kinds of thermocouple & how to choose index type & price how to fix thermocouple &
fixing material		 example of usage request & order
Fine thermocouple Sheet thermocouple Fine and Sheet thermocouple Multi purpose thermocouple data logger anbesmt Japan

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Why Fine or Sheet thermocouple is superior?

(We explain the conclusion first of all)
Conventional thermocouple Fine thermocouple Sheet thermocouple
conventional thermocouple fine thermocouple sheet thermocouple
Small contact area, then transferred little heat spread to big ball (large heat capacity). Moreover heat runaway through big (e.x. 200 micron) wire section area. Very low response Small contact area, but transferred little heat spread to minimal tip (little heat capacity). Moreover heat don't run away due to small (e.g.25micron) wire. (section area is only 1/64) Heat runaway through big (e.g. 200 micron) wire section area, but transferred heat quantity is several thousand times larger than conventional thermocouple due to large contact area.
Experiment method

We fixed various thermocouple on stainless pot (at same height) using caption tape.
Then we poured hot water .

Data logger : KEYENCE GM-3000
Sampling time : 100ms
 response rate experiment
Experimental result

Comparison of response and accuracy
comparison graph ofresponse rate

Quicker response and higher accuracy


œCharacteristic and Usage of various thermocouple

Type of thermocouple Resistance of thermocouple itself Connectability to compensating wire Strength for Small component Accuracy Response main Usage
Conventional type
(200micron dia.)		 best best best no good no good no good When you need not response and accuracy
Fine thermocouple
(25 & 50micron dia.)		 best best no good best best best for small component or surface
Sheet thermocouple
(40micron thick)		 best best best no good best best for surface
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