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CN101056575A 内窥镜形状检测装置 有权 转让

内窥镜形状检测装置
摘要：
本发明提供一种内窥镜形状检测装置，该内窥镜形状检测装置(3)的源线圈驱动电路部(31)具有：产生正弦波的振荡器(110)，以及将该正弦波放大并经由开关部(112)使源线圈(14i)产生(驱动)交流磁场的放大器(111)。并且，开关部(112)可把直流电流切换到放大器(111)的输出来提供给源线圈(14i)，在源线圈驱动电路部(31)内设置有直流电阻值检测部(113)，该直流电阻值检测部(113)根据在开关部(112)把直流电流提供给源线圈(14i)时的电位降来测定源线圈(14i)的直流电阻值。
摘要（英）：

The source coil drive circuit section (31) of an endoscope profile detector (3) comprises an oscillator (110) generating a sine wave, and an amplifier (111) for amplifying the sine wave and generating (driving) an AC field in a source coil (14i) through a switch section (112). The switch section (112) can supply a DC current to the source coil (14i) while switching to the output of the amplifier (111). The source coil drive circuit section (31) is provided with a DC resistance detecting section (113) for measuring the DC resistance of the source coil (14i) from a potential drop when the switch section (112) is supplying a DC current to the source coil (14i).

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