For controlling motion, the ACR74C indexer is used with the configurations (configured in parker motion manager):
- Master0: Units=mm
- Drive: Zeta
- Motor: Other; Rotary; Resolution=25000 pulses/rev
- Scaling: Transmission = Leadscrew: 2.54mm/rev Reducer(s) = Gearbox: Input = 2 Output = 1 ==> Scaling: 1.27mm = 1 Revolution
- Fault: Enable Positive Hardware Limit Detection and Enable Negative Hardware Limit Detection: On; Deceleration = 5000
| Axis Input | Negative Limit Onboard Input | Positive Limit Onboard Input |
|---|---|---|
| 0 | 1 | 0 |
| 1 | 4 | 3 |
| 2 | 7 | 6 |
| 3 | 10 | 9 |
All Normally Closed
|1|2|3|4|5|6|7|8|9|10|11|12| |1|2|3|4|5|6|
|I|I|O|I|I|O|O|O|O|O |O |O | |O|O|O|I|I|I|
LabJack T8: AIN0: Input for current DAC1: Output to set plate Voltage: two 1.5V batteries are hooked up to lower the output Voltage by 3V because output needs to be between -2 and 2 V, but LabbJack T8 can only output 0-10V
Midpoint Offsets for AECR where measured; for VENUS they were taken from the LabView Emittance scanner program
Velocity 15mm/s; could potentially go faster
main() function combines all classes to a command line executable version of the Emittance_scanner program. Every step is explained and build to handle wrong/undefined inputs see docstrings and comments for more info
Lets user define new variables or load file into program. After having defined the variables and the number of scans per axis, the program let's you hit "Run x/y scan" and completes a number of scans automatically.
- Load Data Button let's user open a file from a previous scan, and Display the Data
- Reset Button, resets everything except Motor Instance.
- End Program Button clears all axes, i.e. moves all axes back to home limit and then closes the program see docstrings and comments for more info
REQUIRED LIBRARIES:
- NUMPY
- MATPLOTLIB
- SCIPY
- LABJACK