Download Absorption and Attenuation Meter

Table of Contents
1.
Operation ................................................................................. 1
1.1
1.2
1.3
1.4
1.5
1.6
2.
Installing WETView .......................................................................................... 1
Bench Testing .................................................................................................... 2
Air Tracking ....................................................................................................... 2
Cleaning ............................................................................................................. 3
System Requirements......................................................................................... 4
Operating the Meter ............................................................................................ 5
Instrument Description ........................................................... 11
2.1
2.2
2.3
2.4
2.5
2.6
Instrument Overview ....................................................................................... 11
Optics ............................................................................................................... 12
Electronics........................................................................................................ 13
Pressure Housing Material ............................................................................... 14
Connectors ....................................................................................................... 14
Signal Processing ............................................................................................. 15
3. Data Processing ........................................................................ 17
3.1
3.2
3.3
Analog Acquisition .......................................................................................... 17
Analog-to-Digital Conversion ......................................................................... 17
Digital Processing and Data Output ................................................................. 17
4. Calibration and Characterization ............................................... 26
4.1
4.2
4.3
4.4
4.5
Temperature Correction ................................................................................... 26
Precision ........................................................................................................... 26
Absolute Calibration ........................................................................................ 27
Linearity and Dynamic Range ......................................................................... 27
Air Calibration and Tracking ........................................................................... 27
5. Specifications ............................................................................ 30
5.1
Power Requirements ........................................................................................ 30
6. References ................................................................................ 31
Appendix A: Optional Pressure Sensor ....................................... 31
Appendix B: Legacy Connector ................................................... 32
ac-9 User’s Guide (ac-9)
Revision T
31 July 2008
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