Epson's three-axis accelerometer M-A352AD10 is a secret weapon for ground vibration monitoring

     On April 3, a magnitude 7.3 earthquake struck Hualien County, Taiwan, causing tragic loss of people and property. Many standing buildings collapsed in this natural disaster and became ruins. It seems that magnificent buildings can easily shatter like tofu in the face of earthquakes. But there is such a building that still stands firm, and that is the 1915 Chanacale Bridge in Sergi. As a cross sea bridge, why did it survive earthquakes? The reason is that this bridge has a complete structural health monitoring system. In response to an increasing number of natural disasters, structural health monitoring has become an indispensable part of engineering construction. In response to this, Epson has launched the secret weapon that still stands firm under natural disasters - the Epson (EPSON) three-axis acceleration sensor M-A352AD10.

     Due to the influence of different media, seismic waves have different frequencies, and their distribution ranges from DC to 400Hz. This means that in order to comprehensively monitor, it is necessary to cover the entire frequency band. Of course, it is feasible to independently monitor different frequency bands through multiple monitoring units. However, many times, due to limitations in the deployment environment, it is not possible to deploy multiple monitoring units simultaneously, which leads to users needing to choose the measurement frequency range and unable to comprehensively monitor all vibration situations. Therefore, how to achieve full frequency seismic monitoring through a single sensor is a difficult problem that needs to be solved.

     The high-precision three-axis accelerometer M-A352AD10 utilizes digital sensor technology and a built-in programmable digital filter to accurately filter out signals in the desired frequency range, eliminating the need for multiple monitoring units in different frequency ranges. It can achieve full frequency range monitoring from DC to 460Hz, truly achieving deployment and comprehensive monitoring under any environmental conditions with a single sensor, thus solving the problem of users needing to choose a frequency range.

    At the same time, the high-precision three-axis accelerometer M-A352AD10 has an output range of ± 15G, which can output at any time even when facing peak accelerations of magnitude 10 earthquakes (about 1G). And its anti-interference performance is also impressive, with an average noise density performance as low as 0.2uG/VHz. If calculated at 6Hz frequency, it is only less than 1uG of noise value, which can have a negligible impact on the measurement results, greatly improving measurement accuracy and ensuring more comprehensive accurate monitoring of all vibrations.

M-A352AD10 has the following improved impact capacity: 1200G (M-A351:300G);

Optional interfaces: SPI/UART;

Optional output methods: acceleration/tilt angle,

Programmable low-pass digital filters,

Low jitter external trigger function to achieve synchronous sampling;

Low power mode,

Solid alloy base (size: 48X24X16mm3, weight 21g).