| 摘要 |
PURPOSE: A temperature compensation type concentration sensor for snow-removing solution is provided to obtain a device at low costs without a complex data converting process by displaying concentration converted based on a conversion table and compensation data. CONSTITUTION: A temperature compensation type concentration sensor(10) for a snow-removing solution comprises a conductivity controller(11), a temperature sensor(12), a conversion controller(15), and a display(16). The conductivity controller measures the conductivity of the snow-removing solution in which a snow-removing agent is dissolved in water. The temperature sensor measures the temperature of the snow-removing solution. The conversion controller receives the conductivity and temperature measured by the conductivity controller and temperature sensor respectively. Specific concentration corresponding to the received conductivity is set by referring to a conversion table(14) in which the concentration corresponds to the conductivity and the information is saved in advance. The conversion controller selects the temperature-compensated concentration by referring to compensation data(13) in which a conductivity change by the temperature is corresponded to the specific concentration and saved in advance, thereby outputting the same. [Reference numerals] (11) Conductivity controller; (12) Temperature sensor; (13) Compensation data; (14) Conversion table; (15) Concentration/temperature conversion controller; (16) Display
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