Error correction device

An error correction device to be used in a physical property value detection device capable of detecting a value of a physical property of a detection target, comprising:

• a modulation section configured to receive output signals transmitted from a detection element, the detection element detecting a value of a physical property of a detection target, generating and outputting the output signals, which correlate with the detected value of the physical property of the detection target, the modulation section further configured to modulate the received output signals to pulse signals, and output the modulated pulse signals;
• a setting section for setting a plurality of correction pulse signals having a different pulse width into a series of the modulated pulse signals outputted from the modulation section;
• a transmission path through which the modulated pulse signals and the correction pulse signals outputted from the setting section are transmitted;
• an error calculation section for calculating an error contained in the modulated pulse signals transmitted through the transmission path on the basis of a pair of correction pulse signals in the modulated pulse signals transmitted through the transmission path, where a pulse width of the modulated pulse signal is changed by the error;
• a correction section for correcting the modulated pulse signals to be used for detecting the value of the physical property of the detection element on the basis of the error calculated by the error calculation section;
• and
• a detection section configured to detect the value of the physical property of the detection element on the basis of the modulated pulse signals corrected by the correction section.