Why use seismic sensors?

Earthquakes, tremors, and the constant flow of foot, automobile, and train traffic exert significant low-frequency vibrations on infrastructure foundations. Left unmonitored, these vibrations can accumulate stress, posing safety risks. Seismic vibration sensors are pivotal in converting ground and infrastructure vibrations into critical information. This data informs a multitude of applications, including:

  • Smart Infrastructure: foundation integrity, floor vibration, and security monitoring
  • Earthquake detection and sway fatigue analysis
  • Structural testing on bridges, building foundations, and pre-stressed concrete assemblies
  • Geological formation studies

ICP® accelerometers as Smart Infrastructure Sensors

In the realm of smart infrastructure, proactive monitoring through real-time data logging is essential for ensuring structural integrity. Timely insights are especially crucial during unexpected loading events. Looking ahead, cities must not only manage the construction of new structures but also safeguard critical or historical assets, minimizing the risk of catastrophic losses. By leveraging ICP® accelerometers designed for low amplitude and low frequency measurements, structural integrity data can be continuously gathered in real time. These high-output accelerometers, strategically installed on bridges, walkways, highways, buildings, and other large structures, capture invaluable trending data. This proactive approach to maintenance enables engineers to anticipate the need for structural repairs and provides communities with early warnings as safety thresholds approach, fostering safer and more resilient urban environments for the future.

The PCB® difference

PCB®'s cutting-edge sensor technology revolutionizes low-frequency measurements, achieving sensitivity down to micro-g levels. Our high-sensitivity ICP® accelerometers are meticulously engineered to detect ultra-low-level vibrations associated with large civil structures, foundations, earthquakes, and tremors. These sensors boast exceptional measurement resolution thanks to their large size, delivering robust output signals and minimizing influence from EMI. Encased in hermetically sealed titanium or stainless steel housings, our units offer unparalleled durability. Models featuring a 2-pin military-style connector provide additional benefits, including electrical case isolation for superior RF and EMI protection.

Choose PCB® seismic sensors to measure confidently

PCB® sensors for infrastructure testing and monitoring are used by design engineers worldwide. We have thousands of seismic vibration sensors in stock, ready to ship, with lifetime warranty. Find, compare, and shop sensors and accessories online. Call 800.828.8840 24/7 or request a quote.

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Model Number

Model:393B05

  • Sensitivity: (±10%)10 V/g
  • Sensitivity: (±10%)1.02 V/(m/s²)
  • Broadband Resolution: (1 to 10000 Hz)0.000004 g rms
  • Broadband Resolution: (1 to 10000 Hz)0.00004 m/s² rms
  • Measurement Range: 0.5 g pk
  • Measurement Range: 4.9 m/s² pk
  • Frequency Range: (±5%)0.7 to 450 Hz
  • Frequency Range: (±5%)0.7 to 450 Hz
  • Electrical Connector: 10-32 Coaxial Jack
  • Electrical Connector: 10-32 Coaxial Jack
$696.00 USD
(Pricing valid in US only)
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Model Number

Model:393B31

  • Sensitivity: (±5%)10.0 V/g
  • Sensitivity: (±5%)1.02 V/(m/s²)
  • Broadband Resolution: (1 to 10000 Hz)0.000001 g rms
  • Broadband Resolution: (1 to 10000 Hz)0.000009 m/s² rms
  • Measurement Range: 0.5 g pk
  • Measurement Range: 4.9 m/s² pk
  • Frequency Range: (±5%)0.1 to 200 Hz
  • Frequency Range: (±5%)0.1 to 200 Hz
  • Electrical Connector: 2-Pin MIL-C-5015
  • Electrical Connector: 2-Pin MIL-C-5015
$1164.00 USD
(Pricing valid in US only)
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Model Number

Model:393B12

  • Sensitivity: (±10%)10000 mV/g
  • Sensitivity: (±10%)1019.4 mV/(m/s²)
  • Broadband Resolution: (1 to 10000 Hz)0.000008 g rms
  • Broadband Resolution: (1 to 10000 Hz)0.00008 m/s² rms
  • Measurement Range: 0.5 g pk
  • Measurement Range: 4.9 m/s² pk
  • Frequency Range: (±5%)0.15 to 1000 Hz
  • Frequency Range: (±5%)0.15 to 1000 Hz
  • Electrical Connector: 2-Pin MIL-C-5015
  • Electrical Connector: 2-Pin MIL-C-5015
$825.00 USD
(Pricing valid in US only)
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