Department of Botany, Duke University, Durham, North Carolina 27706.
Plant Physiol. 1974 Jan;53(1):47-51. doi: 10.1104/pp.53.1.47.
An automatic digital diffusion porometer circuit is described. The circuit is highly stable with respect to temperature and supply voltage. The device is capable of high timing accuracy over very short measurement intervals, so that measurements may be made rapidly without the danger of stomatal changes occurring during the measurement period.
描述了一种自动数字扩散孔隙计电路。该电路在温度和电源电压方面具有高度稳定性。该设备能够在非常短的测量间隔内实现高精度的定时，从而可以快速进行测量，而不会在测量期间发生气孔变化的危险。
