| 摘要 |
PURPOSE:To generate an air pressure signal with high precision by transducing the temperature of fluid whose temperature is to be measured into mechanical displacement, and transmitting it to an air pressure transducer at a remote point as the flow displacement of uncompressed fluid. CONSTITUTION:A diaphragm 32 is wound and fixed while clamped between the external end flange 29 of a guide cylinder 16 and the stepped end surface 31 of a capsule 30. The capsule 30 is charged with wax 33 which incorporates metallic powder such as copper powder having good thermal conductivity to constitute a temperature sensitive wax element. When the diaphragm 32 deforms owing to the thermal expansion of the wax 33, that is transmitted to a plunger 35 through hard rubber 38 for diaphragm protection and a rod 39 to displace the uncompressed fluid 34 by as much as the wax 33. |
