A FAST-RESPONSE MICROTHERMOCOUPLE

被引：17

作者：

BECKMAN, P ^{[1
]}

ROY, RP ^{[1
]}

WHITFIELD, K ^{[1
]}

HASAN, A ^{[1
]}

机构：

[1] ARIZONA STATE UNIV, DEPT MECH & AEROSP ENGN, TEMPE, AZ 85287 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1993年 / 64卷 / 10期

关键词：

D O I：

10.1063/1.1144389

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A fast-response chromel-alumel (and chromel-constantan) microthermocouple is described and its dynamic characteristics are measured. The microthermocouple features a microdisk junction 0.08 mm in diameter and 2.5 mum thick. Its time constant in turbulent flow of liquid Refrigerant-113 (a poor heat conductor) is measured to be approximately 4.6 ms. This time constant was reduced to approximately 3.4 ms with a phase-lead compensation circuit. It was possible to distinguish between vapor and liquid phase temperatures in turbulent subcooled boiling flow of Refrigerant-113 with the compensated microthermocouple.

引用

页码：2947 / 2951

页数：5

共 15 条

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