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P198
Full Scale Output (FSO) – The algebraic difference between the output of the transducer or transducer and required signal conditioning (e.g. piezoelectric pressure transducer and charge amplifier, capacitive pressure transducer and voltage amplifier, optical pressure transducer and photodiode amplifier) at the full scale or upper input measurand and the lower limit.
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P199
Hysteresis 1 – The maximum difference in output, at any measurand value within the specified range, when the value is approached first with increasing and then with decreasing measurand.
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P200
NOTE: Hysteresis is expressed in percent of the applied input pressure, during any one calibration cycle. Friction error is included with hysteresis unless dithering isspecified.
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P203
Life, cycling 1 – The specified minimum number of full range excursions over which a transducer will operate as specified without changing its performance beyond specified tolerances.
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P204
Life, operating 1 – The specified minimum length of time over which the specified continuous and intermittent rating of a transducer applies without change in transducer performance beyond specified tolerances.
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P205
Life, storage 1 – The specified minimum length of time over which a transducer can be exposed to specified storage conditions without changing its performance beyond specified tolerances.
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P206
Linearity 1 – The closeness of a calibration curve to a specified straight line.
NOTE: Linearity is expressed as the maximum deviation of any Calibration point on a specified straight line, during any one Calibration cycle. It is expressed as ”within ± __ percent of full scale output.” |
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P207
Long Term Stability – Stability is the ability of a transducer to reproduce output readings obtained during its original calibration, at room conditions, for a specified period of time; it is typically expressed as “within __ percent of full scale output for a period of __ months.”
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P208
Noise – Any unwanted signal in the measurement system other than the desired pressure response [23]. Noise sources include acoustic, mechanical and electrical.
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P209
Minimum Detectable Signal (MDS) – The total Root-Mean-Square output noise due to all acoustic, mechanical, and electrical noise sources divided by the sensitivity [24].
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P210
Overshoot – The amount of output measured beyond the final steady output value, in response to a step change in measurand. Expressed in percent of the equivalent step change in output. [1]
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P211
The maximum theoretical overshoot of an ideal second-order transducer is 100 percent. Latter case occurs when ζ is zero. [23]
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P212
Range (Transducer Range) – The measurand value, over which a transducer is intended to measure, specified by its upper and lower limits [23] and within which the parameters such as linearity, hysteresis and repeatability are specified.
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P213
Repeatability 1 – The ability of a Transducer to reproduce output readings when the same measurand value is applied to it consecutively, under the same conditions, and in the same direction.
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P214
NOTE: Repeatability is expressed as the maximum difference between output readings; it is expressed as “within ± __ percent of full scale output. Two calibration cycles are used to determine repeatability unless otherwise specified.
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P215
Repeatability - Short Term – Repeatability is expressed as the maximum difference between output readings; it is expressed as “within ± __ percent of Full Scale Output.” Two calibration cycles are used to determine repeatability unless otherwise specified.
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P217
Resolution 1 – The magnitude of output step changes as the measurand is continuously varied over the range.
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