| 摘要 |
#CMT# #/CMT# The method involves arranging a valve in vicinity of the measuring surface. A heating element (5b) is coupled thermally to the measuring surface and is supplied with required voltage. A thermally isolated temperature sensor (5a) measures the temperature of the heating element. The measured temperature of the heating element and ambient temperature are compared to determine whether the water, snow or ice containing medium exists in measuring surface. #CMT# : #/CMT# An independent claim is included for a device for detecting water, snow or ice containing medium in measuring surface. #CMT#USE : #/CMT# Method for detecting water, snow or ice containing medium in measuring surface of target area such as underground car parking entrance, gutter, stairs in public-transport station, etc. #CMT#ADVANTAGE : #/CMT# The water, snow or ice containing medium in measuring surface is detected precisely and safely, so that the accident and damage of building and other facilities are avoided. Manufacturing cost of detection device is reduced. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a block diagram of the device for detecting water, snow or ice containing medium in measuring surface. (Drawing includes non-English language text) 2 : Transceiver 3 : Microcontroller 4a : Negative temperature coefficient resistor 5a : Temperature sensor 5b : Heating element. |
