An imaging unit producing images, and a control unit controlling the imaging unit. The imaging device further comprises: a reference clock unit generating a reference clock； and a signal input/output unit provided between the imaging unit and the control unit and inputting and outputting signals in synchronization with the reference clock generated by the reference clock unit. The control unit comprises: generating unit generating a plurality of control signals； transmitting unit transmitting the plural control signals； receiving unit receiving measurement signals； and extraction unit extracting the measurement signal when the reception times of the measurement signals received by the receiving unit agrees with the extraction timing generated by the generating unit.
