Sensors are currently being used extensively in a number of important applications, such as monitoring infrastructure such as buildings or bridges, or key technologies such as gadgets to assist the hearing impaired.
But due to the need for a constant power supply in these sensors, they rely on batteries that need to be replaced regularly, leading to massive accumulation of electrical waste.
According to a European Union study, by 2025, 7.8 million batteries will be thrown into the garbage every day. These batteries are made of materials that can be difficult to collect and dispose of.
Recently, scientists from Switzerland have claimed to have developed a sensor that has the ability to eliminate the jitters of batteries.
In a recent study at ETH Zurich, researchers say they have created a mechanical sensor that requires no energy to operate and might help reduce battery waste.
Johan Robertson, one of the leaders of the research, said that the sensor uses the vibrational energy contained in sound waves.
This sensor is able to process specific sound (pronunciation of a specific word or production of a specific sound). A specific set of sound waves causes the sensor to vibrate, which means the sensor has been activated.
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2024-05-02 15:45:15
