1:40 - 5:40 pm
1. Configured testing set-up
2. Read data sheet
3. Acquired test data
April 26, 2008
April 25, 2008
04/25/08 Nicole Rodia
1:00 - 5:00 pm
1. Set up testing apparatus for ADC noise rejection tests.
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1. Using a function generator to create high frequency noise on the ADC input. Setup will allow measuring of the noise rejection of the ADC with various noise frequencies and amplitudes. The function generator and 5 V DC power supply are connected to a pseudo-differential input to the ADC through a resistive network. This gives a DC offset of ~2.5 V with a sinusoidal AC signal of ~0.5 V peak-to-peak, centering the noise signal in the center of the 0 to 5 V ADC input range.
1. Set up testing apparatus for ADC noise rejection tests.
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1. Using a function generator to create high frequency noise on the ADC input. Setup will allow measuring of the noise rejection of the ADC with various noise frequencies and amplitudes. The function generator and 5 V DC power supply are connected to a pseudo-differential input to the ADC through a resistive network. This gives a DC offset of ~2.5 V with a sinusoidal AC signal of ~0.5 V peak-to-peak, centering the noise signal in the center of the 0 to 5 V ADC input range.
04/23/08 Nicole Rodia
12:00 - 1:30 pm
1. Reviewed ADC load cell test data
2. Made presentation for lab meeting
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1. Graphed some of the data from the A/D converter testing with the load cell differential input. Observed a few trends
2. Made a power point presentation for the lab meeting discussing my ADC testing. Includes the basic operation of the MAX1402 and preliminary results from load cell testing.
1. Reviewed ADC load cell test data
2. Made presentation for lab meeting
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1. Graphed some of the data from the A/D converter testing with the load cell differential input. Observed a few trends
2. Made a power point presentation for the lab meeting discussing my ADC testing. Includes the basic operation of the MAX1402 and preliminary results from load cell testing.
April 23, 2008
04/23/08 Leticia Rojas
3:30-5:45
1. Worked on Labview data acquisition for ranger
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1. added stuff on the main VI to read error codes. Initialization of error code names, loading an error name file from main display, and showing errors on main display.
1. Worked on Labview data acquisition for ranger
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1. added stuff on the main VI to read error codes. Initialization of error code names, loading an error name file from main display, and showing errors on main display.
April 21, 2008
04/21/08 Nicole Rodia
4:00 - 6:00 pm
7:15 - 9:15 pm
1. Soldered smaller wires onto load cell power and ground wires so that they would fit in the connectors I had soldered to the ADC board.
2. Connected load cell to ADC board for testing. Ran tests at different data rates, different input gains, and with buffered and unbuffered inputs. Collected the data for analysis.
7:15 - 9:15 pm
1. Soldered smaller wires onto load cell power and ground wires so that they would fit in the connectors I had soldered to the ADC board.
2. Connected load cell to ADC board for testing. Ran tests at different data rates, different input gains, and with buffered and unbuffered inputs. Collected the data for analysis.
04/21/08 Leticia Rojas
3:30-5:00
1. Worked on Labview data acquisition for ranger
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2. Made a sub-VI that reads and writes the error code names for the main VI.
1. Worked on Labview data acquisition for ranger
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2. Made a sub-VI that reads and writes the error code names for the main VI.
April 20, 2008
04/20/08 Nicole Rodia
10:30 - 11:00 am
1. Soldered longer wires with connectors onto the supply and ground wires of the load cell for use in testing my ADC eval board.
1. Soldered longer wires with connectors onto the supply and ground wires of the load cell for use in testing my ADC eval board.
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