| 摘要 |
In order to provide a highly accurate pressure detecting device which is not affected by a component of an external force, a pressure detecting device which is mounted in a measurement target instrument includes: a strain inducer 15 to which pressure of a pressure medium is applied and which generates strain in accordance with the pressure; and a strain detecting element 16 that is bonded onto a surface opposite to a pressure receiving surface of the strain inducer 15, in which the strain detecting element 16 includes one or multiple central strain resistant bridges 300a which are arranged at a central portion of the strain detecting element 16 in a bonded surface direction, and one or multiple outer peripheral strain resistant bridges 300b - 300n which are arranged at an outer periphery, and in which, for example, deformation of the strain detecting element 16 caused by an external force when being screw-fixed to the measurement target instrument is obtained through the multiple strain resistant bridges, an error of detection pressure caused by the obtained deformation in a pressure value detected through the central strain resistant bridge 300a is corrected, and the corrected pressure value is referred to as a detection value of the pressure detecting device. |
