| 摘要 |
<p>A field device, especially an ultrasonic, flow measuring device, comprising: a transmitter for producing an alternating exciter signal; and at least one transducer, especially first and second ultrasonic transducers. The transmitter additionally has a generator for producing the alternating exciter signal and a transmitting stage, wherein the generator is connected via the transmitting stage with at least the first ultrasonic transducer. An output of the transmitting stage is connected with the transducer, especially the first ultrasonic transducer, via a first signal path, wherein the first signal path has a first resistance element, wherein a second signal path branches from the first signal path, wherein the second signal path has a second resistance element connected on one side to ground for lessening impedance related fluctuations of the exciter signal, wherein the second signal path branches from the first signal path between the output of the transmitting stage and the first resistance element.</p> |
