Plessey Semiconductors has announced the commercial availability of its EPIC (electric potential IC) sensors. The initial samples are optimised for use as an ECG (electrocardiogram) sensor. The sensor is offered in two formats. The PS25101 is available in the metal or plastic disc style, probe assembly and with a connecting lead and DIN plug termination. The PS25201 is a high impedance sensor supplied in a compact custom package with four exposed balls for surface mount assembly onto the PCB of an equipment design. It measures 10mm2 and 3mm high. The company says that EPIC sensors can be used to obtain true ECG signals by detecting the potential at surface of the skin that is typically 1mVpp. These sensors are designed for medical applications and, if required, can be built with an anodised titanium electrode. The company says that the sensors are dry contact so that no gels or similar fluids are required to make contact, they can be simply cleaned between uses, and only a pair of sensors are required, held in each hand. The sensors could be built into stretchers for monitoring of patients heart rate and respiratory action, or built into clothing to monitor stress levels in emergency response personnel, such as firemen, says the company.
