Campbell-scientific TGA100A Overview Manual do Utilizador Página 1

TGA100A Trace Gas Analyzer Overview The TGA100A Trace Gas Analyzer measures trace gas concentration in an air sample using tunable diode laser absorp

TGA100A Trace Gas Analyzer Overview OV6.3 Site Means Sampling Mode The TGA100A’s site means mode is similar to the flux gradient mode in that it cont

TGA100A Trace Gas Analyzer Overview OV6.4 Absolute Concentration / Isotope Ratio Measurements The TGA100A can be configured for highly accurate measu

TGA100A Trace Gas Analyzer Overview OV7. Specifications OV7.1 Measurement Specifications The preliminary frequency response and noise specifications

TGA100A Trace Gas Analyzer Overview The TGA100A multiple-scan mode can be used to measure suitable pairs of gases. Typical performance for some exampl

TGA100A Trace Gas Analyzer Overview OV-14 OV7.2 Physical Specifications Analyzer Length: 211 cm (83 in) Width: 47 cm (18.5 in) Height: 55 cm (2

TGA100A Trace Gas Analyzer Overview OV1. System Components Figure OV1-1 illustrates the main system components needed to operate the TGA100A. These s

TGA100A Trace Gas Analyzer Overview OV2. Theory of Operation OV2.1 Optical System The TGA100A optical system is shown schematically in Figure OV2.1-

TGA100A Trace Gas Analyzer Overview OV2.2 Laser Scan Sequence The laser is operated using a scan sequence that includes three phases: the zero curren

TGA100A Trace Gas Analyzer Overview OV2.3 Concentration Calculation The reference and sample detector signals are digitized at 50 kHz (100 samples pe

TGA100A Trace Gas Analyzer Overview OV4. Multiple Scan Mode The TGA100A can be configured to measure two or three gases simultaneously by alternating

TGA100A Trace Gas Analyzer Overview FIGURE OV5-1. Real Time Graphics Screen In the middle of the screen are graph 1 and graph 2, used to display use

TGA100A Trace Gas Analyzer Overview OV6. Micrometeorological Applications The TGA100A is ideally suited to measure fluxes of trace gases using microm

TGA100A Trace Gas Analyzer Overview OV6.2 Flux Gradient The TGA100A also supports the measurement of trace gas fluxes by the gradient method. A gradi