In addition to the digital display, the manometer described in the previous problem has an analog voltage output that is proportional to the sensed differential pressure in units of in inches of water. A researcher calibrates the analog output by applying a series of known pressures across the manometer ports and observing both the analog and digital output for each input pressure. A linear fit to the data yields P = 1:118E +0:003, where P is pressure (in. H2O) and E is the analog voltage (V). If for zero input pressure, the manufacturer specifies that no output voltage should result, what magnitude of systematic error has been found?
In addition to the digital display, the manometer described in the previous problem has an analog voltage output that is proportional to the sensed differential pressure in units of in inches of water. A researcher calibrates the analog output by applying a series of known pressures across the manometer ports and observing both the analog and digital output for each input pressure. A linear fit to the data yields P = 1:118E +0:003, where P is pressure (in. H2O) and E is the analog voltage (V). If for zero input pressure, the manufacturer specifies that no output voltage should result, what magnitude of systematic error has been found?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
In addition to the digital display, the manometer described in the previous
problem has an analog voltage output that is proportional to
the sensed differential pressure in units of in inches of water. A researcher
calibrates the analog output by applying a series of known
pressures across the manometer ports and observing both the analog
and digital output for each input pressure. A linear fit to the data yields
P = 1:118E +0:003, where P is pressure (in. H2O) and E is the analog
voltage (V). If for zero input pressure, the manufacturer specifies that
no output voltage should result, what magnitude of systematic error has
been found?
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