This page is to collect all ongoing tasks about the target software, particularly LabVIEW. All finalized (established) information should be added to another page. Old information is saved in this sub page.
Learning Materials
We have the following devices as spares. You might use them to learn how to communicate with them in VI.
| Devices | Communication | Function |
|---|---|---|
| MCC USB-202 | MCC Library | Multi-channel voltage DAQ. |
| MCC E-TC | MCC Library | Multi-channel thermocouple DAQ. |
| LabJack T4 | LabJack Library | Multi-channel voltage DAQ. |
| Teledyne Hastings THCD-401 x 2 | Ethernet | Controller for flow controller/monitor. |
| LakeShore 218 | RS-232 | Monitor for temperature sensors (chip resistor & Cernox). |
You might try any directory in our Test-VIs repository; https://github.com/uva-spin/Test-VIs . Some of them don't require any hardware but show you how to structure the event loop in VI.
List of Ongoing/Open Tasks
| Category | Task | Person/Progress | Note |
|---|---|---|---|
| Magnet PS | We need a field indicator in the cave. | Anyone? | First design a proper hardware setup. |
| GV bypass | Need to figure out a way to fill and keep filling with the nose level over the lower heat exchanger chip resistor during DNP production mode. We need the main flow to be around 20 slm during this mode and then only way that will work is if the place where the LHe is coming from is under liquid. | ||
| Fridge valve | When the run valve is PIDing we need it to open gradually to keep the level so that the flow doesn't go too high. For bypass this is not important but for run valve we want to keep the main flow low but replenish the liquid level. Right now, this PID is making the flow shoot up and down is cycles with very high flow. | Kenichi | |
| GV bypass | The gv-bypass opens too much to get too high of flow when PIDing in pressure. It seems to open and closing a lot at large amplitude. We want this to be much more gradual and try to be conservative on delivering to much flow in spikes. The stability of the PID needs to be improved. Also, for manual control the precision of software control doesn't match the minimal step size, we should update that. | Kenichi | |
| PDP | Add calculators for t1. | Kenichi | Not PDP but data summary page? |
| Alarm | We also need either a webpage or a script that says what to do in case of each of these alarms. | Make a trouble-shooting page. | |
| PDP | Generalize the UVA PDP to be usable for the LANL system also. | Switch coil, frequency, etc. | |
| New VI | Make a set of VIs for RF modulator, R&S SMB100B. | Mohit | |
| New VI | Make a set of VIs for RF modulator, Agilent N5181A. | Mohit | |
| Test | Measure the DAC device (NI PCIe-6321) for the RF modulator. | ??? | Max frequency, etc. |
| New VI | Make a set of VIs for Pfeiffer Vacuum OmniControl 200. | Forhad/Harsha | Close to completion |
| New VI | Make a set of VIs for Pfeiffer Vacuum TPG 366 (MaxiGauge) via Ethernet. | Huma | |
| New VI | Make a set of VIs for the annealing-plate controller. | Vaniya | |
| Magnet PS | Stabilize the USB cable for the photo-diode sensor system for the Shim PS. | Harsha |
Recently Completed Tasks
| Category | Task | Person | Note |
|---|---|---|---|
| Heat tape | Test the RS-485 communication with the power controller (Fuji Electric PXF4). | Completed. | |
| PDP | Make auto switching through each NMR channel. | Completed. | |
| PDP | Remove unused parts of the VI. | ||
| Magnet PS | We should get the information of Clamped/Reate-Limit/Quench from the Mercury-iPS to the VI. | Completed | |
| PDP | Add calculators for TE | Completed | Implemented in data summary page. |
| Magnet PS | We need a power-indicator on the shim power supply. These are the shim-coil-power indicators. | Completed. | |
| Magnet PS | Need to be able to ramp-down 0A with 0.5A/m rate, so there should be a preset for that. | Completed. | |
| Magnet PS | Need a manual override in the VI. | Completed. | |
| PDP | Import the readings of He4 & He3 pressures from CCP. | Completed. | Over TCP/IP. |
| Alarm | We need a target alarm handler that allows us to turn on or off alarms from some main GUI. We should be able to silence and initiate whatever alarms we want at any given time based on what is going on. | Completed. | There is a configuration webpage since Aug. 2023. |
| GV bypass | Add to pid on 1000/fridge pressure too. | Completed. | The 1000 sensor is used when the pressure is >100 Torr. |
RF Modulator
to be written.
Meeting Materials
New materials should be posted on SeaQuest DocDB.
| Date | Title | Presenter | File |
|---|---|---|---|
| VIs for MCC E-TC | Kenichi | labview_20210810.pdf |
| Update on LN2 Bos | Vibodha | SCMeetig_August25.pptx |
| Zulkaida | ||
| Step count ADC length relationship | Vibodha | |
| Updates on slow control rack and target computer | Kenichi | labview_20210915.pdf |
| MKS 670 + PDP and LakeShore 218 + GPIB | Kenichi | labview_20210922.pdf |
| VIs for MCC E-TC | Kenichi | labview_20210929.pdf |
| VIs for MCC E-TC | Kenichi | labview_20211013.pdf |
| Lifter Vi update | Vibodha | |
| MCC E-TC & Slow Control Data Monitor | Kenichi | labview_20211103.pdf |
| Slow Control Data Monitor & MCC USB-202 | Kenichi | labview_20211110.pdf |
| Slow Control Data Monitor & MCC E-TC with long TC | Kenichi | labview_20211117.pdf |
| Some list about pressure sensor | Zulkaida | |
| Slow Control Data Monitor, NMR Computer & MCC USB-202 with TC | Kenichi | labview_20211124.pdf |
| NMR computer & MKS 615 | Kenichi | labview_20211201.pdf |
| Lifter VI | Vibodha | |
| Slow-Control System, NMR Computer & MKS 615 | Kenichi | labview_20211208.pdf |
| Test of MKS 615 with LN2 Test of MCC E-TC + Long TC in LN2 | Kenichi Kenichi | |
| TCP/IP communication of spill info, N of sweeps/measurement on PDP | Kenichi | slow_cont_20220119.pdf |
| PDP Readout Test | Kenichi | slow_cont_20220126.pdf |
| TCs for magnet coils and others; Rearrangement of KF connection | Kenichi | slow_cont_20220216.pdf |
| Cryo Control Panel | Kenichi | slow_cont_20220302.pdf |
| TCs for magnet coils; Cryo Control Panel | Kenichi | |
| Cryo Control Panel | Kenichi | |
| Cryo Control Panel | Kenichi | |
| Run+Bypass Valve in CCP | Kenichi | |
| MKS670 and MaxiGauge in CCP | Kenichi | |
| LCW flow meter, TC, CCP | Kenichi | |
| Measurement of NMR noise level Logging, Automated alarm | Kenichi Kenichi | |
| QT HMI | Kenichi | |
| QT HMI, Chart-axis control | Kenichi | |
| TCs; Cables for MKS 615 | Kenichi | |
| Magnet PS Shim Relay | Kenichi | |
| Logging of roots-pump PLC; Pressure-sensor locations | Kenichi | |
| HiPace 1200 Turbo-Pump (back-up) | Farooq | |
| Target Lifter procedure and microwave updates | Vibodha | |
| Lessons Learned in Magnet Slow Cooldown | Kenichi | |
| NMR Data File & Analysis Macro | Kenichi |