The role of the crankshaft position sensor is to determine the position of the crankshaft, the crankshaft angle is. It is usually with the camshaft position sensor to work together - to determine the basic ignition timing
Engine Coolant Temperature Sensor
2013年9月25日星期三
Piezoresistive acceleration sensor is a widely used alternative DC response accelerometers
Piezoresistive acceleration sensor is a widely used alternative DC response accelerometers . Unlike capacitive acceleration sensor measuring acceleration by the change in capacitance , piezoresistive strain gauge type acceleration sensor value changes by the output acceleration signal , the strain resistance of the sensor inertial sensing system. Many engineers are familiar with strain gages , and know how to measure its output. Most of the piezoresistive sensors sensitive to temperature change , which requires its output signal is inside or outside the sensor for temperature compensation . Modern piezoresistive type acceleration sensor contains a specific integrated circuit to make the signal processing of the plate , but also contains temperature compensation. Piezoresistive accelerometer operating frequency up to 5000Hz. Many piezoresistive accelerometer or the use of air damping (MEMS -based ) , or using liquid damper ( paste type strain gauge ) . Damping characteristics are an important factor in selecting a sensor . Some applications , the input mechanical vibration frequency components included ( or excitation frequency response ) , with damping of the sensor itself can be prevented from ringing ( resonance ) , so as to preserve or increase the available dynamic range. Since the output of the piezoresistive acceleration sensor is purely resistive differential information is usually very good signal to noise ratio ; its dynamic range is only limited by the quality of the DC amplifier followed . For high acceleration shock test , some of the piezoresistive type acceleration sensor capable of measuring the acceleration beyond 10000g . Since a wide frequency response. Piezoresistive acceleration sensor suitable pulses crash test , in these tests are usually very high frequency and acceleration . Having a Engine Temp Sensor responsive to current through its acceleration output , the user can obtain no integration of velocity and displacement error information . Piezoresistive accelerometer typically used in automotive safety testing , weapons testing , seismic testing. Acceleration sensor is capable of measuring acceleration electronic equipment. Acceleration sensor / accelerometer / vibration sensors can be used to measure vibration, shock , speed, displacement and tilt . Beijing Sai Siwei Control Technology Co. Ltd. Precision Electronics -MEAS Engine Position Sensor Vibration / accelerometer segment as the vanguard force in the world , has been committed to the acceleration sensor / accelerometer and vibration sensors R & D and business development work , products widely used in the automotive, medical, military / aerospace , and consumer products and other fields , and has a silicon micromachined ( silicon piezoresistive ) , strain gauge and piezoelectric materials bound core technology . Product categories include: a piezoelectric acceleration Crank Shaft Sensor , piezoresistive accelerometer , three-axis acceleration sensor , mobile acceleration sensors, acceleration sensor chip.
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