PRESSURE CALIBRATION DEVICE

• Main Authors: SHINMEN KEIZO, EZURE TAKASHI, KITAJIMA AKIHIKO, KAWAI YOSHIAKI, NAGASHIMA HIROKAZU, SUGIYAMA TOSHIHARU
• Format: Patent
• Language: English; Japanese
• Published: 18.12.2014
• Subjects: MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; PHYSICS; TESTING

PROBLEM TO BE SOLVED: To provide a pressure calibration device capable of high-resolution and high-accuracy pressure measurement in a comparatively-wide measuring range.SOLUTION: A pressure calibration device that includes a pressure measuring section and is configured to calibrate a pressure measuring instrument is provided with: an inclination sensor that detects an attitude of the device; reference calibration means that measures a zero-point reference calibration value; attitude error correction means that corrects an attitude error included in a value measured by the pressure measuring section, on the basis of both the reference calibration value by the reference calibration means and attitude information to be output from the inclination sensor; and correction feasibility determination means that determines whether or not the attitude error correction within a prescribed error range is feasible, on the basis of the attitude information to be output from the inclination sensor. When the correction feasibility determination means determines infeasibility of the correction, the reference calibration means measures the reference calibration value again. 【課題】高分解能で比較的広い計測レンジで高精度の圧力測定が行える圧力校正装置を提供すること。【解決手段】圧力測定部を有し圧力計器を校正するように構成された圧力校正装置において、装置の姿勢を検出する傾斜センサと、零点基準校正値を測定する基準校正手段と、前記基準校正手段による基準校正値と前記傾斜センサから出力される姿勢情報に基づき前記圧力測定部の測定値に含まれる姿勢誤差を補正する姿勢誤差補正手段と、前記傾斜センサから出力される姿勢情報に基づき所定の誤差範囲内での姿勢誤差補正の可否を判断する補正可否判断手段を設け、前記補正可否判断手段で補正不可と判断された場合には前記基準校正手段で基準校正値を再度測定することを特徴とするもの。【選択図】図１