| 摘要 |
<p>In an arrangement in which the output (Ua) of a sensor (10) is provided to an evaluation circuit (20) in a pulsed manner, a reference voltage (Uref) from a source (21) within the circuit (20) is supplied to a sampling circuit (15) within the sensor during the gaps between the pulses. To this end, a switch (S1) in the output of the sensor is operated at a common frequency (fo) with a sample and hold circuit (15). The sensor (10) may be a hot film air mass meter (30, Fig. 3 not shown) with a pulsed supply.</p> |
