Catalogs >
Micromega Dynamics >
Structural Health Sensors

Structural Health Sensors
7Pages

Catalog excerpts

STRUCTURAL HEALTH SENSORS STRUCTURAL HEALTH SENSORS SENSORS SPECIFICALLY MADE FOR PERMANENT OUTDOOR STRUCTURAL MONITORING The Structural Health Sensors combine a 2-axis accelerometer with a temperature sensor. Their enhanced internal surge protection and electromagnetic interference immunity makes them particularly suitable for the permanent monitoring of tall outdoor structures. The Structural Health Sensors can perform measurements in extreme conditions ranging from -40°C to +85°C. They are of course dust and watertight to IP66. We have a proven track record of several thousands of such sensors operating reliably around the world..

Open the catalog to page 1

FIELD OF APPLICATIONS Monitoring of Slender Structures Slender structures, such as telecommunication towers, chimneys and elevated water reservoirs can be very sensitive to dynamic wind loading. Indeed, wind-induced forces can cause significant dynamic response which may lead to structural damages. In the case of telecommunication towers, they can also lead to signal transmission distortion. Therefore, design criteria for slender structures must include dynamic stiffness which depends on the main resonances frequencies and inherent structural damping. These characteristics must be measured...

Open the catalog to page 2

CHARACTERISTICS Acceleration Channel Characteristics – High Resolution Test Condition Sensitivity change with Temperature Zero-g level Zero-g level change with Temperature 2 order low-pass filter cutoff frequency (1) Cross Axis Sensitivity nd Non-linearity Acceleration noise density Sensitivity can be easily derived from 2 measurements at +1g and -1g as accelerometers measure DC Acceleration Channel Characteristics – Standard Resolution Test Condition Sensitivity change with Temperature Zero-g level Zero-g level change with Temperature 2 order low-pass filter cutoff frequency (1) Cross Axis...

Open the catalog to page 3

Temperature Channel Characteristics Test Condition Measurement range Accuracy Temperature noise density 2 order Butterworth low-pass filter cutoff frequency Temperature Sensor Response Curve Power Supply Test Condition

Open the catalog to page 4

REFERENCE DIRECTIONS

Open the catalog to page 5

CERTIFICATIONS Electromagnetic Compatibility Limit / Level Emission Radiated Emission Radiated Emission Electrostatic Immunity Electrical fast transient / burst immunity Immunity to conducted disturbances, induced Criterion A by radio-frequency fields Power frequency magnetic field immunity Short duration field 100A/m 50 & 60Hz Criterion A Operating Temperature Limit / Level Cycling between -40°C and +85°C Operation at -40°C (including cold start)

Open the catalog to page 6

ORDERING REFERENCE NOTE When ordering with cable connections, the cable is mounted at the factory. Please specify required length. Standard cable gauge is 0.25 mm² (AWG24). Higher cable gauge might be required for long cable runs. ENGINEERING SERVICES • • • • Other resolutions and/or measurement ranges Special coatings Special cables Integration with monitoring systems and cloud platform • Adaptations for underwater use Rue du Trou du Sart 10 B-5380 Fernelmont | Belgium EU ID.:BE0466034916 info@micromega-dynamics.com www.micromega-dyna

Open the catalog to page 7