Saelig Introduces Sensor for Low-Cost Automotive Detection Systems

By DE Editors

Saelig has released the PS25203 EPIC Sensor (Electric Potential Integrated Circuit) for contactless ECG and movement sensing in automotive applications, including driver fatigue monitoring and seat occupancy. The EPIC sensor can rapidly measure electric potential sources such as electrophysiological signals or spatial electric fields.

It can be used as a dry contact ECG sensor without the need for potentially dangerous low impedance circuits across the heart. By detecting changes in the electric field, the EPIC sensor can also drive a relay to act as a simple, non-touch electric switch. According to the company, it can be employed in a proximity mode or to detect specific kinds of movement as a gesture recognition device.

According to Saelig, potential applications include: driver monitoring for health and alertness by detecting heart rate and respiration; determining car occupancy to adjust the ride, handling and air bag deployment depending on the size and location of occupants. By adjusting the DSP and amplification circuitry, the sensors can be tuned for detection at a distance as required for differing automotive applications. EPIC sensor electrodes can be easily and discretely incorporated inside car seat backs to acquire the necessary biometric data.

PS25203 EPIC sensors are in commercial production now in a custom, 4-pin PCB hybrid package measuring 10.5mm x 10.5mm x 3.45mm.

For more information, visit Saelig.

Sources: Press materials received from the company and additional information gleaned from the company's website.