PROBLEM TO BE SOLVED: To provide an endoscope system or the like capable of detecting a position / angle of a movable member with high accuracy even when a feeding path to a position / angle sensor is long and wiring resistance cannot be ignored. An endoscope 1 having a position / angle sensor 11 and an amplifier circuit 12, a memory for storing output error sensitivity data and a first wiring resistance value R PGND , and an output signal V out from the amplifier circuit 12 are stored. A processor 2 having a signal processing circuit 22 to be processed is provided, and the signal processing circuit 22 outputs based on a value obtained by multiplying the difference between the first wiring resistance value RPGND and the processor wiring resistance value by the output error sensitivity data. An endoscope system that corrects the error of the signal V out . [Selection diagram] Fig. 1【課題】位置／角度センサへの給電経路が長く、配線抵抗が無視し得ない場合にも、可動部材の位置／角度を高い精度で検出することができる内視鏡システム等を提供する。【解決手段】位置／角度センサ１１および増幅回路１２を有する内視鏡１と、出力誤差感度データおよび第１の配線抵抗値ＲＰＧＮＤを記憶するメモリと、増幅回路１２からの出力信号Ｖｏｕｔを処理する信号処理回路２２を有するプロセッサ２と、を備え、信号処理回路２２が、第１の配線抵抗値ＲＰＧＮＤとプロセッサ配線抵抗値との差分に出力誤差感度データを乗算した値に基づいて出力信号Ｖｏｕｔの誤差を補正する内視鏡システム。【選択図】図１
