PULSE CONVERTER

PURPOSE:To spare signal line and reduce number of input ports on the side of a receiving device by rendering two variation quantities of a temperature measuring resistor and a humidity measuring capacitive body into composite signals on one signal line in one pulse converting circuit. CONSTITUTION:A pulse converting circuit is formed by a first pulse generating part 8 and a second pulse generating part 11 which generates pulses in accordance with the variation in the condenser capacitive value and the variation in the resistance value, respectively, a first pulse rise detecting part 9, a first pulse fall detecting part 10, a second pulse fall detecting part 12, and a composite pulse generating part 13 for combining first and second pulses. The first pulse rises up simultaneously with the fall of the output pulse of the detecting part 12, and the second pulse rises up simultaneously with the fall of the output pulse of the detecting part 10. The output signal of a pulse generating part 13 becomes a composite signal of the first pulse and the second pulse.