1. Manuals
  2. Brands
  3. Metrolab Manuals
  4. Measuring Instruments
  5. TFM1186
  6. User manual

Metrolab TFM1186 User Manual

Three-axis magnetometers. thm1176 series
Hide thumbs Also See for TFM1186:
Table of Contents

Advertisement

Quick Links

Download this manual
Three-axis Magnetometers
THM1176 and TFM1186
User's Manual
Version 1.3
(Revision 1.2)
April 2014
Pantone 286
Pantone 032
Magnetic precision has a name
Distributed by:
Air-Met Scientific Pty Ltd
Air-Met Sales/Service
P: 1800 000 744
F: 1800 000 774
E: sales@airmet.com.au
Work with Confidence
Air-Met Rental
P: 1300 137 067
E: hire@airmet.com.au
W: www.airmet.com.au

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the TFM1186 and is the answer not in the manual?

Questions and answers

Related Manuals for Metrolab TFM1186

Summary of Contents for Metrolab TFM1186

  • Page 1 Pantone 286 Pantone 032 Magnetic precision has a name Three-axis Magnetometers THM1176 and TFM1186 User's Manual Version 1.3 (Revision 1.2) April 2014 Distributed by: Air-Met Scientific Pty Ltd Air-Met Sales/Service Air-Met Rental P: 1800 000 744 P: 1300 137 067 F: 1800 000 774 E: hire@airmet.com.au...
  • Page 2 THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA REVISION HISTORY v. 1.0 r. 1.0 May 2008 First release v. 1.0 r. 1.1 May 2008 Various fixes v. 1.1 r. 1.0 July 2008 Various fixes v.

  • Page 3: Table Of Contents

    GETTING STARTED ....................1   1-   Introduction ......................1   GETTING STARTED ....................3   2-   Quick Start Guide ....................3       Using the THM1176/TFM1186 with a desktop computer ................. 3     2-1-1 PC: Software Installation ....................... 3  ...
  • Page 4 TRIGger ..............................42     UNIT ............................... 43     5-10 Write and Read ............................43 PROGRAMMING THE THM1176/TFM1186 ............44   6-   USB Interface ....................44       General ..............................44     SCPI Instrument Model .......................... 45  ...
  • Page 5 THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA     0: No Error ............................. 78     -100: Command Errors .......................... 78     9-2-1 -102: Syntax error ........................78     9-2-2 -104: Data type error ........................

  • Page 6: Getting Started

    The recommended calibration interval is 18 months. You can benefit from a discounted price for the calibration if you return your instrument to Metrolab at a time that corresponds to our batch calibrations; please see Section 7-10 for details.
  • Page 7 We hope the THM1176/TFM1186 will help you perform your magnetic field measurements easily and accurately. If you have problems and your reseller cannot help you further, the Metrolab team is ready to help. Even if you don’t have problems, we are always interested in knowing more about how our instruments are used.

  • Page 8: Getting Started

    1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA GETTING STARTED 2- Quick Start Guide 2-1 USING THE THM1176/TFM1186 WITH A DESKTOP COMPUTER 2-1-1 PC: Software Installation • Insert the installation CD. • Install the National Instruments LabVIEW Runtime Engine 2010 SP1 by double-clicking on \PC\LVRTE2010sp1std.exe.

  • Page 9: Pc Or Mac: Measurement

    Overview. See Chapter 4-Software User Interface for details on using the software. • (Does not apply to TFM1186 – see Section 2-4!) Check the offset before each series of measurements by placing the probe in the Zero Gauss Chamber. If the offset is higher than desired, leave the probe in the Zero Gauss Chamber and perform the User Offset Correction procedure using the Offset / ZERO button on the Setup page.

  • Page 10: Handheld: Measurement

    • Be sure to stop the measurement software using the Stop button before turning off the PDA or unplugging the THM1176/TFM1186 – see the note below. • Manipulate the probe and check the offset as described in Section 2-1-3.

  • Page 11: Precautions

    THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA Interface. The UIF folder contains the source code of the THM1176 measurement software. • Modify the THM1176 measurement software, or write a measurement system from scratch, using the LabVIEW development system. Developing software for the handheld version requires the optional LabVIEW Mobile Module (LabVIEW 2011SP1 or earlier).
  • Page 12 THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA SPECIAL NOTICE FOR THE HANDHELD ⇒ Due to a bug in the VISA library, the PDA version of the THM1176 software cannot handle disconnecting the THM1176 while it is measuring. This has two...
  • Page 13 The disadvantages are that the sensor becomes thicker, and that it cannot be recalibrated. Because of this trade-off, Metrolab have decided to leave it to the customer to decide whether or not they want to use the ceramic plates.

  • Page 14: Notes

    Copyright © 2014 Metrolab Technology SA SPECIAL NOTICE FOR THE TFM1186 ⇒ Do not use the zero-offset correction feature with the TFM1186. In fact, the fluxgate sensor is so sensitive that most zero-gauss chambers are completely inadequate, and the zero-offset procedure will introduce a large offset error. If the zero-offset procedure is accidentally executed, the factory offset can be restored using the “:CAL:ZERO”...
  • Page 15 • Some PDA USB-Host adaptor cables may not have a power connector. Plug the AC adaptor into the DC-in connector on the PDA instead. • If you plug the THM1176/TFM1186 into the PDA before the PDA completes its initial boot procedure, you will see an “Unidentified USB Device” dialog.

  • Page 16: Using The Thm1176/Tfm1186

    The active field volume of the THM1176-LF and TFM1186 is much larger, on the order of several mm, but this is usually sufficient for weak fields.
  • Page 17 • User offset correction (not for TFM1186 – see Section 2-4!): To guarantee the specified accuracy, the measurement offset should be checked before each measurement sequence, using the zero-gauss chamber supplied.

  • Page 18: Interface

    THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA that the same correction will be applied the next time the instrument is powered up. • Readout options: The three field components are always acquired, but the readout can be limited to any selected components.

  • Page 19: Probe Mechanical Design

    (see below). However, the THM1176-HFC lacks all such protection; please note the special handling precautions in Section 2-4, Precautions. The TFM1186 sensor is relatively large and mechanically very robust. • Small gaps: The THM1176-MF, -HF and -LF probes are 10 mm thick.

  • Page 20: Desktop Kit

    The desktop kit includes everything except the computer: the THM1176/TFM1186 instrument, calibration, a zero-Gauss chamber (not for TFM1186 – see Section 2-4), the National Instruments VISA runtime library and USBTMC driver, turn-key measurement software, all the LabVIEW source code, software licenses from Metrolab as well as National Instruments, and this manual.

  • Page 21: Handheld Kit

    PC software. • Includes the entire desktop kit: You can choose to connect the THM1176/TFM1186 either to the PDA included in the handheld kit, or to a PC. In the second scenario, you can do everything you can do with the desktop kit.

  • Page 22: Calibration, Maintenance, Repair And Warrenty

    THM1176 family magnetometers will be calibrated. To avoid substantial extra charges, you should ship the unit back to Metrolab in order to coincide with one of these dates. Please see Section 7-10 for a list of these dates.
  • Page 23 To comply with the license associated with the LabVIEW Mobile Module, Metrolab distributes upgrades to the PDA software in an encoded file. You need to contact Metrolab for the password for this file. Please send an e- mail with your instrument’s serial number to contacts@metrolab.com. The serial number is printed on the label located on the instrument electronics.

  • Page 24: Using The Thm1176/Tfm1186

    USING THE THM1176/TFM1186 4- Software User Interface The THM1176/TFM1186 can be used as a laboratory instrument, plugged into a Personal Computer (PC), or, optionally, as a handheld instrument. The display of the handheld instrument will vary slightly from the illustrations below; however, the utilization is the same except when noted.
  • Page 25 THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA • MT: milli-Tesla (1T=10 • UT: micro-Tesla (1T=10 • NT: nano-Tesla (1T=10 • GAUSs: Gauss (1T=10 • KGAUss: kilo-Gauss (1T=10 kG) • MGAUss: milli-Gauss (1T=10 •...

  • Page 26: Plot Display

    THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA 4-2 PLOT DISPLAY PURPOSE: Graphical display of last measurements. CONTROLS: X, ?, k, [Data display selector]: See Section 4-1. B, Bx, By, Bz: Enables or disables display of corresponding data.
  • Page 27 THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA Zoom Out. o Zoom Out about Point: click a point to zoom out from. <Shift>: see above. o Zoom to Fit: auto-scale x and y- scales to show entire graph.

  • Page 28: File Display

    THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA 4-3 FILE DISPLAY PURPOSE: Record measurements to a file, and review recorded data. CONTROLS: X, ?, k: See Section 4-1. ["..." button]: Choose and/or create a Recording file.
  • Page 29 THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA The thermometer graphically displays the Start and Stop block numbers. You can move the thumbs. When recording, Stop displays the last block recorded. Recording is affected by settings in Setup page.

  • Page 30: Setup Display

    THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA 4-4 SETUP DISPLAY PURPOSE: Sets up all measurement parameters. CONTROLS: X, ?, k: See Section 4-1. Serial no.: Select active instrument. Range: Select range, or auto-ranging.

  • Page 31: Measure Setup Dialog

    THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA 4-5 MEASURE SETUP DIALOG PURPOSE: Set up measurement parameters. CONTROLS: Timer Period, Rate: Measurement acquisition rate: • Timed trigger: Specify desired period or rate. • Immediate trigger: Empirically determined acquisition rate is shown, and cannot be changed.
  • Page 32 THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA OK: Apply modifications and close dialog. DISPLAYS: Current parameter values when dialog is opened. NOTES: To enter parameter values on a PDA, press the blue keyboard button at the bottom of the screen to bring up the on- screen keyboard.

  • Page 33: Alarm Setup Dialog

    THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA 4-6 ALARM SETUP DIALOG PURPOSE: Set field limits for visual and/or audio alarms. CONTROLS: Audio: Enable or disable audio alarm. Raw/sDev/P-P: Each column provides the limits for the corresponding display: •...

  • Page 34: Bus Trigger Dialog

    THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA 4-7 BUS TRIGGER DIALOG PURPOSE: Generate triggers in Bus triggered mode. CONTROLS: Help: Open this help window. Cancel: Abort the trigger sequence and close the dialog.

  • Page 35: Programming The Thm1176/Tfm1186

    Both the LabVIEW API and User Interface (UIF) are included in source code format on the CD that came with your THM1176/TFM1186. If upgrades become available, you will be able to download them from the Metrolab website, download.metrolab.com.

  • Page 36: Average

    THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA This chaining serves two purposes: it forces the VIs to be executed in the given order, and it stops the execution of the chain if an error occurs. In fact, each VI checks whether its “Error in”...

  • Page 37: Calibration

    THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA 5-3 CALIBRATION Collects all functions dealing with the device calibration. Function [In]: Function to perform: INITiate: Initiate offset correction procedure in zero-gauss chamber ZERO: Restore factory offset...

  • Page 38: Enumerate

    THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA 5-5 ENUMERATE Enumerate the VISA resource names of the instruments currently connected. The resource names must be some pattern ("Prefix pattern"), followed by the instrument's serial number, followed by another pattern ("Postfix pattern").

  • Page 39: Format

    THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA 5-7 FORMAT Sets the output format for measurements, or gets the current setting. The output format can be text (“ASCii”), uncompressed binary (“INTeger”), or compressed binary ("PACKed1" or "PACKed2").

  • Page 40: Initialize

    THM1176/TFM1186. Reset [In]: Reset the instrument after opening a session to it. THM1176 [Out]: Instrument identified itself as THM1176/TFM1186. Only valid if ID Query is selected. THM1176 Description [Out]: Instrument description returned by *IDN command. Only valid when "ID Query" is selected.
  • Page 41 Reset; o Continuous trigger initiation; o Changing trigger parameters. Sleep [In]: If set, the THM1176/TFM1186 will switch off the analog power after executing the command. (The microcontroller also puts itself to sleep whenever it can, but this happens automatically.) The resulting power...

  • Page 42: Mmemory

    THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA 5-10 MMEMORY Read the instrument’s FLASH memory. What [In]: What to read: CATalog: a list of files stored in FLASH. DATA: the contents of the file chosen.

  • Page 43: Reset

    THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA 5-2 RESET Reset the instrument to startup settings: Averaging: 1 Acquisition buffer: empty Trigger source: Immediate Trigger count: 1 Trigger timer: 100 ms Range: Auto...

  • Page 44: Self-Test

    THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA 5-4 SELF-TEST Run instrument self-test. Note: the THM1176 family instruments currently do not support self-test. Self-test response [Out]: Response from *TST? self-test command. 5-5 SENSE Sets the measurement range, or gets the currently selected range.

  • Page 45: Status

    THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA 5-6 STATUS Collects all commands concerning the IEEE488.2 / SCPI status system in the THM116. See Section 6-3 for more details about the status registers.

  • Page 46: Straighten

    THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA 5-7 STRAIGHTEN Compensate measurements for possible angular misalignments of the sensor ICs. Bx in, By in, Bz in [In]: X, Y and Z components, respectively, of the measured field vector.

  • Page 47: Trigger

    THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA 5-8 TRIGGER Manages all functions of trigger system. Function [In]: Select function to be performed: Setup: set up the trigger system with the parameters given.

  • Page 48: Unit

    THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA 5-9 UNIT Sets the units in which measurements are returned, or queries the currently selected units. Note that units are only used if FORMat is Ascii and CALibration:STATe is On.

  • Page 49: Programming The Thm1176/Tfm1186

    You may, however, want to write a LabVIEW program optimized for your application, bypassing or complementing the general-purpose API provided by Metrolab. This chapter will provide you with the information necessary to do so.

  • Page 50: Scpi Instrument Model

    Systems Alliance, available from http://www.ivifoundation.org/Downloads/Specifications.htm. 6-2 SCPI INSTRUMENT MODEL The THM1176/TFM1186 complies with the Standard Commands for Programmable instruments (SCPI) standard. SCPI uses a standard instrument model to organize the command structure. The diagram below shows the SCPI Instrument Model SCPI Instrument Model subsystems concerning the signal flow.
  • Page 51 488.2 “Common Commands” (start with “*”) as well as SCPI commands. Many commands have additional options, or query forms to return the currently set value; see later sections for details. In addition to ASCII commands, the THM1176/TFM1186 also supports certain USBTMC-USB488 controls, also noted in this table. Functional...
  • Page 52 THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA Functional Command(s) Function Block :ABORt Abort triggers :TRIGger … Select trigger source and characteristics MEMory Not used Signal Not used Generation STATus *CLS Clear status...

  • Page 53: Ieee 488.2 / Scpi Status Registers

    Standard Event Status Register. SCPI adds the Operation Status Register, Questionable Status Register and Error/Event Queue. The diagram below, taken from the SCPI standard, provides a good summary. This section describes how the THM1176/TFM1186 uses these status registers. www.metrolab.com...
  • Page 54 THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA o Status Byte Contains a 1-byte status summary. The THM1176/TFM1186 uses the following bits: Bit Name Description Error AVailable (in Error/Event Queue) Questionable Summary Bit...
  • Page 55 Read-only register that is constantly updated to reflect the current state of the instrument. o Event Register Transitions in a Condition Register are latched in the corresponding Event Register. The THM1176/TFM1186 only latches transitions from 0 to 1. Event Registers are cleared when read. www.metrolab.com...

  • Page 56: Usbtmc-Usb488 Controls

    THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA o Event Enable Register A mask indicating what bits in the Event Register are included in the Summary bit. The enable mask of the Status Byte is called the Status Enable register, and it determines which bits cause an RQS (ReQuest for Service).

  • Page 57: Ieee 488.2 Common Commands

    THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA 6-5 IEEE 488.2 COMMON COMMANDS As any IEEE 488.2 compliant instrument, the THM1176 family supports the following commands. Command Name Description *CLS Clear status Clear all event registers and queues (not...
  • Page 58 THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA The abbreviated form of each command is written in capital letters. For example, the "MEASure" command can be written as "MEASURE" or "MEAS", or, since capitalization doesn't matter, "measure"...
  • Page 59 THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA Magnetic field strength M, U, N Tesla (default) MAHZP Megahertz proton GAUSS K, M Gauss Other M, U Seconds The following tables list the legal commands for the THM1176 family, in alphabetical order.
  • Page 60 THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA Command Parameters Description :DIAGnostic Initiate a firmware upgrade. :UPGRade The instrument will [:INITiate] disconnect from the USB bus and reconnect as a DFU (Device Firmware...
  • Page 61 THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA :TIMestamp? Fetch time stamp. Returns an 8-byte hexadecimal number, in ns. Note that the timer resolution is 167 ns. Fetch temperature. Returns :TEMPerature? unsigned integer between 0 and 64K, with arbitrary units.
  • Page 62 THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA Command Parameters Description :FORMat [:DATA]? [DEFault] Query data output format [:DATA] ASCii | INTeger | Set format for returned flux PACKed[,<length>] | density measurement data.
  • Page 63 THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA Command Parameters Description :INITiate [:IMMediate] Enable the trigger, where [:ALL] the trigger source, trigger count and trigger period are set with TRIGger commands Query continuous-trigger...
  • Page 64 THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA Command Parameters Description :MEASure Abort any pending triggers and perform measurements using the default acquisition parameters: - Immediate trigger - Continuous initiation off - Averaging count 1...
  • Page 65 THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA Command Parameters Description Read the FLASH memory :MMEMory Read the file directory. [:CATalog]? Returns: - Total bytes used - Total bytes available - File entries consisting of:...
  • Page 66 THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA Command Parameters Description :READ Abort pending triggers and perform a measurement with existing parameters. Note: cannot be used when TRIGger:SOURce is BUS. [:SCALar] Perform a single measurement.
  • Page 67 THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA Command Parameters Description :SENSe [:FLUX] [:RANGe] [:UPPer]? [MINimum | MAXimum | Query the current range DEFault] setting [:UPPer] THM1176-MF: Set the range. Select 0.1|0.3|1|3 T highest range by default.
  • Page 68 THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA Command Parameters Description :SYSTem :ERRor [:NEXT]? Query error queue :VERSion? Query SCPI version (e.g. 1999.0) :HELP :HEADers? List all available commands. :SYNTax? <command_header> List syntax for a command.
  • Page 69 THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA Command Parameters Description :TRIGger :COUNt? [MINimum | MAXimum | Query trigger count DEFault] :COUNt <value> | MINimum | Set the number of triggers MAXimum | DEFault required to complete an acquisition.

  • Page 70: Programming Hints

    Note that National Instruments' "Measurement & Automation Explorer" (part of the full NI-VISA package on Windows systems) provides a very useful tool to explore the command set. Select the THM1176/TFM1186 under "System / Peripherals & Interfaces / USB Devices," and click the "Open VISA Test Panel" icon. This opens a window from which you can try all functions available through NI-VISA.
  • Page 71 THM1176 is designed to have very low offset and offset drift, but as with any Hall device, these remain a significant source of error. Note that this does not apply to the TFM1186 – See Section 2-4. After an INITiate command with TRIGger:SOURce = BUS, the instrument expects TRIGger:COUNt triggers before resuming normal operation.
  • Page 72 THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA Be sure to check the status after every command. The Standard Event, OPERation and QUEStionable Status registers provide a general idea of what went wrong, and the status message on the Error/Event Queue (retrieved by SYSTem:ERRor?) provides a detailed diagnostic.

  • Page 73: Reference

    THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA REFERENCE 7- Technical Specifications 7-1 MEASUREMENT Ranges: - THM1176-MF: 100 mT, 300 mT, 1 T, 3 T - THM1176-HF: 100 mT, 500 mT, 3T, 20T (calibrated to 14.1 T) - THM1176-HFC: 100 mT, 500 mT, 3T, 20T (calibrated to 1.5 T)

  • Page 74: Interface

    Copyright © 2014 Metrolab Technology SA User offset correction: To be performed before each series of measurements, in Zero Gauss Chamber supplied Notes: Does not apply to TFM1186 – see Section 2-4. 7-2 INTERFACE Interface: USB 2.0, full speed (12 Mbps) Class / USB driver: USBTMC (USB Test &...

  • Page 75: Mechanical - Thm1176-Mf/Hf

    THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA 7-4 MECHANICAL – THM1176-MF/HF Dimensions: - Instrument electronics 76 x 22.5 x 14 mm - Probe with housing 113 x 16 x 10 mm - Probe without housing - Sensor package 16.5 mm...

  • Page 76: Mechanical - Thm1176-Hfc

    THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA 7-5 MECHANICAL – THM1176-HFC Dimensions: - Instrument electronics 76 x 22.5 x 14 mm - Probe: top view - Probe: side view - Probe: bottom view - Field sensitive point 150 µm x 150 µm x 10 µm...

  • Page 77: Mechanical - Thm1176-Lf

    THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA 7-6 MECHANICAL – THM1176-LF Dimensions: - Instrument electronics 76 x 22.5 x 14 mm - Probe with housing 113 x 16 x 10 mm - Field sensitive point 6 x 3.4 x 3 mm...

  • Page 78: Desktop Kit

    - AC adaptor/charger (100-240 VAC 50/60 Hz, 500 mA) with wall socket adaptor plugs for Europe, UK, USA, Australia - USB-Host adaptor cable to connect PDA to THM1176/TFM1186 - USB-Device adaptor cable to connect PDA to PC - Pre-installed acquisition software, with licenses from Metrolab,...

  • Page 79: Warranty, Calibration, Certification And Maintenance

    Four weeks in the year are fixed to perform batch calibrations: Week 10, Week 24, Week 37, Week 50 To benefit from the discounted pricing for this batch operation, you must ensure that your instrument arrives at Metrolab the week before. Certification CE approved...

  • Page 80: Reference

    Copyright © 2014 Metrolab Technology SA REFERENCE 8- THM1176-MF/HF/HFC Sensor Details This chapter is adapted from an article by Philip Keller of Metrolab in the June/July 2008 issue of Magnetics Business & Technology (http://www.MagneticsMagazine.com). To measure the total field, we need three orthogonally oriented Hall sensors.
  • Page 81 THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA But MAG3D contains much more than the Hall elements. To build a Hall magnetometer, we need to supply a current and measure a voltage. By increasing the current and/or amplifying the voltage, one can increase the sensitivity.
  • Page 82 THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA Hall effect, whose magnitude changes sign when the current direction is rotated by 90°. The combination of these techniques results in a sensor with significantly reduced offset, offset drift, and sensitivity to planar Hall effect.

  • Page 83: Reference

    “Command Reference”, provide a generic description of all possible error codes. In general, the codes are between -800 and 300. This chapter describes only the error codes produced by the THM1176/TFM1186, and the circumstances that might produce each error. In addition to the SCPI errors, the THM1176 Application Programming Interface might produce additional errors, in the range of -1073807360 to -1073807192 and 1073676290 to 1073676457 (0xBFFF00xx and 3FFF00xx –...

  • Page 84: Invalid Expression

    THM1176/TFM1186 User’s Manual v 1.3 r 1.2 – 04/14 Copyright © 2014 Metrolab Technology SA 9-2-6 -171: Invalid expression The parameters in the command contain an unmatched bracket. 9-3 -200: EXECUTION ERRORS 9-3-1 -221: Settings conflict Indicates that a legal program data element was parsed but could not be executed due to the current device state: •...

  • Page 85: Out Of Memory

    -400: Query error Generic query error: • Device being cleared when query was received. On the THM1176/TFM1186, no other conditions should generate this error. If this is not the case, please report to Metrolab the circumstances under which you received this error.

  • Page 86: Data Buffer Was Overrun

    • encountered something other than a Boolean or DEFault for a Boolean parameter; or • encountered an unknown parameter type. Please report to Metrolab the circumstances under which you received this error. 9-6-2 204: Data buffer was overrun In timed-trigger mode, data was lost because the read-out did not keep up with the acquisition.

This manual is also suitable for:

Thm1176-hfThm1176-mfThm1176-hfcThm1176-lf

Table of Contents