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Wireless Strain Gauge SenSpot™

Description


Wireless Strain SenSpot™ sensors offer a breakthrough technology for real-time and long-term structural health monitoring.  SenSpot™ strain gauge uses Resensys’s proprietary sensing, scheduling and ultra-low power synchronization technology. SenSpot™ is designed to operate maintenance-free for more than a decade. After installation, SenSpot™ does not need calibration, battery replacement, or any other maintenance during its entire service life.

10+ Years Battery Life

without battery replacement

High Precision

1-µStrain resolution

Easy Installation

self-adhesive(e.g. steel)/
flange-mount(e.g. concrete)

Long Wireless Range

1 km fee space

Quick Testing Available

easy to reuse in other places

High Sampling Option

record unusual strain event

Strain Spikes Detection (Customizable)

High sampling rate instant data transmission triggered by strain spikes:
• A balance between power consumption and performance.
• Perfect for detecting event and recording the waveform of a sudden strain change.
• The triggering threshold is adjustable from 16µStrain to 512µStrain; the sampling rate can be changed from 10ms to 200ms

Featured Applications

• Long- term and continuous monitoring of strain (stress).
• Detecting short-lived and transient high-strain events, e.g., caused by fast moving trucks on highway bridges or by turbulence on airframes.
• Fatigue awareness, fatigue life analysis (remaining useful life estimation).
• Fast, easy-to-install adhesive mount.
• Examples applications:
   ○ Highway bridges
    ○ Airframes
    ○ Pipelines
    ○ Machines, cranes, etc.
    ○ Truck tests, bridge load rating

Specs & Details

• Long lifetime: minimum expected life without battery replacement 10 years
• Lightweight: about 147 g (5.19 oz.)
• Wireless transmitter: 120 g (4.23 oz.)
• Cable (1ft): 10 g (0.35oz.)
• Strain sensing element: 17 g (0.6 oz.)
• Easy mounting:
    ○ Self-adhesive, no drilling is required (e.g. steel)
    ○ Flange-mount, drilling is required (e.g. concrete)
    ○ Quick installation, 1-2 minutes
• High accuracy: 1-µStrain resolution
• Wide working temperature: -40 to +65°C (-40 °F to +150°F)
• Long communication range: 1.0km free space
• Small size:
    ○ Wireless transmitter: 50mm (1.96”) x 50mm (1.96”) x 34mm (1.34”)
    ○ Strain Gauge sensor: 76.2mm (3”) x 33.4mm (1.30”) x 10mm (0.4”)
• Complementary data collected: temperature, battery voltage, etc.

Datasheet