Quantum Design
Vibrating Sample Magnetometer (VSM)
Release Version 1.3.6


About This File

This file is intended to provide preliminary information and documentation 
regarding the VSM Option Release.

Table of Contents

1. Installation
2. Release Notes
3. Features


Installation

   Insert the VSM Option CD into the D: drive and from the start menu
   Run... option enter the file name:
              D:\Disk1\SETUP
   Then press OK to start the installation process.

   Note 1: PPMS MultiVu must be installed prior to installation of the VSM
      Option.  Otherwise the installation produces and error and exits.

   Note 2: this installation will replace any existing installation of the VSM
      Option Release without regard to creation date or version.


Release Notes


RELEASE VERSION 1.3.6 build 0
Changed:
1) Removed Shutdown button from the Install/Remove Sample wizard.


RELEASE VERSION 1.3.5 build 0
Changed:
1) Increased tolerance to prevent false following-error alarms on slow systems.


RELEASE VERSION 1.3.4 build 14
Changed:
1) Motor malfunction detection.  Stops measuring and provides an error message.
2) Dropped motor temperature checking in software.  Report temperature alarm once a minute.
These changes only work when using Motor firware release 1.1.11 or later.


RELEASE VERSION 1.3.3 build 16
Added:
1) Detect synchronization crossover cable and provide error message.  Requires
   VSM firmware 1.2.5 or later.
Fixed:
1) Corrected computation for Vector VSM when "Angle Sense" is -1.


RELEASE VERSION 1.3.3 build 15
Fixed:
1) Performance issue causing GPIB SRQ errors.
2) Range error when checking invalid GPIB data.


RELEASE VERSION 1.3.3 build 14
Fixed:
1) Problem with long measurements when running M(T).
2) Lose of temperature control when coil thermometer not responding.


RELEASE VERSION 1.3.3 build 13
Added:
1) Warning if VSM or Motor module SROM is not programmed.


RELEASE VERSION 1.3.3 build 12
Fixed:
1) Jitter in logged field in M(H) hysteresis measurement.


RELEASE VERSION 1.3.3 build 11
Fixed:
1) Hysteresis measure can stall waiting for field status.


RELEASE VERSION 1.3.3 build 10
Added:
1) Phase correction for VSM without crossover sync cable.
Fixed:
1) Problem measuring at frequencies other than 40Hz.


RELEASE VERSION 1.3.3 build 1
Added:
1) Support for VSM without crossover sync cable.
2) Support for transverse VSM.
3) Support for 3120 magnet power supply.


RELEASE VERSION 1.2.4 build 1
Changed:
1) Coil shrinkage factor applied to Moment.


RELEASE VERSION 1.2.3 build 2
Changed:
1) Coil shrinkage factor removed from M-raw.


RELEASE VERSION 1.2.3 build 1

Fixed:
1) Coil shrinkage factor would be erased if the calibration
header was omitted.


RELEASE VERSION 1.2.2 build 7

Fixed:
1) Eliminate drift in position during touchdowns.

Changed:
1) Limit motor amplitude to 2mm if pressure drops below 20 mTorr.


RELEASE VERSION 1.2.2 build 4

Fixed:
1) Amplitude correction improperly applied in moment computation.


RELEASE VERSION 1.2.2 build 2

Fixed:
1) Oven would not measure correctly during a temperature scan.
2) Field Hysteresis measurement will start measuring as soon as the field changes.
3) Increase the repeatability of touchdowns measurments.
4) Update the measurement dialog to show the actual parameters used for the measurement.
5) Motor heat sink monitor will wait 10 seconds before stopping the motor.
6) Change default measurment frequency for Evercool.

Added: 
1) Warning messages when measurements are attempted while the software is initializing.
2) Reduce motor amplitude to 2mm if HiVac becomes enabled during measuring.


RELEASE VERSION 1.2.2 build 1

Fixed:
1) Restore the gain setting when measure dialogs are closed and reopened.
2) Prevent measurements when the hardware is not operational.

Added:
1) A new parameter "SCAN FIT=" to the Coil configuration file so that 
   centering scans can be done on weak signals.  This specifies the 
   tolerance in fitting the center position.  The default is 0.01 (mm).


RELEASE VERSION 1.2.1 build 7

Fixed:
1) One quadrant field hysteresis scans do not achieve the target field.


RELEASE VERSION 1.2.1 build 6

Fixed:
1) Oven would not set the coil temperature to 295K when activating.


RELEASE VERSION 1.2.1 build 5

Fixed:
1) PPMS data selection button on Moment vs. Temperature was inactive.
2) Oven option selection could cause a file not found message.
3) Centering scan would produce strange results.


RELEASE VERSION 1.2.1 build 4

Fixed:
1) Oven error recovery would sometimes lock up.
2) Fixed math error in calculating motor lag.


RELEASE VERSION 1.2.1 build 3

Fixed:
1) Field hysteresis M(H) would skip some fields on the 120 amp power supply.


RELEASE VERSION 1.2.1 build 2

Fixed:
1) Scan temperature sequence command did not change oven temperature..


RELEASE VERSION 1.2.1 build 1

Fixed:
1) Remove large latency in oven data when CAN power supply is active.


RELEASE VERSION 1.2.0 build 30

Fixed:
1) Remove warning message about missing HeaterStick.cfg file.


BETA RELEASE VERSION 1.2.0 build 29

Fixed:
1) Help About does not show correct Oven serial number.
2) The Oven Option does not utilize the default CAN node ID when entry omitted
from Vsm.ini file.


BETA RELEASE VERSION 1.2.0 build 28

Fixed:
1) M(H) dialog does not support asymetric field maximums for non-linear measuremnts
2) Problem with time stamp drift on VSM measurements.


BETA RELEASE VERSION 1.2.0 build 27

Fixed:
1) M(H) dialog has errors in 1/H and Ln(H) when zero crossing.
2) M(H) and M(T) allowed a non-integer number of steps.
3) M(H) dialog would not save and restore the number of temperatures.


BETA RELEASE VERSION 1.2.0 build 26

Fixed:
1) VSM misses some fields in nonlinear M(H) measure commands.


BETA RELEASE VERSION 1.2.0 build 25

Fixed:
1) VSM might fail to start M(T) measure on slower computer.


BETA RELEASE VERSION 1.2.0 build 24

Fixed:
1) VSM would get a repeated error message when an m(H) was running in driven
mode and a timeout occured.


BETA RELEASE VERSION 1.2.0 build 23

Fixed:
1) Oven would not restart from an error condition when a sequence was running.


BETA RELEASE VERSION 1.2.0 build 22

Fixed:
1) Temperatures dropped from discrete hysteresis measurements.
2) Temperature hysteresis dialog did not set modal check boxes.


BETA RELEASE VERSION 1.2.0 build 21

Fixed:
1) Temperatures dropped from discrete hysteresis measurements.


BETA RELEASE VERSION 1.2.0 build 20

Fixed:
1) Occational incomplete hysteresis measurements.


BETA RELEASE VERSION 1.2.0 build 19

Fixed:
1) Stop VSM motor vibration 30 seconds after measurement completes


BETA RELEASE VERSION 1.2.0 build 18

Fixed: 
1) Prevent occasional measurement lockup when running M(T).


BETA RELEASE VERSION 1.2.0 build 17

Fixed:
1) Auto-touchdowns did not work for single measurements.
2) Running a non-Oven M(T) low temperature sequence would raise an exception 
   if oven was used for the same sequence.


BETA RELEASE VERSION 1.2.0 build 16

Fixed:

1) M(H) hysteresis would not record all fields when doing non-continuous 
   measurements.


BETA RELEASE VERSION 1.2.0 build 15

Fixed:
1) M(H) hysteresis would sometime not measure all selected quadrants.
2) M(H) and M(T) dialogs on Cancel would retain the last changes instead
   of reverting to the previous version.
3) M(H) and M(T) dialogs would sometimes show strange settings when 
   displayed from an existing sequence file.


BETA RELEASE VERSION 1.2.0 build 14

Fixed:
1) Validate the manually entered sample offset to a reasonable value.

Changed:
1) Simulation mode maximum field is 16 Tesla.
2) Precision time stamp for measurement data for better synchronization 
   with PPMS.
3) About box shows "Motor Module Serial No.".
4) Allow Oven operation to 1100K for diagnostic testing.

Added:
1) Field driven mode timeout in INI file "FIELD HOLD TIMEOUT=30" minutes.
2) Extended purge cycle parameters ni INI file "PURGE CYCLES=5",
   "PURGE VENT=15" seconds, "PURGE PUMP=60" seconds.


BETA RELEASE VERSION 1.2.0 build 12

Fixed:
1) Display both the HiVac pressure and the dewar pressure in the data file.
2) Computation error in image correction when running oven.
3) Miscellaneous bugs in the first release of the M(H) and M(T) dialogs.
4) Report the oven temperature during touchdowns if oven active.

Changed:
1) "Measure" sequence command is renamed "Adv. Measure"
2) Sample Install Wizard will not purge chamber when already in HiVac.
3) Decrease wait time after a gain change.

Added:
1) Shut down oven whenever the coilset temperature exceeds 350K.
2) Range selection will use hardware to determine displayed ranges.


BETA RELEASE VERSION 1.2.0 build 4

Added:
1) New Moment vs. Field and Moment vs. Temperature sequence commands.
2) New versions of QdCanSrv.exe and Cancomm.dll.


BETA RELEASE VERSION 1.1.1 build 6

Fixed:
1) Restart oven software after Module reboot.


BETA RELEASE VERSION 1.1.0 build 8

Added:
1) Support for the VSM Oven.


RELEASE VERSION 1.0.1 build 8

Fixed:
1) Stop vibrating sample after a Scan is cancelled.
2) Disable the switch to alternate centering button while scanning.
3) The move to home position after a scan was too slow.


RELEASE VERSION 1.0.1 build 7

Fixed:
1) Cancel centering scan leaves the system unable to Scan.
2) Intermittent jerkiness when changing amplitude.

Changed:
1) The default coil shrinkage factor changed to 1.8.


RELEASE VERSION 1.0.1 build 6

Fixed:
1) Fixed the append data file sequence command.
2) Use the correct data file title when creating a new version of a file.
3) Check for acceptable values of sample offset and sample center in the 
   wizard manual entry box, change the box color to white.
4) Change the text in the manual locate dialog to reflect the OK button.
5) Change the current displayed in the friction scan graph to milliamps.
6) Disable the Help button on the center sample dialog.
7) Disable the switch to alternate centering button when doing a scan sample.
8) Disable the Help button on the data file title dialog.

Added:
1) Include the SromCfg.exe utility in the installation.

Changed:
1) Change VSM coil configuration file name to VSMCOIL-xxx.CFG.
2) Allow a scan sample operation in the wizard to be cancelled.
3) Add parameter SHRINKAGE COEFF = x to the Coil configuration file and 
   apply this correction to the Coil correction.
4) Change the default auto-touchdown delta time to 10 minutes.
5) New version of the FlashLoader.exe utility.


RELEASE VERSION 1.0.1 build 5

Fixed:
1) Using default data file from a sequence did not work if the file was
not previously created.
2) Random unchecking of Map25 data selection in the dialog and measurement.
3) Problem with the coil thermometer not being detected.

Added:
1) 

Changed:
1) Default Delta time set to 10 minutes for the automatic touchdown feature.
2) Slow down the centering scan to reduce noise in the calculated position.
3) Remove jerkiness in setting new amplitudes.


RELEASE VERSION 1.0.0 build 16

Initial Release