‘Atherm’ temperature-sensitive bellows assembly

A new “atherm” temperature sensitive bellows assembly is introduced.

These lightweight, extremely sensitive assemblies are thin-walled, electrodeposited nickel bellows. They are soldered to custom end pieces filled with a working fluid (with a known coefficient of thermal expansion), then sealed, according to the manufacturer.

By sealing a specific volume of fluid within the bellows, volumetric thermal expansion characteristic of the fluid is transformed into a precise, measurable linear movement. This movement can be used as an actuator or calibrated to be read as control data. It is completely reversible due to the extremely low hysteresis of the bellows material.

Additional “atherm” bellows data are yours free.
Servometer - PMG LLC
501 Little Falls Road, Cedar Grove NJ 07009-1291

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