热敏电阻叶温计。

A thermistor leaf thermometer.

机构信息

Commonwealth Scientific and Industrial Research Organization, Division of Irrigation Research, Griffith, N.S.W., 2680, Australia.

出版信息

Plant Physiol. 1970 Aug;46(2):190-3. doi: 10.1104/pp.46.2.190.

DOI:10.1104/pp.46.2.190

PMID:16657432

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC396560/

Abstract

An instrument is described which allows measurements of leaf temperature within about 0.3 C. It consists of a special thermistor probe, a small circuit box, and a standard ammeter. The circuit box can easily be fixed to the meter and contains a battery, which passes 0.3 milliampere through the thermistor, and also contains an integrated circuit amplifier, so that the meter reads 20 C full scale deflection, with ranges adjustable in 10 C steps. Calibration experiments show the superiority of the thermistor leaf thermometer to a thermocouple pressed onto a rubber surface with a resilience resembling that of a leaf.

摘要

描述了一种能在约 0.3°C 范围内测量叶片温度的仪器。它由一个特殊的热敏电阻探头、一个小电路盒和一个标准电流表组成。电路盒可以很容易地固定在仪表上，它包含一个电池，使 0.3 毫安电流通过热敏电阻，还包含一个集成电路放大器，这样仪表在满量程 20°C 时读数为 20°C，量程可调，每步 10°C。校准实验表明，热敏电阻叶片温度计比热电偶具有优势，热电偶压在类似于叶片弹性的橡胶表面上。