An Instrument for determination of Dielectric Constant,

Density and Liquid Water content of SNOW

Features:

- Sensor: Optimized Quarter Wave Resonator

- On Air Resonant Frequency: 1.6 GHz.

- Quality Factor (on Air): 219.6

- Dielectric Constant measur. range: Epsilon' 1.04 ÷ 3.65 ,Epsilon'' 0 ÷ 0.5

- Power requirement: 24V. D.C. with rechargeable battery inside (5A/h)

- Autonomy in battery- operation mode: 8 h.

- Total Weight: 4.5 Kg.

The Instrument (First prototype version)	The Sensor

 

The New small version

Instrumet & Sensor Project and Realization by: R.Ruisi @I.F.A.C. -C.N.R. Florence - Italy

Sensor Mechanical Construction by : Officine Pasquali - Florence , Italy

[ REFERENCE: J.R.Kendra , F.T. Ulaby,K.Sarabandi "Snow probe for in situ determination of wetness and density" IEEE Trans. Geosci. Remote Sensing Vol 32 N.6 pp. 1152-1159, 1994 ]