A Breakthrough in Battery Life: Zepsor Technologies’ Zero-Powered Sensors
The Promise of Extended Battery Life
Battery life is a perpetual concern for users of smart devices, from smart displays to smartwatches. However, a groundbreaking innovation at Zepsor Technologies, a spinout of Northeastern University, has the potential to significantly extend battery life through the development of “zero-powered” sensors. The company is poised to revolutionize how we think about energy consumption in everyday devices.
The Journey of Innovation
For several years, Zepsor Technologies has been refining its innovative sensors, collaborating closely with chip foundries to iron out any kinks and imperfections. As the company prepares to ship prototypes to potential customers within the next year, the excitement around these sensors and their potential applications continues to build.
Understanding Zero-Powered Technology
Have you ever walked into a room and noticed the lights turn on automatically? More often than not, this phenomenon is achieved through motion-activated sensors. While relatively low-powered and affordable, traditional sensors have one major drawback: they continue to consume energy even in standby mode. This is where Zepsor’s technology offers a remarkable alternative.
How Do They Work?
Zepsor’s sensors harness infrared radiation, or heat, emitted from the human body for power, as explained by Zhenyun Qian, a professor of electrical and computer engineering and the company’s chief technology officer. Unlike conventional sensors, which drain battery power to remain vigilant, Zepsor’s sensors are designed to be “off-but-alert.” They can detect and discriminate between various sources of infrared radiation without consuming electrical energy.
This thermal energy is utilized to close a micromechanical switch integrated into the sensor, activating a desired function. For instance, this could result in a light turning off or a soap dispenser serving a small amount of liquid.
A Rich Background in Research
The roots of this groundbreaking technology trace back to research funded by the U.S. Defense Advanced Research Project Agency (DARPA) in 2015. DARPA aimed to explore low-power sensor technology, especially for military applications where battery replacement can be logistically challenging. Collaborating with colleagues, including Matteo Rinaldi, Qian and his team quickly transitioned to developing a solution that leverages longwave infrared technology.
Spectral Selectivity: A Key Feature
One of the standout aspects of Zepsor’s sensors is their spectral selectivity. Qian explains that the team integrated a miniature absorber powered by nanotechnology, allowing the sensor to harvest specific bands of infrared radiation. This functionality enables the device to differentiate between various sources of heat—whether it’s a human body, fire, or even smoke from a soldering iron—by analyzing their unique spectral signatures without tapping into electrical power.
Real-Life Applications
Imagine a soap dispenser that lasts five years on a single charge—a vast improvement over typical models, which can require battery replenishment every few months. Qian envisions practical applications for these sensors across various industries, from bathrooms equipped with smart soap dispensers to automated lighting systems in commercial settings.
Support from Northeastern University
Zepsor Technologies continues to benefit from the resources available at Northeastern University. Access to university facilities and research talent has been crucial for the company on its path toward commercialization. As Qian notes, the collaboration between academia and industry presents a successful model for researchers and entrepreneurs.
The Road Ahead
While Zepsor Technologies is still journeying toward full commercialization, the excitement surrounding its innovations is undeniable. With plans to unveil prototypes soon, the future of smart devices powered by zero-energy sensors looks promising, paving the way for longer-lasting, more efficient technology.