Condensation sensor
First Claim
1. A measuring device for detecting a humidity and temperature of a surface of a glass pane facing an interior of a vehicle, comprising:
- at least one humidity sensor and at least one temperature sensor jointly arranged on the surface of the glass pane;
an evaluation unit connected downstream of the humidity and temperature sensors; and
a signal converting and linking unit arranged between the humidity and temperature sensors and the evaluation unit.
1 Assignment
0 Petitions
Accused Products
Abstract
A measuring device for detecting a humidity and temperature of a surface of a glass pane facing an interior of a vehicle. The measuring device includes at least one humidity sensor and at least one temperature sensor jointly arranged on the surface of the glass pane, an evaluation unit connected downstream of the humidity and temperature sensors, and a signal conversion and linking unit arranged between the humidity and temperature sensors and the evaluation unit. Further, the converting and linking unit generates a rectangular wave-shaped signal having at least two different impulse lengths, each impulse length being a measure of a detected humidity and temperature.
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Citations
21 Claims
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1. A measuring device for detecting a humidity and temperature of a surface of a glass pane facing an interior of a vehicle, comprising:
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at least one humidity sensor and at least one temperature sensor jointly arranged on the surface of the glass pane;
an evaluation unit connected downstream of the humidity and temperature sensors; and
a signal converting and linking unit arranged between the humidity and temperature sensors and the evaluation unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for detecting a measuring signal to determine a temperature and humidity of a surface of a glass pane facing a passenger compartment, said method comprising:
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detecting the humidity of the surface of the glass pane using a humidity sensor;
detecting the temperature of the surface of the glass pane using a temperature sensor;
generating first and second signals respectively corresponding to the detected humidity and temperature using oscillators arranged downstream of the humidity and temperature sensors; and
converting and linking the first and second signals into a composite signal having a rectangular wave form. - View Dependent Claims (11, 12, 13)
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14. A measuring device, comprising:
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at least one humidity sensor configured to detect a humidity of a surface of a glass panel and to output a corresponding humidity measuring signal;
at least one temperature sensor configured to detect a temperature of the surface of the glass pane and to output a corresponding temperature measuring signal;
a combination unit configured to combine the humidity and temperature measuring signals into a combined signal; and
an evaluation unit configured to evaluate the combined signal to determine a current temperature and humidity of the surface of the glass pane. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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Specification