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Three-Dimensional Vibration Sensor For Security Applications

Nanjing Yuantuo Tech : 08 July, 2010  (New Product)
Yuantuo has produced a vibration sensor with high accuracy in distinguishing extraneous noise from alarm conditions, making it ideal for use as a surveillance trigger
Yuantuo has developed the YT-SHK vibration detector with high performance, low power consumption and new detection technology. It is used specially for detection tasks of unattended areas.

The application of sensors in the financial security, transportation and precise instrument markets have been developing all the time. Compared with the sensors designed for entertainment, these markets have higher requirements on performance, power consumption and operational readiness. The YT-SHK vibration sensor is a second generation product developed by Yuantuo on the basis of the first generation vibration sensors in the industry. It uses the omni-bearing three-dimensional vibration detection principle which can distinguish a strong attack from very noisy environments. At present, most sensors in the market are only one-way detection which are not suitable for alarm accuracy requirements.

This vibration sensor has high performance and low power consumption and can be widely used in many fields such as ATMs, vaults, magazines, jails, high-grade residences, production lines, precise instruments and any platform that needs stable real-time surveillance system. "Before the first generation vibration sensors are released to the public, Yuantuo has already started to develop the second generation products.

"The vibration sensor combines a MEMS sensor with a microcontroller which form an intelligent signal processing system", said the director of destructive vibration lab, Zhang Jinguang.

The vibration detector is an intelligent signal processing system that combines a MEMS sensor with a microcontroller. The internal sensor of the vibration detector can transform the changes of vibrations into electric signals. Meanwhile, the digital processing function can analyze and compare the signal by collecting three-dimensional vibration signals in real time and then comparing with the preset vibration amplitude and analyzing. Once it is over the rated range, it will trigger the alarm through a relay. The detector collects the signal every millisecond.

Engineers at the Yuantuo Product Development Department think that it is hard to achieve the perfect unity of the performance-price ratio. People always use the single spring chip sensors to do the detection work. However, practice results prove that this method cannot achieve the optimum effect and always causes omissions. Compared with other sensors, the YT-SHK vibration detector really achieves the omnibearing detection. It can detect all known strong attacks and the advanced signal processing technology can distinguish external noise from a real attack. Any kind of attack will result in an alarm.
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