Crank position sensor is usually installed in the distributor, the control system is the most important one of the sensors. Its role is: detecting the engine speed, so-called rotation speed sensor; detects the piston top dead center position, it is also known as the only point sensor, including the detection of each cylinder for controlling the ignition TDC signal for controlling sequential spray oil first cylinder TDC signal
2013年10月13日星期日
Temperature and humidity sensors to create a comfortable living environment perception
China South geographical differences, climate variability, usually urban residents are installed according to the season air conditioners, humidifiers and other equipment, office space in major cities is not uncommon, where temperature and humidity sensor is an integral part of the HVAC . Users usually in the living room watching TV, outside sky darkens, the wireless light sensor found in indoor light intensity drops below the threshold, according to the user's settings will automatically open the living room ceiling, and adjust the brightness of the dome light, so that light intensity indoors been maintained in a soft not to hurt the eye level. Summer and winter seasons, when it will always monitor the temperature and Cooling Temperature Sensor indoor temperature and humidity index, and linkage HVAC, humidifiers and other equipment, the indoor temperature and humidity maintained in a good range, if living in large cities, air quality there is a problem, the air quality sensor is equipped with a radio, with air purifier, so that the user in the room, it does not receive air pollution problems.
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