The Thermal and Rainwater Runoff Performance of an Extensive ...
The Thermal and Rainwater Runoff Performance of an Extensive ...
The Thermal and Rainwater Runoff Performance of an Extensive ...
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7.16 NI DAQmx <strong><strong>an</strong>d</strong> Labview Signal ExpressNI DAQmx <strong><strong>an</strong>d</strong> Labview Signal Express s<strong>of</strong>tware were installed prior to the connection <strong>of</strong>NI devices 9211 <strong><strong>an</strong>d</strong> 6008.Once the NI devices were connected to the laptop via USB, the data acquisition system wasready for testing <strong><strong>an</strong>d</strong> running/recording results.7.161 Data Acquisition Method<strong>The</strong> following procedure was followed in Labview Signal Express:‣ Add Step‣ Acquire Signals‣ DAQmx Acquire‣ Analog InputFor the first step, temperature was selected for thermocouple measurements <strong><strong>an</strong>d</strong> for thesecond step; voltage was selected for relative humidity measurements.7.162 <strong>The</strong>rmocouple StepFigure 35 shows the thermocouple setup for the NI USB-9211 device.Niall Carroll Page 54<strong>The</strong> <strong>The</strong>rmal <strong><strong>an</strong>d</strong> <strong>Rainwater</strong> <strong>Run<strong>of</strong>f</strong> <strong>Perform<strong>an</strong>ce</strong> <strong>of</strong> <strong>an</strong> <strong>Extensive</strong> Green Ro<strong>of</strong> System
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