agrophysics - Instytut Agrofizyki im. Bohdana Dobrzańskiego PAN w ...

Equipment
ZVCE type vector network analyser, 20 kHz - 8 GHz, 3 channels, TDR, passive set of calibrators, N-type connectors,
manufacturer: Rohde & Schwarz (2001)
Measured values: phase shift and amplitude attenuation of sinusoidal signals
passing through or reflected by examined objects.
Examples of use:
• Examination of the dielectric properties of agricultural materials and products,
determination of complex permittivity of porous materials, development of
quality indexes for homogeneous materials, development of FDR and TDR die
lectric sensors.
• Quality testing of agricultural materials and products.
HP 54120B wide-band sampling oscilloscope with
a 4-channel sampling module and the HP 54121A picosecond
pulse generator; DC frequency range: 21 GHz,
SMA connectors, GPIB interface, manufacturer: Hewlett
Packard (1995)
SAS-601B wide-band sampling oscilloscope;
DC frequency range: 12.4 GHz, SMA connectors,
manufacturer: Iwatsu (1994)
• Measured values: reflectometric and transmission analysis of delay and attenuation of pulses of tested objects.
Examples of use:
• Measurement of moisture content and salinity of porous materials using TDR (time domain reflectometry) and TDT (time
domain transmission).
• Development of sensor for the measurement of moisture content and salinity of soils and other porous materials.
LCR E4980A precise meter, with optional measurement of permittivity of solids; operating range: 20 Hz - 3 MHz,
manufacturer: Agilent (2009)
• Measured values: precise measurement of lumped R, L and C parameters of examined objects; complex impedance.
Examples of use:
• Electrical characteristics of solids and liquids, measurement of dielectric
permittivity of porous materials, validation of sensor models of non-electrical
quantities.
• Determination of quality indexes of agricultural and food products, calibration
of measurement devices.
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