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IoT SenSpot - Wireless Enhanced Strain Gauge
The Resensys IoT sensor is versatile and provides an easy and inexpensive way to install a scalable solution for distributed structural integrity monitoring. It can measure two separate strain gauges. The transceiver and the solar panel can be easily mounted with either flanges or adhesive, both attached to the outer box. The device comes with a high-capacity lithium-ion battery charged by a solar panel. It does not require battery replacement; so that once installed, it is almost maintenance free. The whole product meets IP68 standard (completely weatherproof). As a result, it is an excellent choice for strain monitoring applications that require the sensors to be installed some outdoor places which are often hard to reach.
The device needs a Nano SIM card with an active plan that supports 4G LTE and a good cellular coverage to periodically connect to a remote server and send all measured data through the cellular network. It is a completely stand-alone product and does not need any other intermediate device such as a gateway.
The strain gauge is designed by default to be attached on steel surfaces, but it can be easily customized for other surface types such as concrete or wood.
IoT sensors can be applied easily to as many critical spots on a structure as needed with minimal installation effort.
This is a completely stand-alone device. It measures, saves, and later sends data through a cellular network to the remote server. With this device, there is no need to use an expensive extra cellular gateway for sending the data that can significantly reduce the project overall cost especially in small projects where only couple of sensors are needed.
This product uses Resensys’s proprietary Active RF Technology. Resensys SenSpot™ technology offers a high-performance method for large-scale sensing and ultra-energy efficient wireless communication.
For more detailed information about the Wireless Enhanced Strain Gauge IoT SenSpot™ please refer to the corresponding datasheet.
Long Lifetime
- solar powered and almost maintenance free without battery replacement
High Precision
- 1 µStrain resolution
Easy Installation
- self-adhesive(e.g. steel)/
- flange-mount(e.g. concrete)
Stand-Alone Device
- measure, save, and send data to server
Quick Testing Available
- easy to reuse in other places
High Sampling Option
- record unusual strain event
- Structural Health Monitoring (Airplanes, Bridges, Buildings, Cranes, Tunnels, Platforms,Machinery, etc.)
- Fatigue Analysis
- Bridge Load Tests
- Fracture Critical Monitoring
- Extreme Load Tests
- Detect Overweight Loads (e.g., dump trucks)
- Long lifetime: Solar powered and almost maintenance free
- Dimensions (transceiver box): 140mm (5.50”) x 105mm (4.12”) x 62mm (2.44”)
- Dimensions (Strain Gauge sensor): 76.2mm (3”) × 33mm (1.3”) × 9mm(0.4”)
- Weight: 0.8 kg (2 lb.)
- Operating temperature: -40°C to +65°C (-40°F to +150°F)
- Wireless Communication: LTE-M/NB-IoT
- Two channel measurement: performed independently of each other
- Sampling rate: every 1 second. Customizable up to every 100ms (10 Hz)
- High compatibility: integrates with thirds party strain transducers 120 Ohm, 350 Ohm, 700 Ohm, full-bridge, half-bridge and quarter-bridge (typically used for concrete surfaces)
- Sensing Element: Strain gauge
- Resolution: 1 με
- Range: ±1000 με
- Sampling rate: Up to 10Hz