PS25012A1 Demo Board for PS25201 EPIC Contact Sensor

The PS25012A1 is a single channel application board for the demonstration of the Plessey PS25201A electric potential sensor.

The PS25201A electric potential sensors on these  boards allow the measurement of a wide range of electric potential sources from electrophysiological signals through to spatial electric field. The sensors incorporate a DC block feature that allows the DC component of an applied signal to be rejected while maintaining good low frequency response. The electrode surface of the detector is passivated with a thin dielectric that allows the direct application to a test surface. In the case of contact with skin there is no need for electrically conductive gel.

The PS25201A sensor demonstrated on these boards is an integrated assembly designed for surface mount assembly on a motherboard.

The application boards provide the regulated +2.5V and generated -2.5V supplies that are used to operate the sensor. This allows the boards to demonstrate the sensors from a wide, single sided, power supply voltage while the output of the sensor can cover the range ±2.1V. The boards are connected by a high reliability five pin connector.

Two single channel PS25012A1 boards or a dual channel PS25012B1 board may be used to generate a differential signal.

Applications

• Electrophysiological signal detection
• ECG/EOG/EMG/EEG,
• Electric field and potential sensing
• Movement sensing, etc.