Device for measuring the temperature of water covering a road surface

• US 8,864,372 B2
• Filed: 03/11/2011
• Issued: 10/21/2014
• Est. Priority Date: 03/16/2010
• Status: Expired due to Fees

• Current Assignee: Compagnie Generale DES Etablissements Michelin SCA
• Original Assignee: Compagnie Generale DES Etablissements Michelin SCA, Michelin Recherche et Technique SA (Compagnie Generale DES Etablissements Michelin SCA)
• Inventors: Buisson, Jeremy
• Primary Examiner(s): Jagan, Mirellys
• Application Number:
  US13/046,227
• Publication Number:
  US 20110228813A1
• Time in Patent Office: 1,320 Days
• Field of Search: 374/141, 374/208, 374/163
• US Class Current: 374/141
• CPC Class Codes: G01K 13/00 Thermometers specially adapted for specific purposes
• CPC Class Codes: G01K 13/02 for measuring temperature of moving fluids or granular materials capable of flow
• CPC Class Codes: G01K 13/12 combined with sampling devices for measuring temperatures of samples of materials
• CPC Class Codes: G01K 7/02 using thermoelectric elements, e.g. thermocouples

Abstract

A device for measuring the temperature of water covering a road surface includes a member for measuring water temperature and channelling means for channelling the water covering the road surface. The channelling means includes a measuring chamber for measuring the temperature of the water covering the road surface. The measuring member includes a temperature measuring head situated in the measuring chamber. The device also includes driving means for driving the device over the road surface, the means being arranged in such a way that the temperature measuring head is situated at some distance from the road surface.

Claims

1. A test vehicle for measuring conditions on a road surface covered with water, the test vehicle comprising:

a sprinkler for sprinkling the road surface with water taken from aboard the test vehicle;

a temperature measurement device; and

a tire to be tested, the tire being positioned downstream from the sprinkler and upstream of the temperature measurement device when considering a direction of travel of the test vehicle,

wherein, when the test vehicle is running, the tire drives over sprinkled water from the sprinkler, and the temperature measurement device measures a water temperature of the sprinkled water over which the tire has driven, and

wherein the temperature measurement device includes;

a measurement member for measuring water temperature,

a channelling unit, which directly channels water covering the road surface, the channelling unit including a measuring chamber for measuring a temperature of the channelled water, and the measurement member including a temperature measuring head situated in the measuring chamber, and

a driving unit, which causes the measurement member and the channelling unit to be driven over the road surface in such a way that the temperature measuring head is situated at a distance from the road surface.

2. The test vehicle according to claim 1, further comprising a suspension unit, which suspends the temperature measurement device with respect to the test vehicle.

3. The test vehicle according to claim 1, further comprising a water storage unit that includes a cold source and a hot source, wherein water from the cold source has a lower temperature than water from the hot source.

4. The test vehicle according to claim 3, further comprising a mixer, which mixes the water from the cold source and the water from the hot source.