Dynamic properties refer to the relationship between outputs and inputs while the system is running. The same applies to the dynamic characteristics of pressure transmitters.
The dynamic characteristics of a pressure transmitter refer to the characteristics of the pressure transmitter’s output when the input changes. In practice, the dynamic characteristics of a pressure transmitter are often expressed in terms of its response to certain standard input signals. This is because the response of the pressure transmitter to the standard input signal is easy to find by experimental methods, and there is a certain relationship between the response of the pressure transmitter to the standard input signal and its response to any input signal. The most commonly used standard input signals are step signals and sinusoidal signals, so the dynamic characteristics of pressure transmitters are also expressed in step response and frequency response.
Step response is defined as the zero-state response produced by the system under the stimulus of a unit step signal. In electronic engineering and control theory, the step response is the expression of the output of a general system when the input jumps from 0 to 1 in a very short period of time.
The frequency response characteristics are what every pressure transmitter needs to consider, the frequency response characteristics of the pressure transmitter determine the frequency range to be measured, and the measurement conditions must be maintained without distortion within the allowable frequency range, the frequency response of the pressure transmitter is high, and the frequency range of the measurable signal is wide, and due to the influence of the structural characteristics, the inertia of the mechanical system is larger, resulting in the lower frequency of the pressure transmitter that can measure the frequency.
The frequency response and response time of the pressure transmitter are not the same, and the accuracy of the pressure transmitter is also different. When reading the pressure transmitter parameter table, we should understand the direct and different parameters of these parameters, which is very helpful for us to better understand the performance of the pressure transmitter.
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