| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressure sensor with satisfactory temperature characteristics in which heat caused at welding is made to escape from a diaphragm, the resistance of the diaphragm is small, and the amount of temperature correction due to the effects of volume changes caused by the temperature of a transmitting fluids is small. SOLUTION: A ring 5 is pressed in a recessed part formed in a body 4 on the side connected to a pressure port 2. The ring 5 is formed of a material (metal or the like) of a high coefficient of thermal conductivity to transmit heat when the pressure port 2 is welded to the body 4 with the diaphragm 3 interposed.
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