SIMPLE TEST FOR PHASE CHARACTERISTICS OF CHART RECORDERS

被引：5

作者：

WAGNER, JW

机构：

[1] Research and Testing Staff, Bureau of Medical Devices, Food and Drug Administration, HEW/FDA/BMD Laboratory, Silver Spring

来源：

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING | 1979年 / 26卷 / 09期

关键词：

D O I：

10.1109/TBME.1979.326431

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

A method for quantifying the relative phase shift characteristics of chart recorders is presented. A test signal of the form (cos ω0t + A cos 3w0t) is used, which when normalized for unequal responses at the two frequencies, provides an independent quantitative measure of relative phase shift which can be determined from examination of the output record. The ease of implementation and interpretation suggests the potential application of this test as both a compliance and quality assurance technique for evaluating the performance of medical chart recording systems. © 1979 SDAIEEE

引用

页码：505 / 508

页数：4