Asking if there is there such a thing as good and bad acceleration in manufacturing may seem like an odd question, but it is justified. Shaking may be good for a cocktail, but it isn’t so good in a system or machine. The task is therefore to ascertain whether acceleration caused by oscillations and vibrations still can be tolerated or whether it is already so high that the application is being damaged and has to be stopped. "Prevention is better than cure" is one of the effective measures to prevent any crisis. The Vibration sensors are designed to ensure that machines and systems operate within safe operational parameters and to help users find imbalances caused by internal and external forces. The system is designed in such a way that first it will detect the vibraton and its frequency range using the piezoelectric sensor. This project consists of a piezoelectric sensor that will capture the vibration inside the object and detect frequency as well as voltage applied on it. This project can be used in the building blocks, earthquake detection, machines, bridge and many other purpose where the resonance analyse to be done.

     The followed part, we briefly present the existing related works on classification and resonance analyse of bridge, building blocks, machines, etc. Vibration monitoring is becoming increasingly important in machines and systems and it requires corresponding safety components to register vibrations, oscillations, inclination angles, and rotational angles safely. Vibration sensors with a can open safety interface and switching relay are designed to measure dynamic acceleration with a frequency range from 0.1 to 60 Hz. Band filters can be used to subdivide the frequency range into sub-areas so that, for instance, low frequencies of less than 5 Hz can be analyzed more precisely and higher frequencies do not act as a disturbance, and vice versa. All buildings have a natural period, or resonance, which is the number of seconds it takes for the building to naturally vibrate back and forth. The ground also has a specific resonant frequency. Hard bedrock has higher frequencies softer sediments. If the period of ground motion matches the natural resonance of a building, it will undergo the largest oscillations possible and suffer the greatest damage.

Resonace analyse with Piezoelectric Sensor . In this project, user need to detect vibratio frequency first before analyse resonance. We are using 52Pi Piezoelectric Sensor for measure applied force on it. The piezoelectric materials possess advantages of high sensitivity, high resonance frequency, high stability,etc. In this project, compare the actual threshold resonance frequency of object and frequency which is detect by piezoelectric sensor or accelerometer or gyroscope. Piezoelectric sensor detect high energy and gyroscope used for measure frequency of sea wave and accelerometer used for low level vibration. If generated frequency crossed thereshold resonance frequency value it shows value on LCD.

• To determine frequency of the vibration.
• To determine amplitude of the vibration.
• Finding energy amplitude of the vibration.
• Fetching direction of the vibration.
• Comparing frequency and amplitude with given respective threshold values.
• (Final operation of device is flexible and can be changed according to its purpose e.g.: - 1.) if device is being used to compare resonance of superstructure or towers then circuit can be modified to blow alarm. 2.) if the device is used directly in power supply of mechanical machine, then it can be modified to stop the power supply after analyzing abnormal activity in the machine