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9月4日星期三
Magnetoresistive sensor electronics applications
The
basic principle of the magnetoresistive sensor is due to reluctance
changes caused by the magnetic field change in resistance , thereby
causing the voltage to detect changes in the Earth magnetic field .
After years of development magnetoresistive sensor with reliable ,
durable , and many other features. Magnetoresistive sensor products are
often referred to as electronic compass or an electronic compass,
electronic applications magnetoresistive sensor range is already very
wide. Magnetoresistive sensor trends on the one hand is more precise, on
the one hand is the higher degree of integration . Reluctance
previously been used as a standalone device , but now the direction of
the integration , product integration is an important direction for
future development . Also contributed to the increase in mobile phone
features a magnetic sensor on the phone more and more widely ,
especially in the smart phone. In the smart phone system, the
magnetoresistive sensor MEMS sensors in combination with other
applications, the GPS navigation system to play a role more . In
addition, the magnetic Engine Coolant Temperature Sensor and the GPS sports watches and other
portable consumer market has developed rapidly in the future types of
applications in consumer electronics will be more features will be more
powerful. Automobile market in China has great growth , there are many
high-end cars using our electronic compass . Currently magnetoresistive
sensor in the main application field of automotive electronics , an
electronic compass is the rear-view mirror , the other is panel
dashboard . In this area, our market share is very high , such as in
BYD, and GM and other auto manufacturers are widely adopted. Alone as
the direction of the magnetic Position Sensor applications not previously been
considered of great value , while the GPS and other products contributed
to the emergence and popularity of magnetic sensor applications
development, because it is no longer a separate product , and GPS
bindings together into a powerful navigation products, while the GPS
market has been rapid growth in recent years . In addition to
traditional applications , networking and other technology development,
but also promoted the sensor technology in the new field of application .
Today, many transit systems have adopted the front end of the
magnetoresistive sensor system as a basis for networking sensing unit , I
believe it will be in the future there are things more applications
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