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Response time of a thermometer

 

作者: Volker Thomsen,  

 

期刊: The Physics Teacher  （AIP Available online 1998）
卷期: Volume 36, issue 9  

页码: 540-541

 

ISSN:0031-921X

 

年代: 1998

 

DOI:10.1119/1.880128

 

出版商: American Association of Physics Teachers

 

关键词: thermometer;response time;coefficient of convective heat transfer;measuring devices

 

数据来源: AIP

 

摘要:

The response time of a thermometer is governed by Newton’s law of cooling. The time constant is analogous to that of electrical RC circuits. The response time of a thermometer is, however, critically dependent upon the coefficient of convective heat transfer of the (liquid) medium being measured. This places the thermometer in a unique category among measuring instruments.

 

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