Company profile [Home]

ZHinstruments, founded in 1992, designs and manufactures specialised equipment for the measurement of magnetic susceptibility of rocks.

The company is based in Brno, Czech Republic and is owned and operated by Dipl. Ing. Zdenek Hulka, Ph.D. He has more than 30 years experience of the design and building sophisticated hardware and software systems in the geophysical field.

The list of his essential research goals is devoted to the design of geophysical - mainly rockmagnetic - instruments as follows:

    Portable Kappameter KT-M
  • 1974:  Spinner Magnetometer JR-4 (Geofyzika Brno, Czechoslovakia)

  • 1976:  Portable Kappameter KT-4 first model with digital signal processing (patented), sensitivity 1 x 10-5 SI units - (Geofyzika Brno, Czechoslovakia)

  • 1979:  Portable Kappameter KT-M sensitivity 1 x 10-5 SI units - (Geofyzika Brno, Czechoslovakia)


  • 1982:  Proton Magnetometer PM-1 new signal processing, additive white noise suppression when measuring the frequency of a weak fading sinusoidal signal - (Geofyzika Brno, Czechoslovakia)

  • 1992:  Resistar RS1000M / Multicable ME1000 (designed for Geofyzika Brno, Czech Republic)

    Susceptibility Meter SM-30
  • 1997:  Pocket Size Magnetic Susceptibility Meter SM-20 - sensitivity 1 x 10-6 SI uinits

  • 1998:  Pocket Size Magnetic Susceptibility Meter SM-30 - sensitivity 1 x 10-7 SI uinits









  • 1999 - 2002:  Participation in the EU project MAGPROX - the design of SM-400, the soil susceptibility meter for in situ measurement

    Susceptibility Meter SM-30
  • 2007:  Magnetic Susceptibility Meter SM-100 for magnetic susceptibility measurement of rock samples or fragments using measuring coil with homogeneous field. The sensor is being designed to allow operating frequency and field intensity to set in several steps (switchable frequencies and strength of the field).

  • 2007:  Magnetic Susceptibility Meter SM-105 for magnetic susceptibility measurement of rock samples or fragments using measuring coil with homogeneous field. The sensor is being designed to allow operating frequency and field intensity to set in several steps (switchable frequencies and strength of the field).











If you have any questions relating to ZH Instruments products, or their application to a specific problem, then please do not hesitate to contact us either by e-mail or phone.

Copyright © 2008 ZHinstruments. All rights reserved.