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Low Frequency, High Sensitivity Accelerometers

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High sensitivity, IEPE accelerometers are specifically designed to enable the detection of ultra-low-level, low-frequency vibrations associated with very structures, foundations, and earth tremors.
Applications

  • Bulding Vibration Monitoring
  • Earthquake Detection
  • Structural Testing of Bridges
  • Floor and Foundation Monitoring
 122A
131A Series: IEPE Mode
231A Series: PE Mode		 132A
132A Series: IEPE Mode
232A Series: PE Mode		 146A
146A Series: Triaxial IEPE Mode

 

Low Frequency, High Sensitivity, Accelerometers
Model
YMC		 Sensitivity Resonance
Frequency		 Frequency Range
Hz (±10%)		 Resolution Measuring
Range		 Temperature
Range
 Weight Dimensions
131A01 1V/g ~5kHz 0.2~1k 0.02mg ±5g -40~+121oC 185 Gram Ø28x62 mm
131A10 10V/g ~5kHz 0.1~500 0.004mg ±0,5g -40~+121oC 185 Gram Ø28x62 mm
231A01 1,000pC/g ~8kHz 0.2~1k - ±500g -40~+150oC 185 Gram Ø28x62 mm
132A01 1V/g ~4.5kHz 0.2~1k 0.02mg ±5g -40~+121oC 180 Gram Ø38x48 mm
132A10 10V/g ~4.5kHz 0.1~500 0.004mg ±0,5g -40~+121oC 180 Gram Ø38x48 mm
232A01 5,000pC/g ~4.5kHz 0.2~500 - ±500g -40~+150oC 180 Gram Ø38x48 mm
146A02 2.5V/g ~5kHz 0.2~500 0.01mg  ±2g  -40~+121oC 820 Gram 80x80x32 mm
High Sensitivity IEPE Accelerometers
Applications
  • Building Vibration Monitoring
  • Earthquake Detection
  • Structural Testing of Bridges
  • Floor Vibration Monitoring
  • Geological Formation Studies
  • Foundation Vibration Monitoring

High sensitivity, IEPE 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.
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.
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.
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.