FR2446473A1 - Dispenser applying ice-melting chemical to road surface - measures electrical resistivity of soln. on road surface to determine rate of application - Google Patents

Dispenser applying ice-melting chemical to road surface - measures electrical resistivity of soln. on road surface to determine rate of application

Info

Publication number
FR2446473A1
FR2446473A1 FR7900921A FR7900921A FR2446473A1 FR 2446473 A1 FR2446473 A1 FR 2446473A1 FR 7900921 A FR7900921 A FR 7900921A FR 7900921 A FR7900921 A FR 7900921A FR 2446473 A1 FR2446473 A1 FR 2446473A1
Authority
FR
France
Prior art keywords
road surface
ice
application
soln
electrical resistivity
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7900921A
Other languages
French (fr)
Other versions
FR2446473B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Solvay SA
Original Assignee
Solvay SA
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 Solvay SA filed Critical Solvay SA
Priority to FR7900921A priority Critical patent/FR2446473A1/en
Priority to CA329,155A priority patent/CA1133989A/en
Priority to EP79200304A priority patent/EP0006272B1/en
Priority to DE7979200304T priority patent/DE2961758D1/en
Priority to AT79200304T priority patent/ATE548T1/en
Priority to US06/049,157 priority patent/US4259640A/en
Priority to FI791970A priority patent/FI71382C/en
Priority to DK257379A priority patent/DK154515C/en
Priority to ES481702A priority patent/ES481702A1/en
Priority to NO792049A priority patent/NO148726C/en
Publication of FR2446473A1 publication Critical patent/FR2446473A1/en
Application granted granted Critical
Publication of FR2446473B1 publication Critical patent/FR2446473B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
    • G01N27/07—Construction of measuring vessels; Electrodes therefor

Abstract

The vehicle attachment applying an ice-melting compound to frozen roads, comprises a sleeve into which controlled quantities of water can be dispensed. The sleeve is in contact with the road, and includes two electrodes near its lower edge. The electrodes, formed of a corrosion-resistant metal, are connected to a resistance measuring bridge. According to the resistance between the electrodes the concn. of ice-melting compound on the road surface can be ascertained. The device enables the rate of application of ice-melting chemical to a frozen road to be measured in order to determine whether the correct dosage is being applied.
FR7900921A 1978-06-21 1979-01-12 Dispenser applying ice-melting chemical to road surface - measures electrical resistivity of soln. on road surface to determine rate of application Granted FR2446473A1 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
FR7900921A FR2446473A1 (en) 1979-01-12 1979-01-12 Dispenser applying ice-melting chemical to road surface - measures electrical resistivity of soln. on road surface to determine rate of application
CA329,155A CA1133989A (en) 1978-06-21 1979-06-05 Method and device for laying a chemical cutback on a roadway
DE7979200304T DE2961758D1 (en) 1978-06-21 1979-06-13 Method and apparatus for controlling the dose of a chemical melt on a road
AT79200304T ATE548T1 (en) 1978-06-21 1979-06-13 METHOD AND DEVICE FOR CONTROLLING THE DOSAGE OF A METAL CHEMICAL ADDITIVE ON A LINE.
EP79200304A EP0006272B1 (en) 1978-06-21 1979-06-13 Method and apparatus for controlling the dose of a chemical melt on a road
US06/049,157 US4259640A (en) 1978-06-21 1979-06-18 Process and device for determining a chemical deicer on a road
FI791970A FI71382C (en) 1978-06-21 1979-06-20 REFERENCE TO A DOCUMENT ATTACHING A CHEMICAL SMAELTMATERIAL PAO VAEG
DK257379A DK154515C (en) 1978-06-21 1979-06-20 PROCEDURE AND APPARATUS FOR DOSED APPLICATION OF A LUBRICANT ON A ROAD ROAD
ES481702A ES481702A1 (en) 1978-06-21 1979-06-20 Method and apparatus for controlling the dose of a chemical melt on a road.
NO792049A NO148726C (en) 1978-06-21 1979-06-20 PROCEDURE AND APPARATUS FOR AA DETERMINE THE QUANTITY OF A CHEMICAL DEPOSITOR ON A ROADWAY

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7900921A FR2446473A1 (en) 1979-01-12 1979-01-12 Dispenser applying ice-melting chemical to road surface - measures electrical resistivity of soln. on road surface to determine rate of application

Publications (2)

Publication Number Publication Date
FR2446473A1 true FR2446473A1 (en) 1980-08-08
FR2446473B1 FR2446473B1 (en) 1981-01-30

Family

ID=9220770

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7900921A Granted FR2446473A1 (en) 1978-06-21 1979-01-12 Dispenser applying ice-melting chemical to road surface - measures electrical resistivity of soln. on road surface to determine rate of application

Country Status (1)

Country Link
FR (1) FR2446473A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2061899A5 (en) * 1969-10-01 1971-06-25 France Etat
FR2368707A1 (en) * 1976-10-22 1978-05-19 Midi Salines Est Cie Salins Determn. of chloride ions in a road surface esp. after salting - by measuring colour change of silver (di)chromate gel with starch and silica when this is spread on the surface

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2061899A5 (en) * 1969-10-01 1971-06-25 France Etat
FR2368707A1 (en) * 1976-10-22 1978-05-19 Midi Salines Est Cie Salins Determn. of chloride ions in a road surface esp. after salting - by measuring colour change of silver (di)chromate gel with starch and silica when this is spread on the surface

Also Published As

Publication number Publication date
FR2446473B1 (en) 1981-01-30

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Legal Events

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