Title:
イオン検出装置、空調機器及びイオン計測器
Document Type and Number:
Japanese Patent JP4979798
Kind Code:
B2
Abstract:
Provided is an ion detection device that is able to use a simple means to avoid malfunctioning under high humidity conditions. A collection electrode (9) that collects ions from the air is provided to a surface (8a) of a substrate (8), a measurement unit (11) that measures the electric potential of the collection electrode (9) is provided to another surface (8b) of the substrate (8) and a resistor (10) (heater) that generates heat using the passage of an electric current is mounted on the other surface (8b) of the substrate (8) to increase the temperature of the measurement unit (11). Under high humidity environmental conditions, if the charge due to the ions accumulated by the collecting electrode (9) passes through high current-voltage conversion resistance provided to the measuring unit (11) and the electric potential of the collecting electrode (9) is measured, by increasing the temperature of the measurement unit (11), a layer of water that occurs on the surface of the current-voltage conversion resistor evaporates, the relative humidity falls and the occurrence of a layer of water on the surface of the resistor is inhibited, so leak current can be minimised, a fall in resistance value can be curbed and an accurate ion content can be calculated on the basis of the electric potential of the collection electrode (9).
Inventors:
Hirofumi Matsui
Application Number:
JP2010188621A
Publication Date:
July 18, 2012
Filing Date:
August 25, 2010
Export Citation:
Assignee:
Sharp Corporation
International Classes:
G01N27/60; G01N27/626
Domestic Patent References:
| JP2003139361A | ||||
| JP2005017285A | ||||
| JP2004093361A | ||||
| JP2006340740A | ||||
| JP2008306084A | ||||
| JP2007114177A | ||||
| JP2010145970A |
Attorney, Agent or Firm:
Nobuo Kono
Hideno Kono
Hideno Kono