Special Developments


  • Multiple constant current source for focussing resistivity arrays
  • Tunable filter for ultrasonic dispersion studies
  • Leakage detection system for a brine channel
  • Borehole earth resistivity module
  • Seismometer modifications
  • Low drop voltage regulator
  • Prototype of a capacitive impedance meter for ice cores

According to your needs and together with you we develop customised concepts and solutions and take on the technical implementation. In case of special requests please call us, use Skype (erich.lippmann) or send an email to lippmann@l-gm.de.


  • Contact impedance of grounded and capacitive electrodes. (Hoerdt A et al., 2013) (more...)