An accuracy statement for a facility used to calibrate static pressure transducers and differential pressure transducers at high base pressure
Abstract
A facility was developed to calibrate pressure transducers that are used in a gas mass flow facility. Both static and differential pressure transducers can be calibrated. An air dead weight tester is the standard for static transducers in the range from 3.8 to 4.5 MPa. An air dead weight tester is also the standard for the differential pressure transducers in the range of 2.5 kPa to 50 MPa; a cistern manometer. This, plus the uncertainties in the high pressure corrections to the cistern manometer and measurement of the mercury temperature, contributes plus or minus 690 ppm to the uncertainty of the differential pressure transducer calibrations.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- June 1982
- Bibcode:
- 1982STIN...8316736S
- Keywords:
-
- Calibrating;
- Pressure Sensors;
- Accuracy;
- Differential Pressure;
- Gas Flow;
- Manometers;
- Mass Flow;
- Mercury (Metal);
- Standards;
- Static Pressure;
- Instrumentation and Photography