics of Electrocardiograph

LIU Yaxuan

（Gansu Provincial Metrological Testing and Verification Center， Pingliang 744000， China）

Abstract： In this paper， the ECG machine is taken as the verification object， and the amplitude-frequency characteristics of the verification items are taken as an example. It mainly analyzes whether there are abnormal values in the measurement data， and evaluates the measurement uncertainty， so as to provide guidance and reference for the verification work of colleagues.

Key words： electrocardiograph； amplitude-frequency characteristics； abnormal value； evaluation of measurement uncertainty

1幅頻特性的檢定意義

心電圖機接收到的信號頻率和輸出的信號幅度是一一對應的，其輸出波形的振幅隨著輸入頻率的改變而改變。（剩余2499字）