Epson’s M-A352 Accelerometer Ideal for Structure Health Monitoring

Epson acceleration sensing technology helps realize safer social infrastructure

Epson M-A352 acc

Seiko Epson Corporation (TSE: 6724, “Epson”) has developed a new high-performance three-axis accelerometer, the M-A352. Samples will begin shipping at the end of 2018, with volume production scheduled for the spring of 2019.

Epson’s accelerometers, first launched in 2014, have been used in an array of applications, earning an excellent reputation for outstanding performance and quality. Aging social infrastructure and the soaring cost of infrastructure maintenance, monitoring, and renewal are recognized as serious problems for nations and communities. This recognition is driving a growing need for technology to monitor the health of structures using sensors.

Epson M-A352

Epson developed the new M-A352 to give momentum to the spread of serious structure health monitoring technology. The M-A352 provides the necessary noise performance of 1 µG/√Hz or better (servo accelerometer*1 class) along with outstanding durability and manufacturability, ensuring stable supply and cost competitiveness. Offering a rare combination of excellent accuracy and high durability, the M-A352 can be used for applications where high-accuracy measurements were formerly difficult to take.

Product features

  • High shock resistance: 1,200 G (quadruple that of the M-A351, Epson’s existing product)
  • Low noise: 0.5 µG/√Hz type.
  • Wide dynamic range: 27 bits
  • Original noise-resistance direct digital conversion technology
  • Low-jitter external trigger function that enables high-accuracy time synchronization in multi-node measurement


This accelerometer can be used in structural health monitoring (e.g., of buildings, roadway structures, bridges, tunnels, and steel towers), earthquake detection, environmental vibration measurement, industrial equipment monitoring, unmanned vehicles (e.g., terrestrial vehicles, undersea probes), and the measurement of the vibration and path of industrial equipment and vehicles.

Epson is scheduled to give a technical presentation and demonstration of this product at 2018 DGON Inertial Sensors and Systems (ISS), an international conference to be held in Braunschweig, Germany, from September 11-12.

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