| 摘要 |
PURPOSE:To enable the generation of air pressure signal at a high accuracy by transmitting a displacement generated in a first diaphragm to a second diaphragm having one surface closed of a second capsule filled with a non-compressible material through a plunger. CONSTITUTION:A capsule 20 is securely wound and clamped on an outer end flange 19 of an upper guide cylinder 16 sandwitching a first diaphragm 22 between the flange 19 and a step end face 21 thereof 20 and is filled with a wax mixed with a heat conductive metal powder such as steel powder to form a humidity sensitive wax element. A second diaphragm 24 and a second capsule 25 are fastened on a lower guide cylinder 18 and the capsule 25 and a capillary tube 26 connected thereto are filled with a non-compressible fluid 28. Thus, an air pressure signal can be generated at a high accuracy by transmitting a displacement generated in the first diaphragm to the second diaphragm. |
