What does the accelerometer calibrator do?
Accelerometers are electronic devices that measure the amplitude and phase relations of various vibration points of the structure or environment. This type of device is commonly used for seismic vibrations, where the sensors are located in various places on the bridge, building or even on the ground. The planted devices measure the vibrations of these environments and detect structural changes that can be caused by natural disasters such as earthquakes, human activity such as construction or mining, and even large vehicles. These devices must be accurate to ensure correct results, and eventually are a means of determining the safety of the environment and preventive measure. The accuracy of these devices is determined by the accelerometer calibrator, which measures and corrects the functioning of the device.
The accelerometer calibrator is usually a small electronic device with a square or rectangular shape that is easily portable to the field field, such as outdoors in the mining point. Tandard Accellerometer scalibtor consists of a vibrating exciterE, which is powered from the battery and separately. This exciter measures, verifies, and calibrates the sensitivity of the accelerometer and can determine how accurate it is within a million decimal value. Its internal control and excitement system provide continuous and exact frequency. Separate closed loop at the same time maintains a consistent amplitude that is independent of the mass of a particular test cell
Like other electronic devices, accelerometers are subject to degradation and wear, so these devices need to be consistently controlled by the accelerometer calibrator for accuracy and proper operation. The voltage from the measurement and the provision of the reading degrades the device and the accelerometer calibrator adjusts the device based on the voltage output. However, the repair of the accelerometer will not be more accurate and the addition of further calibration. The accelerometer calibrators currently have accuracy between 10 ppm and 1 ppm. More accurate patterns are usuallyMade of stronger and better material, but are less cost -effective.
The accelerometer calibrator function is to read the output values of the accelerometer. The device is read in angular positions that are equally located around the horizontal axis. The vertical plane represents the axis of sensitivity and the accelerometer calibrator seeks to align these two axes as close as possible to the central point. The device can be calibrated either by four or three points. The final calibration is solved through a comprehensive series of mathematical equations with variables including frequency, acceleration and amplitude, among other things.