| 摘要 |
<p>PURPOSE:To obtain the waveform remote measuring instrument which corrects a delay time excellently by providing the transmitter of a master station with a synchro nizing signal generating means which sends a synchronizing signal to a slave station periodically and the transmitter of the slave station with a responding means which detects the synchronizing signal and sends a return signal in response to the synchroniz ing signal. CONSTITUTION:The synchronizing signal sent from the synchronizing signal generating circuit 13-1 of the transmitter 13 of the master station is inputted to the responding circuit 23-1 of the transmitter 23 of the slave station and the response signal is sent to the master station. This signal is analyzed by an analyzing circuit 13-2 in the master station and the difference (DELTAt) between the transmission time and reception time is calculated. The mean value of the difference DELTAt is found and the value which is a half as large as the means value is regarded as a transmission delay time T1. The data output timing of the master station is a time (T) delayed behind the absolute time previously by an output control circuit 13-3 and the time when the master station outputs data received from the slave station is set to T-T1, thus correcting the delay time.</p> |
