EH-Link™ Energy Harvesting Wireless Sensor Node
EH-Link™ Energy Harvesting Wireless Sensor Node
Self-powered wireless sensor.
The EH-Link™ wireless node is a self powered sensor, harvesting energy from ambient energy sources. EH-Link™ is compatible with a wide range of generator types, including piezoelectric, electrodynamic generators, and thermoelectric generators.
In applications with vibrating machinery or structures under load, the EH-Link™ can be self powered from a tiny generator. The EH-Link™ can operate from high impedance AC or DC sources, in the range of 5.0 V to 20 V.
The ultralow voltage (ULV) input of the EH-Link™ allows powering from Peltier Thermoelectric Generators (TEGs), or thermopiles. This ULV input can power the EH-LinkTM from as low as 0.02 Vdc and up to 0.6 Vdc making the wireless sensor node operable from thermal gradients below 8°C with TEGs.
Using the high impedance 5-20V harvester input, the EH-Link™ can also operate in ambient light levels well below that required for solar cell use with traditional electronics.
Sophisticated energy conversion and conservation methods allow the EH-Link™ to operate with a fraction of the power normally required for a wireless sensor node.
The EH-Link™ wireless sensor node is versatile and is designed to operate as part of MicroStrain's 802.15.4 wireless sensor network. Each node in the wireless network is assigned a unique 16 bit address.
The EH-Link™ Pioneer Kit, MicroStrain part number 6320-0041 includes 1 EH-Link™ wireless sensor node, 1 solar demo harvester and 1 TEG demo harvester, enabling users to set up an Energy Harvesting demo in minutes.
Sensor Support
- External strain gauges
- Bridge sensors (pressure sensors, load cells, etc.)
- Pulsed DC excitation pin to provide power for external sensors
- Onboard relative humidity & temperature sensor
- Onboard three axis accelerometer
Harvester Support
Standard Voltage Input:
- piezoelectric
- inductive
- EM field
- AC or DC sources that produce > 5 V instantaneous open circuit voltage
Ultralow Voltage Input:
- thermoelectric generators
- low voltage solar cells
- no batteries required, EH-Link™ is self powered from high impedance AC and DC sources or low voltage DC sources as low as 20mV
- out-of-the-box wireless sensing capability for most analog sensors
- 2.4 GHz direct sequence spread spectrum IEEE 802.15.4 radio operates in license free band world wide
- communications range up to 70 m line of sight
- supports auxiliary storage options such as supercapacitors or rechargeable thin film batteries (TFB)
- supports multiple nodes at sample rates up to 2048 Hz
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General Documentation
Technical Notes
- EH-Link™ Quick Start Guide
- EH-Link™ Powered by Thermoelectric Generator
- EH-Link™ Powered by Indoor Solar Cell
- EH-Link™ Powered by Piezoelectric Source
- USB Base Station Extender
Mechanical Drawings
FAQs
How To Order
To discuss configuration for your specific system requirements, please contact sales at sales@microstrain.com or call 802-862-6629.
For large quantity orders or OEM discussions, please contact mirobinson@