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% .