YLE Camshaft Position Sensor Photoelectric crankshaft position sensor signal from the signal generator and the composition of the disk with a light hole

Photoelectric crankshaft position sensor is generally installed in the distributor , the signal from the signal generator and the composition of the disk with a light hole . Its YLE Crankshaft Positioning Sensor signal plate together with the distributor shaft rotation , the signal plate outer ring 360 lithography gap , generating a signal of 1 ° crank angle ; slightly inside there are six intervals 60 ° aperture cloth , producing a crank angle of 120 ° signal, wherein an aperture is wider, with respect to cylinder 1 TDC signal is generated . The signal generator is mounted on the distributor housing , the two light-emitting diodes , photodiodes and the second circuit only . Light-emitting diodes facing the photodiode. Signal plate located between the light-emitting diodes and photodiodes , because the signal plate light hole , the resulting alternating transparent and blackout phenomenon . When the beam of light emitting diodes photodiode , the photodiode YLE Crankshaft Positioning Sensor generates a voltage ; when the LED light is live file , the photodiode voltage is 0 . The voltage signal amplified by the shaping circuit portion , namely the electronic control unit crank angle signal transport , the electronic control unit 1 ° and 120 ° when the engine rotational speed calculated based on these signals and crankshaft position

Displacement sensor with high accuracy in detection

Displacement sensor with high accuracy in detection, such as constant on the environment temperature requirements, the movement mechanism of precision control requirements. At present, for the installation YLE Camshaft Position Sensorproblem detection displacement sensor, the researchers developed a laser displacement sensor, which uses echo analysis principle to measure the distance to reach a certain degree of accuracy. The sensor is composed of a processor unit, signal processing unit, a laser emitter, a laser receiver etc.. At present in the industry of displacement YLE Coolant Temperature Sensor, detection distance displacement is the most popular topic. Perhaps the displacement measurement is not an end, but a series of problems of displacement variation in size and the need of measurement precision level is to correspond to what kind of applications.

Measuring acceleration sensor sensitivity calibration method

The sensitivity of the sensor is an important parameter of the sensor , using the standard must be repeated to ensure that no change in the original calibration values ?. Technical supervision of the Swiss contingent is not what normally use absolute standard method , and in engineering and field testing site conditions are usually using comparative law . Acceleration YLE Automotive Temperature Sensors in all the sensitivity of the sensor is abnormal concern , following the determination of the sensitivity of the acceleration sensor voltage by resistance strain gauge testing methods.First, we need to understand is the acceleration sensor calibration principle: it is based on Newton's second law of motion , gravity analysis method can be used to calibrate the accelerometer . Measuring system consists of the installation with the cushion on the basis of the force sensor in a rigid , cylindrical steel fitted with accelerometer mass , as well as rail. First experiments with the output mass on the mounting pads and the force YLE Car Temperature Sensor, when the mass is removed quickly , the output side of the output of the sensor, an acceleration sensor with this reading is divided by cylindrical steel quality , so the first sensor output is calculated sensitivity coefficient . Then the acceleration of the fall on the steel columns from highly suitable cushion and force sensors , force sensors simultaneously output peak recorded good acceleration peak output of the sensor, according to Newton's second law of motion , force equals reaction .This calibration method for a linear sensor, a force sensor sensitivity coefficient will eliminate , however , dependent on the calibration of the local gravitational acceleration. Pulse duration of the impact cushioning material and thickness determined , the pulse height determines the amplitude of the free fall , in order to cover a certain frequency and amplitude range , the height of a cushion with a different combination of materials and to complete free fall , this calibration method You can use in the field , the calibration accuracy can be within 1% .