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为了提高和改进建筑热工测试技术,我们建筑物理实验室试制了一种适合于常温测量的光控自动记录仪。基本原理是:由热—电(包括光—电,机—电等)感应元件所感换的电讯号,输入光点反射检流计,检流计的光点产生相应的偏转,借助一个由可逆电机带动的描记系统上的光导管和描笔,在连续前进的记录纸上描出光点的偏转度,这样就得到了与讯号相应的记录曲线,如图(1)所示。
In order to improve and improve the building thermal testing technology, our building physics laboratory trial-produced a light-controlled automatic recorder suitable for room temperature measurement. The basic principle is: by the heat - electricity (including light - electricity, electricity - machine, etc.) sensing element of the sensor signal, the input reflection spot galvanometer, galvanometer spot corresponding deflection, with a reversible The phototool and stylus on the electromechanical tracing system depict the degree of deflection of the spot on the continuously advancing recording paper, resulting in a recording curve corresponding to the signal, as shown in Fig. (1).