Vibration energy harvesters
Vibration Energy Harvesters (VEHs) are an innovative technology that can be used to convert ambient vibration into electrical energy in order to power sensors and wireless communications. Energy can be harvested from a wide variety of vibration frequencies.
This can be useful in places where there is no access to hard-wired power or it may be difficult to replace batteries, perhaps because of restricted access for safety reasons such as:
- Self-powered wireless sensor nodes (WSNs) on bridges, flyovers, and tunnels.
- Condition monitoring of rotating equipment, such as pumps used in water works.
- Measuring vibration or acceleration of railway tracks.
Wireless, self-powered sensors can be installed on such structures to predict system failure, improving reliability and safety.
Parametric excitation VEH is a new development in this field that can convert thirty times more mechanical energy into electrical energy compared to standard VEH technologies. This means that the size and weight of the VEH unit can be significantly lower. Parametric Excitation VEH has been developed by the Centre for Smart Infrastructure at the University of Cambridge.
 Related articles on Designing Buildings Wiki
 External references.
- The Centre for Smart Infrastructure.
Featured articles and news
What is Modernism?
Modernist architecture and its many international variations explained.
BRE support Europe-wide strategic heating plans for local and national authorities.
Work set to begin on 'one of America's greatest parks', which will be 10 times bigger than Central Park.
One of our most popular articles - RSHP's Mike Davies writes about the concept design process.
As Cuba mourn the death of Castro, major renovation of this symbolic landmark may be a reflection of the country's fresh start.
How cannabis plants are used to create an alternative building material with plenty of advantages.
What does Mayor Sadiq Khan's first policy statement mean for London's infrastructure?
Bjarke Ingels Group announced as winners of design competition for new residential landmark in Amsterdam.
Designing Buildings Wiki has reviewed a well-designed and researched set of architecture city maps.
Designing Buildings Wiki attended the second annual Building Live conference, tackling the challenges facing construction.