SIGNAL TRANSMITTING EQUIPMENT

摘要

PURPOSE:To remove the influence of temperature drift in an electrooptical conversion part by temporarily converting an electric signal into a frequency component and then send the frequency component to the electro-optical conversion part to convert the input signal into an optical signal. CONSTITUTION:This signal transmitting equipment is provided with a signal conversion part 11 for executing the voltage-frequency conversion of an electric signal, the electro- optical conversion part 7 for converting an output signal from the conversion part 11 into an optical signal, an optical transmission line 8 for transmitting the optical signal outputted from the conversion part 7, a photoelectric conversion part 9 for converting the optical signal outputted from the line 8 into an electric signal, and a detection signal processing part 12 for executing the frequency-voltage conversion of the output signal from the conversion part 9 and processing the converted signal. The 1st signal conversion part 11 executes the voltage-frequency conversion of the electric signal and transmits the converted frequency signal to the output side through the optical transmission line 8. The output side converts the transmitted signal into an electric signal and the 2nd signal conversion part 12 executes the frequency-voltage conversion of the electric signal to reproduce the original electric signal. Thereby influence due to the temperature drift of a light emitting diode or the like can be suppressed to a minimum state.