| 摘要 |
The invention relates to a pressure measuring device (1) for measuring and/or monitoring pressure of a measured medium (14). The pressure measuring device (1) includes a sensor housing (9) and a measurement transmitter (3), wherein assigned to the sensor housing (9) is a pressure measuring cell (4) with a pressure sensitive measuring element (5), wherein assigned to the pressure measuring cell (4) is a temperature sensor (10; 11; 12; 13), and wherein assigned to the measurement transmitter (3) is a control/evaluation unit (16). In order to increase the accuracy of measurement of the pressure measuring device (1), it is provided, that the control/evaluation unit (16), in the case of an abrupt change of the temperature registered by the temperature sensor (10; 11; 12; 13), ascertains, or provides, a step response, wherein the step response has a sensor-type-specific, settling time (ts), and the control/evaluation unit (16), on the basis of the ascertained, or provided, step response, references the corresponding time-dependent integral temperature of the pressure measuring cell (4), in order to eliminate, or to compensate, the temperature influence on the pressure measurement signal provided by the measuring element (5).
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