一种NTC热敏电阻特性与应用实验仪的改进  

Improvement of NTC Thermistor Characteristic and Application Experiment Instrument

作　　者：唐艳妮 李雪琴 刘芯 何楚洹 闫四海 TANG Yanni;LI Xueqin;LIU Xin;HE Chuhuan;YAN Sihai(Department of Basic Courses,Rocket Force University of Engineering,Xi’an 710025,China)

机构地区：[1]火箭军工程大学基础部,陕西西安710025

出　　处：《大学物理实验》2020年第4期60-64,共5页Physical Experiment of College

摘　　要：“热敏电阻特性与应用”实验是“大学物理实验”课程的一个设计性实验,通过本实验学生在了解热敏电阻温度特性的基础上,自主设计实验方案利用热敏电阻将微安表改装成指针式温度计。但是实验中所用的实验仪器由于测量精度低、测量项目少、安全性不高等问题,在具体教学过程中不能充分发挥其设计性实验的作用,因此在体现实验原理和实验思想的目标下,重新设计制作了实验仪器。Thecharacteristic and application experiment of thermistor is a design experiment of College Physics Experiment Course.Through this experiment,student on the basis of understanding the temperature characteristic of thermistor,independently designed experimental program,using thermistor to modify the micro-amperemeter into pointer thermometer.However,the experimental instruments used in the experiment are not able to give full play to the role of the design experiment in the specific teaching process due to the low measurement accuracy,less measurement items and low safety.Therefore,under the goal of experimental ideas,the esperimental instruments were redesigned and manufactured.

关 键 词：物理实验仪器 NTC热敏电阻 电桥 加热炉 

分 类 号：G305[文化科学]