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| seebeck:equipment:labview [2011/04/25 22:56] – created rachel | seebeck:equipment:labview [2020/03/06 09:04] (current) – external edit 127.0.0.1 |
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| ====== LabView ====== | ====== LabView ====== |
| For more information, the LabView user manual can be found [[http://sine.ni.com/psp/app/doc/p/id/psp-357|here]]. | |
| | ====The User Interface==== |
| | {{:seebeck:equipment:seebeck_interface.png|}} |
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| | To start the program move the power button to **"on"** and push start on the labview program. When the button is returned to **"off"** the program will automatically save any data you've obtained. |
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| | **"Sample Voltage in mV"** will read the voltage from the Tektronix DM5120 Programmable Digital Multimeter. (potential difference between the blocks) |
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| | **"TC_V in mV"** will read the voltage from the Keithley 195A Digital Multimeter. (Temperature gradient between the blocks) |
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| | The **meter 1 graph** will show the sample voltage as it increases or decreases over time. |
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| | The **meter 2 graph** will show the temperature voltage between the blocks as it increases or decreases over time. |
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| | **"Voltage"** will apply heat to the hot block via the Keithley 2400 Source Meter. Typically we apply 5V to the hot block until **TC_V in mv** reads 0.15 at room temperature (this corresponds to a ΔT of about 3 K see [[seebeck:equipment:LabView:Seebeck Calibration Chart|Seebeck Calibration Chart]] for temperature dependent calibrations). Once the desired temperature gradient is reached, return the voltage to 0. |
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| | The **Take Measurement** button records data every time it is clicked, to record data as the meters return to 0 mV the button must continually be clicked. |
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| | For more information on LabView itself, the LabView user manual can be found [[http://sine.ni.com/psp/app/doc/p/id/psp-357|here]]. |
