APS Magnetic Device Magnetic Measurement Lab Control Systems Support

(MD-Ctl Support)


Our Mission

We provide 24x7 support to the APS Insertion Device (ID) Magnetic Measurement Lab Control Systems. We make sure to meet and exceed the expectations of our clients: scientists and their associates in using the Magnetic Measurement Lab Control Systems.


Current Lab Systems


Magnetic Field Spatial Profile Hall Probe Measurement System

Hall Probe and Moving Coil ID Field Measurement System are designed to measure the magnetic field and field integral distributions of IDs. APS has two Hall Probe and Moving Coil ID Field Measurement Systems. Each consists of a granite table (7 meters long for the 6-meter bench and 4 meters long for the 3-meter bench), a 3-axis motorized stage (X-linear, Y-linear, and W-rotary), a calibrated Hall probe sensor, and a moving coil sensor. The sensors are mounted on the stage. The stage is hosted on the granite table with an air bearing that guides it moving along the Z direction.

The control and data acquisition system is a PXI based computer system. With the latest state-of-the-art Field Programmable Gate Array (FPGA) technology, the system is capable of synchronized measurements of X (1 micron in resolution), Y (0.5 micron in resolution), and Z (1 micron in resolution) positions, time (25 ns), voltage (6-1/2 digits resolution), and temperature (0.1 oC accuracy) with the following options:

  1. Hall Probe ID Magnetic Field Measurement
    Multiple measurements of the magnetic filed along any selected axis, shifted across a second axis. Real-time calculation and plot of the 1st and the 2nd field integrals, and the synchrotron radiation brightness with the integrated IDL Magnetic Analysis module.

  2. Moving Coil ID Magnetic Field Integral Measurement
    Multiple measurement of the magnetic filed integral along any selected axis. Real-time calculation and plot of the 1st and the 2nd field integrals.

  3. Temperature Sensing
    Multi-channel measurements of temperature.

Computer control software has been developed to coordinate and automate the control, data acquisition, and real-time data analysis effort.

Click here to download the software and documentation.


Magnetic Field Integral Measurement System

Stretched coil system can be used to measure the vertical and horizontal components of the ID magnetic field integrals along the ID longitudinal direction. The APS ID Field Integral Measurement System consists of a set of stretched coil supported by two automated 4-dimentional stages W, X, Y, and Z. The control and data acquisition system is a PXI based computer system. A computer control software has been developed to coordinate and automate the control, data acquisition, and real-time data analysis effort.

With the latest Field Programmable Gate Array (FPGA) technology, the system's Standard Deviation is better then 0.12 Gauss*cm in earth magnetic field integral measurement, that is over ten (10) time better then the current similar start-of-the-art systems available in the world. It is truly the world's best stretched coil magnetic field integral measurement system.

Click here to download the software and documentation.


Hall Probe Calibration System

The Hall Probes used to characterize the Insertion Devices need to be calibrated. The APS Magnetic Measurement Lab Hall Probe Calibration System consists of a Precision Magnet Power Supply System that generates even magnetic fields, a Hall Probe based Digital Teslameter system that provides reference field and temperature read outs, an Nuclear Magnetic Resonant (NMR) Teslameter that measures the absolute field strength, a Motorized NMR Probe Supporting Stage that positions the right NMR Probe in the right position, and a Precision Digital Multimeter that measures the Hall voltage of the Hall Probe under calibration. A computer control software has been developed to coordinate and automate the calibration effort.

Click here to download the software and documentation.


Other Tools

Multiple SmartMotor Control Module (Controls up to 5 SmartMotors via RS-232)


Tools and Links

Download LabVIEW Run Time Engine

PXI Systems Alliance Website

National Instrumentation Website

Heidenhain Website

Parker Automation Website


Contact Information

Contact Person:

  Joseph Xu, Ph. D., Computer Scientist

Telephone:

  630-255-8379

Fax:

  630-252-6123

Address:

 

Argonne National Laboratory

Building 401, Room C2270

9700 South Cass Avenue

Argonne, IL 60565 USA

E-mail:

  jzxu@aps.anl.gov