Title:
PRECIPITATION GAUGE
Document Type and Number:
WIPO Patent Application WO/2014/104291
Kind Code:
A1
Abstract:
An omnidirectional precipitation gauge is provided capable of measuring the direction and angle of inclination from which precipitation particles (rain and snow) fell. An omnidirectional precipitation gauge has a water receiving unit to receive precipitation particles (rain and snow) and a measuring unit to measure the volume of precipitation particles (rain and snow) received by the water receiving unit. The water receiving unit has a first water receiving receptacle that forms a conical funnel and for which the circular opening of the funnel faces toward zenith, and a plurality of n second water receiving receptacles that correspond to the number of divisions on a side face when equally dividing the circumference of the circular opening of the first water receiving receptacle into n divisions. The measuring unit measures the volume of water received (Pm) by the first water receiving receptacle and the volume of water received (Ps1 - Psn) in each of the plurality of n second water receiving receptacles, and determines the direction (α) from which the precipitation particles fell from the ratio of the volume of water received (Ps1 - Psn) in each of the plurality of n second water receiving receptacles and determines the angle of inclination (β) from zenith from which the precipitation particles fell from the ratio of the measured volume of water received (Pm) by the first water receiving receptacle and the total volume of water received (Ps1 - Psn) in the plurality of n second water receiving receptacles.
Inventors:
MATSUDA MASUYOSHI (JP)
Application Number:
PCT/JP2013/085092
Publication Date:
July 03, 2014
Filing Date:
December 27, 2013
Export Citation:
Assignee:
MTS INST INC (JP)
International Classes:
G01W1/14
Domestic Patent References:
| WO2009072300A1 | 2009-06-11 |
Foreign References:
| JP2006017462A | 2006-01-19 | |||
| US5918278A | 1999-06-29 | |||
| DE10303576A1 | 2005-01-05 | |||
| DE606170C | 1934-11-26 |
Attorney, Agent or Firm:
DOI, Kenji et al. (JP)
Kenji Doi (JP)
Kenji Doi (JP)
Download PDF: