A hot wire type air flowmeter.

摘要

A hot wire type air flowmeter having a drive circuit for controlling the temperature of the hot wire type resistor and for outputting the controlling states as electric signals and an output adjusting circuit for adjusting the electric signals output from the drive circuit, comprises a subtracter being provided in the output adjusting circuit of the hot wire type air flowmeter, and the electric signals output from a non-inverting amplifier in the drive circuit being input to one input terminal of the subtracter and a standard voltage via a voltage follower being input to the other input terminal of the subtracter. <IMAGE>