Since the establishment, we have been taking part in several well-logging, geophysical and well testing works, like Boda Claystone Formation, works involving mine (MÉV) closure and remediation, projects in the disposal of low- and intermediate-level radioactive waste in Bátaapáti, well testing in Hungary and in the neighbouring countries.
During the 15 years, KAROTÁZS Ltd. has achieved an important position in the practice of Hungarian borehole, and well-logging metrology. For maintaining a high quality in our work, we use quality operating systems, improve our equipment supplied by our own and external resources.
Beside the daily routine work, we managed to win several competitions successfully, and we have developed new measuring equipment and techniques. R&D activity is still a running programme in the life of our Company.
Our developed products can be pucheased from the Ltd. In case of special needs, we undertake to modify our technolgies for able to be applied in solving various problems.
|»Temperature range:||0-80 °C|
|»Max. pressure:||200 MPa|
|»Power supply:||35-58 V/100 mA|
|»Detector:||GO, NaI scintillator and R980-1 (Hamamatsu) PMT tube|
|»ADC resolution:||12 bit|
The developed measuring technology and process (with some modification) is able to be used for gamma-spectrum measurements in other cases as well.
Our NPCLOG equipment is a universal PC-based surface recording unit, which (contrary to earlier practice) was constructed using exclusively own developments like task oriented motherboard, boards for measuring, data acquisition. The measuring and processing software is also self-created.
Properties of the equipment:
|»Temperature range:||0-50 °C|
|»Power supply:||=12 V, ~230 V|
|»Communication with PC:||USB2|
|»Required cable:||Armoured mining cable, with 4 conductors|
|»Maximum cable lenght:||2500 m|
The NPCLOG is able to function with amuplex, acoustic and resistivity probes, and impedance measuring unit.
PC programmable properties>of the equipments:
current or voltage measurement
detection with digital lock-in amplifier in all channels
|»setup of measuring system:||modular, measuring with 8 – 256 channels|
|»measuring range:||1 Ohm – 100 MOhm, 0 – 90 degree|
|»system accuracy:||better then 0,01 %, +/-0,01 degree|
|»frequency range of measuring signal:||0,02 Hz – 90 kHz|
|»outgoing current range:||1 mA – 1000 mA|
|»outgoing voltage range:||1 mV – 100 V|
The potential applications of the system: FFT spectrum measurement, impedance measurement (EIT), impedance spectrum measurement (EIS). With the measurement system it is possible to measure in two points with multiple frequencies or at a constant frequency in many points.
FFT spectrum measurement for the analysis of nonlinearity and intermodulation of environmental noise or measured material
electrical impedance tomography (EIT): non-invasive 2D, 3D, 4D imaging technique, which is used for technical engineering in several occurrences
electrical impedance spectroscopy (EIS): non-invasive spectroscopy technique, that provides the possibility for measurement sample and/or process characterization by recording the impedance spectrum
with using lock-in technique and modification of input channels, the system is able to be used for acoustic and magnetic impedance measurement
For further information please visit our homepage: www.karotazs.hu