Simple Software Turns Commercial Earphones Into Pulse-Detecting Devices

Simple Software Turns Commercial Earphones Into Pulse-Detecting Devices
technology

Wearable technology that measures pulse in the vacuum created inside ear canals.

Serena Chu
  • 28 october 2013

Researchers found a way to measure pulse waves using regular, commercially-available earphones. This new technique makes it possible to check pulse without using any other medical instruments.

headphone 2

Researchers found the seal made by earphones provides the perfect condition to measure pulse because it blocks out any sound wave disturbances, which reduces the room for error. Using earphones’ speaker as a detection device, the technology picks up pressure changes in the ear canal and interprets the movement to determine the pulse rate. By analyzing the tiny movements of the eardrum, the new technology enables researchers to further explore the practicality of wearable technology.

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