Prime Photonics energy harvesting technologies include magnetothermal generators (MTGs), magnetothermal pumps and self-powered wireless strain gage systems.   These technologies are still under development but we welcome enquiries and learning about new applications.

We also are experienced in integrating COTS devices such as thermoelectric generators (TEGs), heat pipes and piezo vibration harvesters to create custom single- and mult-source harvesting devices.

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                <span class='desc'>Magnetothermal harvesters excel in applications with small thermal gradients.</span>
Magnetothermal harvesters excel in applications with small thermal gradients.
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                <span class='desc'>Hybrid harvester pumps can move fluid using only energy harvested from thermal gradients.</span>
Hybrid harvester pumps can move fluid using only energy harvested from thermal gradients.
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                    <span class='desc'>Miniature self-powered wireless strain gauges will reduce installation time and maintenance.</span>
Miniature self-powered wireless strain gauges will reduce installation time and maintenance.
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                <span class='desc'>This multi-source harvester converts energy from thermal and/or vibration sources to operate a differential pressure sensor and wireless data link.</span>
This multi-source harvester converts energy from thermal and/or vibration sources to operate a differential pressure sensor and wireless data link.

Magnetothermoelectric Thermal Harvesters (Hybrid Harvesters)

Prime Photonics is developing MTG energy harvesters to convert excess thermal energy into usable electrical power. The MTG energy harvesters can be applied to multi-junction photovoltaic cells (solar panels) to increase efficiency. MTGs can also be used for terrestrial solar power generation, enabling reduced launch weight and extended mission times.

Magnetothermal Pump (Hybrid Harvester Pump)

Magentothermal (MT) pumps offer the heat rejection benefits of an active cooling device without the need for external power. MT pumps transform waste heat into mechanical motion. This mechanical energy is used to move cooling fluid. The MT pump is a self-powered pump that has heat rejection rates comparable to active cooling devices. This technology can be used to cool server farms or concentrated photo-voltaic cells.

Self-Powered Wireless Strain

With our partners at Virginia Tech, Prime Photonics is working to develop a wireless strain node that is self-powered through ambient vibrations. This is achieved by coupling high energy density, textured piezoelectrics with high resistivity piezoceramic strain gauges. Initial testing has shown that we can harvest 200uW to power a 200uJ radio transmission for continuous 1HZ data transmission. This technology will be used in distributed wireless strain applications where active health monitoring in remote locations is critical to mission success.

Omnivore Multi-Source Harvesters

Omnivore™ Multi-Source Energy Harvesters efficiently extract energy from vibration, thermal gradients and/or flow.  Intelligent power conditioning and power management electronics allow customized performance over wide operating regimes.  Specific technologies include wideband vibrational harvesters, fluidic oscillator-based flow harvesters, high temperature thermo-electric generators and heat pipe thermal harvesters.

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