中国医疗设备2017，Vol.32Issue(1)：34-37,45,5.DOI:10.3969/j.issn.1674-1633.2017.01.009
一种基于数字信号处理器和齿轮泵的尿流率计校准装置
Urolfowmeter Calibration Device Based on Digital Signal Processor and Gear Pump
摘要
Abstract
ObjectiveTo explore the system of uroflowmeter calibration devices based on Digital Signal Processor (DSP) and gear pump.Methods The proposed method used voltage control gear pump to output standard water flow. With DSP as the core,andunder the control of DSP, the digital/analog converter outputted a high precision control voltage to the motor, and motor drived pump operation. First, fixed voltage was given to check if the device could output a stable water flow; second, fitted out a standard urinary flow rate curve and observe if the device could output variable flow rate of water according to the rate curve. Results By using the designed device to calibrate uroflowmeter of the Netherlands Medical Measurement Systems, results of the urine flow rate curve output by Medical Measurement Systems uroflowmeter was consistent with that of calibration device fitting curve, and the maximum flow rate as well as the flow error were all less than 5%, which showed that our device could achieve calibration of urinary flow rate meter. ConclusionThe research scheme of uroflowmeter calibration device based on DSP and gear pump is feasible and can meet the requirement of measurement range and resolution of uroflowmeter calibration devices.关键词
尿流率计/数字信号处理器/齿轮泵/排尿量测量/最大尿流率测量Key words
uroflowmeter/digital signal processor/gear pump/urine output measurement/maximum flow rate measurement分类
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姬军,尹琳琳,王莉新,高佳硕,肖宏,袁青..一种基于数字信号处理器和齿轮泵的尿流率计校准装置[J].中国医疗设备,2017,32(1):34-37,45,5.基金项目
军事医学计量科研专项课题（2012-JL1-016）。 （）
