SE9704373L - Method and device for freezing point measurement - Google Patents

Method and device for freezing point measurement

Info

Publication number
SE9704373L
SE9704373L SE9704373A SE9704373A SE9704373L SE 9704373 L SE9704373 L SE 9704373L SE 9704373 A SE9704373 A SE 9704373A SE 9704373 A SE9704373 A SE 9704373A SE 9704373 L SE9704373 L SE 9704373L
Authority
SE
Sweden
Prior art keywords
sample
liquid
freezing point
ice
container
Prior art date
Application number
SE9704373A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9704373D0 (en
SE511075C2 (en
Inventor
Billy Backman
Original Assignee
Enator Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Enator Ab filed Critical Enator Ab
Priority to SE9704373A priority Critical patent/SE511075C2/en
Publication of SE9704373D0 publication Critical patent/SE9704373D0/en
Priority to PCT/SE1998/002144 priority patent/WO1999031492A1/en
Priority to AU15151/99A priority patent/AU1515199A/en
Publication of SE9704373L publication Critical patent/SE9704373L/en
Publication of SE511075C2 publication Critical patent/SE511075C2/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/02—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering
    • G01N25/04—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering of melting point; of freezing point; of softening point

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

A method and a device for measurement of the freezing point, whereby a cooling device (10) and a heating device (11) are provided in a measuring assembly (18) for repeated cooling down and heating, respectively, of a sample of liquid from a road surface to ice and warmed up again to liquid, and measuring means are provided for continual measuring of the temperature of the sample, so that the sample's freezing point can be determined by registration of the temperature change. A container (13) is provided on a vehicle for collection of a sample of liquid from the road surface. The cooling device (10) and heating device (11) are operatively connected to a control device (14) for repeated cooling of the sample of liquid to ice and warming of the ice to liquid form, and for continual measurement of the sample temperature, and the container (13) comprises dispensing means (15) to automatically empty the container (13) upon completed determination of the sample's freezing point.
SE9704373A 1997-11-27 1997-11-27 Method and device for freezing point measurement SE511075C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9704373A SE511075C2 (en) 1997-11-27 1997-11-27 Method and device for freezing point measurement
PCT/SE1998/002144 WO1999031492A1 (en) 1997-11-27 1998-11-27 Method and device for determining the freezing point
AU15151/99A AU1515199A (en) 1997-11-27 1998-11-27 Method and device for determining the freezing point

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9704373A SE511075C2 (en) 1997-11-27 1997-11-27 Method and device for freezing point measurement

Publications (3)

Publication Number Publication Date
SE9704373D0 SE9704373D0 (en) 1997-11-27
SE9704373L true SE9704373L (en) 1999-05-28
SE511075C2 SE511075C2 (en) 1999-08-02

Family

ID=20409152

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9704373A SE511075C2 (en) 1997-11-27 1997-11-27 Method and device for freezing point measurement

Country Status (3)

Country Link
AU (1) AU1515199A (en)
SE (1) SE511075C2 (en)
WO (1) WO1999031492A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6695469B2 (en) 2001-11-19 2004-02-24 Energy Absorption Systems, Inc. Roadway freezing point monitoring system and method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4383770A (en) * 1981-07-09 1983-05-17 Boschung Mecatronic Ag Apparatus for determining the freezing point of a liquid on or from a road surface
SE464595B (en) * 1988-09-29 1991-05-13 Ffv Aerotech Ab SET A PELTIER ELEMENT WITH TWO SURFACES TO DETERMINE THE ONE OR BAD SURFACE TEMPERATURE

Also Published As

Publication number Publication date
SE9704373D0 (en) 1997-11-27
AU1515199A (en) 1999-07-05
WO1999031492A1 (en) 1999-06-24
SE511075C2 (en) 1999-08-02

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