Title:
【発明の名称】表面上の液膜に応じて信号を発生させる方法及び装置
Document Type and Number:
Japanese Patent JP2001516043
Kind Code:
A
Abstract:
In order to determine the thickness of a water film on a surface, especially on a street, a portion of the water film is heated or cooled and the thickness of the water film is determined from the march of temperature during heating or cooling. A generated output signal is used to determine a range from many possible ranges in which the thickness of the water film lies. A Peltier element (1) is used for heating the water film. The temperature of the water film is measured by a thermoelement (5) and is evaluated by a microprocessor (8).
Inventors:
Bosshunk, Marcel Jr.
Bornant, Etienne
Bornant, Etienne
Application Number:
JP2000511035A
Publication Date:
September 25, 2001
Filing Date:
September 09, 1998
Export Citation:
Assignee:
Boshunk Mechatronic AG
International Classes:
G01B21/08; G01N25/00; G08B19/02; G01K3/10; (IPC1-7): G01B21/08; G01K3/10; G01N25/00
Attorney, Agent or Firm:
Takehiko Suzue (4 outside)