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Three-axis Hall Magnetometer THM1176Offer single point hall

The only handheld 3-axis Hall magnetometer

THM1176The THM1176 family combines the performance of a professional instrument with the usability of a consumer USB device.

Its range goes from the µT to 20 T, DC to 1 kHz, with ±1% accuracy. It simultaneously measures all three axes of the magnetic field, so you get a true field strength reading no matter how you hold the probe. The entire instrument has been reduced to a cable with a few fat spots, which can plug directly into your PC or into a battery-powered handheld computer.

The result is the most compact, lightweight, low-power, go-anywhere and measure-anything Hall magnetometer in the world.

The THM1176 family

THM1176-HF for high fields

With ranges of 0.1, 0.5, 3 and 20 T, precision of up to 0.3 mT and ±1% accuracy, the THM1176-HF is an excellent general-purpose magnetometer for medium to strong fields. Its revolutionary single-chip 3-axis Hall sensor measures 16.5x5.0x2.3 mm, with an active volume of only 150x150x10 µm, enabling 3-axis field measurements in small gaps and with strong gradients. Finally, spinning-current techniques minimize offset as well as the Planar Hall Effect.

 

 

 THM1176 Probes

THM1176-HFC for high fields / compact

Featuring the same specifications as the THM1176-HF, but with a probe measuring only 0.5x2x42 mm, the THM1176-HFC enables 3-axis measurements where they were formerly impossible - for example between the rotor and stator of large rotating machinery. How much do you trust your computational model? Now you can measure it!

THM1176-LF for low fields

With an 8 mT range, ±20 µT accuracy, ±2 µT resolution and an active volume of 6x3.4x3 mm, the THM1176-LF is ideal for measuring environmental disturbances involving weak magnetic fields.

Desktop, Handheld and Duo Kits

THM1176 PC vs PDAIf you just want to plug the THM1176 into the USB port of your computer, you need the Desktop Kit. The Handheld Kit, with its optional battery-operated handheld computer, takes the measurement from the lab bench to the field - although of course you can still use the instrument with your computer, too. If you need a single compact kit that can measure anything from µT to T, the Duo Kit includes both the THM1176-HF and THM1176-LF.

THM1176 Duo KitAll kits include a zero gauss chamber and a CD with the manual, software for Windows and Mac, and all LabVIEW source code. The handheld kits include a carrying case with the handheld computer, charger, adapters and cables.

The computer interface complies with the USB, USBTMC/USB488, DFU, SCPI and VISA standards, and is compatible with Windows, Macintosh and Linux based computers.

Born to map

Its 3-axis capability, compact form factor, small active volume and simple programmability make the THM1176 the ideal magnetometer for field mapping. This applies to manual marking of the "5 Gauss line" as well as the systematic mapping of an entire volume with a sophisticated 3-axis field-mapping jig. Last but not least, it is now - for the first time - practical to build arrays of Hall sensors, simply by plugging a series of THM1176s into a USB hub. THM1176 Probe ArrayThe extra cost of multiple sensors is often more than offset by the reduced mechanical complexity of the jig. Other important benefits include faster scanning, better positioning precision, and better reproducibility.

Details, details, details...

Attention to detail ensures that you get accurate measurements with a minimum of fuss. Auto ranging automatically selects the range you need, and auto temperature compensation minimizes the effect of temperature fluctuations. Different trigger modes are designed to support signal averaging, AC measurements, or synchronization with external events. Results can be displayed in T, mT, µT, kG, G, mG or the equivalent NMR resonant frequency. The zero offset can be easily determined with the zero-gauss chamber included, and is stored in flash memory. The firmware can be upgraded by the user. Even the signal cable between the sensor and the electronics is specially designed to minimize induction effects.

Download data sheets, manuals, software and price list

 

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Typical applications

  • Quick magnetic field checks
  • Three-axis measurements
  • Field monitoring

Advantages

  • Compact, lightweight, low-power, rugged and easy to use
  • Simultaneously measures all three axes of magnetic field
  • Range from µT to 20 T
  • Corrected for temperature drift and non-linearity
  • Use as computer peripheral or handheld instrument
  • Allows construction of probe arrays
  • All software source code included

Constraints

  • Hall: offset, drift, ...
  • Calibrated to only 3 T (normally)
  • DC to 1kHz
  • ±1% accuracy

What happened to the THM7025?

The predecessor of the THM1176, the Three-axis Hall Magnetometer THM7025, also known as the ETM-1, is no longer in production. Of course we continue to support and calibrate this instrument, and manuals and software continue to be available for download.