Title:
DIFFERENTIAL THERMOBALANCE
Document Type and Number:
WIPO Patent Application WO/1991/002240
Kind Code:
A1
Abstract:
In order to stabilize a base line of a differential heat signal in a differential thermobalance and to improve measurement accuracy of differential calorimetry, the present invention provides a protuberance to each of the sample holder and reference holder, detects a signal, which is obtained by subtracting the temperature difference signal between both protuberances from the temperature difference signal between the sample holder and the reference holder, as a differential heat signal and thus reduces any influences of temperature gradient inside a heating furnace and stabilizes the base line of the differential heat signal to improve accuracy of differential calorimetry.
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Inventors:
NAKAMURA NOBUTAKA (JP)
Application Number:
PCT/JP1989/000761
Publication Date:
February 21, 1991
Filing Date:
July 27, 1989
Export Citation:
Assignee:
SEIKO INSTR INC (JP)
International Classes:
G01N25/48; (IPC1-7): G01N5/04; G01N25/20
Foreign References:
| JPS5044154Y1 | 1975-12-16 | |||
| JPS46720B1 | ||||
| JPS5355195A | 1978-05-19 |
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