Quantum Design CM-C User Manual Download Page 2

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Quantum Design

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San Diego, CA 92121
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Fourth edition of manual completed May 2011.

Trademarks

All product and company names appearing in this manual are trademarks or registered trademarks of their respective holders.

U.S. Patents

5,053,834 High Symmetry DC Squid System
5,139,192 Superconducting

Bonds

for Thin Film Devices

5,311,125 Magnetic Property Characterization System Employing a Single Sensing Coil Arrangement to Measure AC

Susceptibility and DC Moment of a Sample (patent licensed from Lakeshore)

5,319,307 Geometrically and Electrically Balanced DC Squid System Having a Pair of Intersecting Slits
5,647,228 Apparatus and Method for Regulating Temperature in Cryogenic Test Chamber

Foreign Patents

U.K.

9713380.5 Apparatus and Method for Regulating Temperature in Cryogenic Test Chamber

Canada 2,089,181

High

Symmetry DC Squid System

Japan 2,533,428

High

Symmetry DC Squid System

Japan 2,533,428

High

Symmetry DC Squid System

Summary of Contents for CM-C

Page 1: ...VSM Oven Option User s Manual Part Number 1097 100 A3...

Page 2: ...1 125 Magnetic Property Characterization System Employing a Single Sensing Coil Arrangement to Measure AC Susceptibility and DC Moment of a Sample patent licensed from Lakeshore 5 319 307 Geometricall...

Page 3: ...able Features of the VSM Oven Option 1 2 1 4 Theory of Operation 1 2 1 5 Overheating Prevention Mechanisms 1 4 1 6 Safety Precautions 1 4 1 6 1 VSM High Temperature Heater 1 4 1 6 2 Cryogens 1 5 1 6 3...

Page 4: ...ts 4 5 4 4 1 Touchdown Centering 4 5 4 4 2 Peak Vibration Amplitude 4 6 CHAPTER 5 VSM Oven Hardware 5 1 5 1 Introduction 5 1 5 2 VSM Oven Hardware Components 5 1 5 2 1 VSM Oven Heater Stick 5 1 5 2 2...

Page 5: ...Measurements 6 5 6 4 3 1 Centering Tab 6 5 6 4 3 2 Advanced Tab 6 5 APPENDIX A Model CM C VSM Oven Module A 1 A 1 Introduction A 1 A 2 Functional Overview A 1 A 2 1 Functional Block Diagram A 2 A 2 2...

Page 6: ...port to the VSM linear motor transport 5 4 Figure 5 5 VSM Oven Option User s Kit 5 4 Figure 5 6 VSM Oven sample mounting platform 5 5 Figure 5 7 Pin assignments on the heater stick connector 5 7 Figur...

Page 7: ...wired access port connector P1 5 7 Table 5 3 Typical resistance values at P1 when heater stick is connected and at room temperature 5 7 Table A 1 Electrical specifications for the Model CM C VSM Oven...

Page 8: ......

Page 9: ...dware and instructions for performing sensitive measurements when the VSM Oven option is installed P 3 Contents of the Manual o Chapter 1 provides an overview of the VSM Oven option the theory of oper...

Page 10: ...M software File Open The symbol indicates that you select multiple nested software options dat The Courier font indicates file and directory names and computer code Important Text is set off in this m...

Page 11: ...ample holder measures the temperature in the sample region and a thermistor at the top connector of the sample holder corrects for heating of the cold junction In this manual we will refer to the VSM...

Page 12: ...This cable passes heater power and temperature readback information to the heater stick via the electrical feedthrough on the wired access port and the wired oven sample rod Figure 1 1 Operating prin...

Page 13: ...andard table for type S thermocouple voltage vs temperature standard and T V inversion of the V T thermocouple table In order to enable temperature control down to 300 K at the heater stick the VSM pu...

Page 14: ...ask that you use standard safe laboratory procedures Use common sense Pay attention to the state of the system and to your surroundings Investigate and take appropriate action if the behavior of the...

Page 15: ...rson wearing a pacemaker electrical medical device or metallic implant must stay at least 5 m 16 5 ft 1 from the dewar In addition personnel must keep all ferromagnetic objects at least 5 m 16 5 ft fr...

Page 16: ...e cryostat or other laboratory equipment such as an NMR magnet as the linear motor transport contains nearly 9 kg of iron 1 6 4 Electricity W A R N I N G The VSM is powered by nominal voltages between...

Page 17: ...will have been performed before you receive the equipment 2 2 1 Terminology To distinguish among the various activities that are involved in installing and operating the VSM Oven option we offer the...

Page 18: ...VSM Oven Components Table 2 1 lists the components of the QD VSM Oven option Please verify that you have received them all before you start the installation Table 2 1 System components of the VSM Ove...

Page 19: ...vate any active options and close the MultiVu program 2 Turn off power to the CAN control tower 3 Insert the VSM Oven Module CM C into a slot in the CAN control tower 4 Turn on the CAN control tower 5...

Page 20: ......

Page 21: ...e sample should be no wider than 3 mm 0 120 in as the heater stick itself is 3 6 mm 0 140 in wide The ideal sample geometry is a thin plate that can be glued flat to the heater stick thus allowing opt...

Page 22: ...tterned heater side of the stick See Section 5 2 1 for a more detailed description of the heater stick b After the surfaces are cleaned and dried place the heater stick in the blue sample mounting pla...

Page 23: ...Option User s Kit to handle the copper foil shield Do not handle the copper shield with your fingers because it might tarnish c Using a clean hard tool such as the handle of a pair of tweezers include...

Page 24: ......

Page 25: ...tecting the voltage that has been induced in the coilset by the magnetized sample This is the same procedure as for the standard VSM option In preparation for the measurement you must use the automate...

Page 26: ...f the VSM Control Center in simulation mode 4 3 3 Install the Sample To install the sample you will use the VSM Install Remove Sample Wizard VSM Install wizard for short which is a set of automated in...

Page 27: ...e subjected to vertical magnetic fields of up to approximately 300 gauss when it passes through the linear motor transport If this is unacceptable for your samples please contact Customer Service at Q...

Page 28: ...Offset button if the sample signal is large enough to be detected typically more than 10 5 emu You may need to apply a magnetic field in order to create a magnetic moment Click on Enter Offset Manual...

Page 29: ...ake measurements with the VSM Oven option 4 4 Taking VSM Oven Measurements Just like with the standard VSM mode you can perform VSM Oven measurements by using immediate mode commands e g from command...

Page 30: ...Amplitude The maximum Peak Amplitude is different for the standard VSM and the VSM Oven As shown in Figure 4 7 the maximum oscillation amplitude of the VSM linear motor is 2 mm peak when the VSM Oven...

Page 31: ...lectrical components of the VSM Oven option Section 5 3 describes the contents of the VSM Oven User s Kit 5 2 VSM Oven Hardware Components This section describes each of the basic hardware components...

Page 32: ...at the top of the heater stick inside the protective shield The function of this thermistor is to correct the cold junction temperature of the thermocouple because the thermocouple table is referenced...

Page 33: ...during measurement Keep the magnets clean and prevent them from contacting any magnetic object Electrical Connections Bottom This electrical connector is the bottom of the wiring that feeds through th...

Page 34: ...um tight seal Figure 5 4 Attaching the wired access port to the VSM linear motor transport 5 3 VSM Oven Option User s Kit The VSM Oven Option User s Kit Figure 5 5 contains miscellaneous hardware and...

Page 35: ...ter Sticks These heater sticks are used as the heater thermometer system and sample holder of the VSM Oven option The heater stick plugs into the bottom of the oven sample rod Sections 5 2 1 and 5 4 1...

Page 36: ...ater stick after you have mounted a sample The copper foil radiation shields have a two fold purpose First the high thermal conductivity of copper makes it an ideal medium for maintaining a thermally...

Page 37: ...cess port connector provides a feedthrough to the heater stick Figure 5 8 shows the connector on the wired access port as viewed from the outside Note that pins 4 and 5 are jumpered together inside th...

Page 38: ...re 5 9 VSM Oven Control cable 5 4 4 Model CM C VSM Oven Module Figures 5 10 and 5 11 show the front and back of the Model CM C VSM Oven module 4101 200 which provides the heater with current and reads...

Page 39: ...Chapter 5 Section 5 4 VSM Oven Hardware VSM Oven Electronics Quantum Design VSM Oven Option User s Manual Rev A3 5 9 May 2011 Figure 5 11 Back panel of the Model CM C VSM Oven module...

Page 40: ......

Page 41: ...ncorporated into MultiVu as part of the standard VSM software so you will use the same software to take measurements with the standard low temperature VSM and the VSM Oven Assuming that the VSM and VS...

Page 42: ...n option 6 4 1 MultiVu Changes 6 4 1 1 WRITING SEQUENCES If you have the VSM Oven hardware MultiVu will allow you to write sequences containing temperatures up to 1000 K In fact you do not have to be...

Page 43: ...ou select VSM Oven mode and complete the VSM Install Remove Sample Wizard the Status area will report Oven Active and VSM Oven Selected Figure 6 1 If you had selected standard VSM mode the Status area...

Page 44: ...e two versions of the VSM software also differ As shown in Figure 6 3 these pages display an oven heater stick instead of the VSM sample rod Note A green dot appears in the illustration after a scan h...

Page 45: ...n mode after operating at low temperatures in standard VSM mode there will be a slight thermal expansion of the sample chamber Hence you will improve accuracy by using touchdowns for approximately 30...

Page 46: ...r 6 MultiVu and VSM Oven Enabled Software VSM Oven Software 6 6 VSM Oven Option User s Manual Rev A3 Quantum Design May 2011 Figure 6 5 Advanced tab of VSM Measurement dialog box showing peak amplitud...

Page 47: ...le 4101 200 is a temperature control module that was designed for the specific needs of the VSM Oven option Figure A 1 shows the module and its front panel The principle function of this module is to...

Page 48: ...ctional Block Diagram Figure A 2 Functional block diagram of Model CM C VSM Oven module A 2 2 Specifications Table A 1 Electrical specifications for the Model CM C VSM Oven module Heater Voltage Compl...

Page 49: ...or Model CM C VSM Oven module LED COLOR STATUS MEANING AND OR SOLUTION PWR Green On The processor is running with no errors normal Red Flashing Errors were encountered during the self test The flashin...

Page 50: ...couple 2 Thermistor A 3 AUX1 4 AUX2 5 AUX3 6 AUX4 7 Heater A 8 N C 9 Thermocouple 10 Thermistor B 11 AUX6 12 AUX7 13 AUX8 14 AUX9 15 Heater B A 3 2 2 JC 2 AUX CONNECTOR The JC 2 AUX connector is avail...

Page 51: ...ernal jumper sets the most significant bit If the selector is set to 0 the module uses its default address For a Model CM C VSM Oven module the default address is 12 A 4 1 2 GUIDE HOLES The two guide...

Page 52: ...dule A 6 VSM Oven Option User s Manual Rev A3 Quantum Design May 2011 Table A 4 Pinout table for QD CAN connector on rear of the Model CM C VSM Oven module PIN FUNCTION 1 24 V 2 CAN Low 3 Power Return...

Page 53: ...4 5 Install tab 4 2 Install Remove Sample Wizard 2 10 4 2 4 5 6 3 6 4 LEDs module front panel A 3 linear motor transport 1 5 2 3 4 3 5 3 5 4 load position 4 2 4 3 magnetic field 1 5 1 6 4 3 4 4 magne...

Page 54: ...pper foil shields 3 3 5 6 temperature control 1 2 5 9 A 1 maximum coilset 1 4 6 2 heater stick 1 1 1 3 5 2 terminology 2 1 2 2 theory of operation 1 2 thermal homogeneity 5 6 thermistor 1 1 1 3 5 2 5...

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