JPS54123082A - Thermal conductivity meter - Google Patents
Thermal conductivity meterInfo
- Publication number
- JPS54123082A JPS54123082A JP2979378A JP2979378A JPS54123082A JP S54123082 A JPS54123082 A JP S54123082A JP 2979378 A JP2979378 A JP 2979378A JP 2979378 A JP2979378 A JP 2979378A JP S54123082 A JPS54123082 A JP S54123082A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- plate
- pumps
- thermal conductivity
- pair
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
PURPOSE: To make it possible to meter the thermal conductivity in a pormpt manner by providing a pair of electronic heat pumps, which are composed of Pelche elements holding a sample plate inbetween, and a pair of heat reservoirs at a preset temperature such that they are incontact with the pumps so that the temperatures at the both sides of the plate may be metered with the use of the temperature metering element.
CONSTITUTION: Eelectronic heat pimps 2 and 2' are mounted on the both sides of a sample plate 1 such that one is for heat liberation whereas the other for heat absorption. A pair of heat reservoirs 3 and 3' are provided such that they are in contact with the pumps 2 and 2' and that they are held at a preset temperature. By feeding a preset current to the pumps 2 and 2', heat flows out of the one pump 2 and is absorbed through the plate 1 by the other pump 2'. As a result, the whole system promptly assumes a steady state, and the temperature difference ΔT between the bith sides of the plate 1 at that time is metered by means of elements 4 and 4' to determine the calory Q from the pump current and the plate surface temperatures. The thermal conductivity can be easily deduced from Equation -Q/X = λΔT/x (wherein S stands for the surface area whereas x stands for the thickness.). Thus, the thermal conductivity can be promptly metered accurately with the use of a small quantity of the sample.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2979378A JPS54123082A (en) | 1978-03-17 | 1978-03-17 | Thermal conductivity meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2979378A JPS54123082A (en) | 1978-03-17 | 1978-03-17 | Thermal conductivity meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54123082A true JPS54123082A (en) | 1979-09-25 |
Family
ID=12285867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2979378A Pending JPS54123082A (en) | 1978-03-17 | 1978-03-17 | Thermal conductivity meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54123082A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63290949A (en) * | 1987-05-23 | 1988-11-28 | Nippon Inter Electronics Corp | Instrument for measuring thermal conductivity |
| US7682072B2 (en) * | 2002-03-20 | 2010-03-23 | Ngk Insulators, Ltd. | Method of measuring thermal conductivity of honeycomb structure |
-
1978
- 1978-03-17 JP JP2979378A patent/JPS54123082A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63290949A (en) * | 1987-05-23 | 1988-11-28 | Nippon Inter Electronics Corp | Instrument for measuring thermal conductivity |
| US7682072B2 (en) * | 2002-03-20 | 2010-03-23 | Ngk Insulators, Ltd. | Method of measuring thermal conductivity of honeycomb structure |
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