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心率变异性检测系统是一个无创、定量评估迷走神经和交感神经活性的检测系统。系统由心电放大器、A／D、单片机和PP40绘图仪等组成。系统软件由PL／M高级语言和ASM96汇编语言混合编写。系统提供了时域、频域分析的多项指标，绘出HRV功率谱图，并初步用于临床。
The heart rate variability detection system is a non-invasive, quantitative assessment system for vagal and sympathetic activity. The system consists of ECG amplifier, A/D, MCU and PP40 plotter. The system software is composed of a mixture of PL/M high-level language and ASM96 assembly language. The system provides a number of indicators for analysis in the time domain and frequency domain, plots HRV power spectra, and is initially used in the clinic.