NORMALIZED PROCESS DYNAMICS
FIG4 provides graphs of standard deviation as a function of frequency for various temperatures of a differential pressure sensor
FIG4 provides a graph of the frequency response of the standard deviation of a differential pressure sensor at a collection of temperatures. In FIG4, frequency is shown along horizontal axis 400 and the standard deviation of the differential pressure is shown along vertical axis 402. Frequency response curves 404, 406, 408, 410 and 412 represent the standard deviation frequency response for a differential pressure sensor at 185°F, 130°F, 75°F, 20°F, and -40°F, respectively. FIG4 also shows an ideal standard deviation 414, which represents the standard deviation of a sine wave of magnitude 1. This ideal standard deviation has a value of 0.71 for all frequencies and temperatures.
graphs
8
embodiment
5
order
502
shown along vertical axis
400
shown along horizontal axis
414
ideal standard deviation
2
transmitters range
4
uses EQ.
20
embodiment
40
interface application
402
shown along vertical axis
500
shown along horizontal axis
10
process plant
504
graphs
185
sensor operating at
404
Frequency response curves
['4. The computer readable medium of claim 3 wherein the target frequency response comprises a frequency response of a standard deviation of a filtered sensor signal wherein the sensor signal is produced by a model sensor operating at a same range as the sensor and at a selected temperature.']