0192880364

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0192880364 Application Field and Working Principle

0192880364 is a type of vibration sensor that is used in a wide range of applications ranging from security systems to earthquake forecasting. Vibration sensors are used to detect variations in the motion/vibration of an object or surface. The vibration sensor picks up motion vibrations and then converts them into electrical signals. This enables the detection of vibration intensity and frequency.Vibration sensors have various applications and are used for a range of detection purposes. The most well-known application of vibration sensor is in making home security systems. The vibration sensor picks up even the tiniest of trembling, which is then sent to the security system. Upon detecting motion, the security system will trigger the alarm and alert the user. Another common use of vibration sensors is earthquake forecasting. Seismographs, which are special instrumentations for measuring the intensity of shaking and shaking velocity of the ground, utilize vibration sensors to detect the vibration frequency of a particular area and assess the degree of seismic intensity. Furthermore, vibration sensors are also used in process control and robot operations to measure the motion and off-set of the robot movement. As such, they are used for accurate and precise control.In order to achieve such functionalities, vibration sensors have to employ specific sensing elements. Piezo transducers and capacitive transducers are two major technologies used in vibration sensors. Piezo transducers convert vibrations into electrical signals due to their piezoelectric effects. That is, the vibration acts on the crystalline structure of the material, deforming it and causing the material to produce electric energy in the form of an electrical field and electrical current. Alternatively, capacitive transducers detect vibration when a seismic mass comes into contact with several electrodes. As the mass vibrates, the variable capacitance between the mass and the electrodes changes and creates an electric signal.Likewise, vibration sensors also employ operating principle in order to accurately measure the vibration and send electrical signals accordingly. The most common vibrating sensors have two basic operating principles, namely, resonant frequency and non-resonant frequency. For resonant frequency, the vibrating sensing element forms a resonance frequency that is matched with the vibrational frequency of the examined object. If the vibration frequency of the object is equal to the resonance frequency of the sensor, the resonance frequency will increase. On the other hand, for non-resonant frequency, the object vibrates at any frequency, and the electrical signal is proportional to the displacements or accelerations of the object.Vibration sensors are convenient and cost-effective tools for monitoring and detecting different types of motions. By recognizing the motion of objects/surfaces and converting them into electrical signals, they allow motion to be easily studied, monitored and tracked. Thus, they are essential elements in modern day security systems, earthquake forecasts and robot automation.


References
Marrone, J. J. (Ed.). (2016). Handbook of earthquake vibration protection of structures. Springer
Mulletic, D. (2008). Early Earthquake Warning Systems The Way of the Future in Earthquake Reduction?
Skai, T. (2017). Applications of Vibrational Sensors in Industrial Automation. (G. M. Soni, Ed.) In Industrial Applications of Vibration Sensors (pp. 1-5). InTech.

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