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

Epson acceleration sensing technology helps realize safer social infrastructure

Munich, September 3, 2018 – Seiko Epson Corporation (TSE: 6724, “Epson”) has developed a new high-performance three-axis A352_BkBase_Baseaccelerometer, 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 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 typ. 
  • 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 structure 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. 

Product Specifications

Product number M-A352
Rate range ±15 G
Bias error ±2 mG
Temperature characteristics ±2 mG
Scale factor ±0.06 µG/LSB
Linearity 0.03 % FS
Noise density 0.5 µG/√Hz, rms @0.5 Hz or more
Output resolution 32 bit
Digital serial interfaces SPI & UART
Internal compensation at factory (compensated temperature range: -30℃ to 85℃) Bias, non-linearity, misalignment (axis to axis)
Output data range Up to 1,000 Sps
Operating temperature range -30°C to +85°C
Current consumption 16 mA @ 3.3 V
Low-jitter external trigger Up to 5 µsec
Shock resistance 1,200 G @0.2ms, half-sin
Size 48 x 24 x 16 mm
Weight 21 g

* These specifications are subject to change without notice.

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.

Related Links 

Please see the link below for further details about these products. Inquiries can also be made from this website. 


*1 Servo accelerometer: A type of high-accuracy accelerometer that is widely used in earthquake detection and to measure slight vibrations of civil engineering structures.

To receive even more information like technical data sheets, samples, EVBs or price information please contact an Ineltek office within your area or contact us at