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| High Sensitivity ICP® Accelerometers |
Applications
- Building Vibration Monitoring
- Earthquake Detection
- Structural Testing of Bridges
- Floor Vibration Monitoring
- Geological Formation Studies
- Foundation Vibration Monitoring
High sensitivity, ICP® accelerometers are specifically designed to enable the detection of ultra-low-level, low-frequency vibrations associated with very large structures, foundations, and earth tremors. These sensors typically possess exceptional measurement resolution as the result of a comparatively larger size, which furnishes a stronger output signal and a lower noise floor.
Both ceramic and quartz sensing elements are utilized in seismic accelerometer designs. Model 393C, with a quartz sensing element, offers the best low-frequency response in this series. Ceramic element styles with built-in, low-noise, signal conditioning circuitry offer the greatest measurement resolution. The model 393B31 leads the way, providing 1 µg rms broadband resolution.
All units are hermetically sealed in either a titanium or stainless steel housing. Models that include a 2-pin, military style connector provide the added benefit of being electrically case isolated for superior RF and EMI protection.
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Vibration monitoring of civil structures and treasured monuments can be an essential practice for ensuring the safety of occupants or protecting the structure from catastrophic demise. Studies have shown that crowds of people in a stadium grandstand or theater balcony can impart tremendous forces and harmonic motion to the structure when the crowd acts in a synchronous manner. Earth tremors, foot traffic, and trucks & trains can impart vibration, which can cause a structure to sway, shift, crumble, or collapse. Permanent-monitoring high-sensitivity accelerometers are useful for trending, analyzing, and alerting when structural motion exceeds established safety limits to enable corrective or evasive action. |
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Decaying infrastructures, particularly bridges, have received heightened awareness in recent years. Among the several techniques for determining the health and longevity of such civil structures are vibration measurements for continuous monitoring, modal analysis, and structural integrity investigation. High sensitivity accelerometers are utilized for generating signals in response to a variety of stimuli including traffic, wind, and programmatic impulse. When analyzed, these signals provide insight for determining the condition and safety of the structure. Such an investigative analysis can lead to a recommendation for remedial construction or further monitoring. |
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From ready-to-ship stock products, to custom-made specials, PCB® proudly stands behind all products with services you value most, including our 24-hour technical support, global distribution network, and the industry's only commitment to Total Customer Satisfaction.
Contact us with your next test & measurement project!
Toll Free in USA: 800-828-8840
24-hour SensorLineSM: 716-684-0001
Email: info@pcb.com |
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