Koltun V M, Trusov Iu S
Med Tekh. 1985 May-Jun(3):32-9.
Many up-to-date cardiologic units show poor information reliability when the subject moves. The noise immunity of the units can be considerably improved by means of the R-wave selector that discriminates signals by rate and duration of the pulse decay (RS-slope). Two versions of the circuitry for such units are possible, parallel and series. The noise immunity of both versions is similar, but the series one may be easier realized. The optimum threshold values for this selector are as follows: 12 ms in the rate and 14 ms in the duration.
许多最新的心脏科设备在患者移动时信息可靠性较差。通过R波选择器可以显著提高设备的抗干扰能力，该选择器根据心率和脉搏衰减持续时间（RS斜率）来区分信号。这种设备的电路有两种版本，并联和串联。两种版本的抗干扰能力相似，但串联版本可能更容易实现。该选择器的最佳阈值如下：心率方面为12毫秒，持续时间方面为14毫秒。
