Patent ID: 7552633

Claim:
A thermal type gas flowmeter comprising: a first heating resistor arranged in an environment through which a gas to be measured flows; an electronic circuit to which the first heating resistor is operatively connected electrically, wherein the first heating resistor is caused to generate heat by supplying power thereto to measure the flow of the gas; a conductive member extending in one direction from the first heating resistor, one end of the conductive member being connected to a housing, for supporting the first heating resistor supported by another end of the conductive member on the housing; a second heating resistor provided on the conductive member and between the first heating resistor and the one end of the conductive member for generating heat when supplied with power; and a temperature sensing resistor provided at a portion of the conductive member positioned between the first and second heating resistors for sensing a temperature of the portion, wherein power supply to the second heating resistor being controllable such that the temperature of the conductive member positioned between the first and second heating resistors is closer to that of the first heating resistor.