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Wireless Strain Gauge SenSpot™

Description


Stress and strain sensing are an integral part of most structural condition monitoring systems. Wireless Strain Gauge SenSpot™ sensors offer a breakthrough technology for real-time and long-term monitoring of structural integrity. SenSpot™ strain gauge sensors use Resensys proprietary sensing, scheduling, and ultra-low power synchronization technology. It is designed to operate maintenance-free for up to a decade. After installation, wireless strain gauge sensor SenSpots™ do not need calibration, battery replacement, or any other maintenance during its 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 free space

Quick Testing Available

easy to reuse in other places

Data Analysis

High Sampling Option

record unusual strain event

Benefits of Wireless Strain Sensor

Long battery lifetime (10 years, typical)
Wireless communication (IEEE 802.15).
Small size and light weight
High Accuracy: 1 microstrain typical resolution
High-rate data transmission triggered by sudden strain changes
Adjustable transmission interval
Easy mounting
High compatibility

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.
Monitors and measures strain for highway bridges, airframes, pipelines, machinery, cranes, tunnels etc.
Conducts fatigue analysis, truck tests, and bridge load ratings.
Assess structural health in nuclear powerplants, wind turbines, and railway infrastructure.
Monitoring strain in buildings, dams, and retaining walls.

Wireless Strain Gauge Sensor

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