Based on PSoC Smart Sensor of gas leakage

This paper offers a new Smart Sensor of natural gas leak, which was realized on base of a new way of measurement, modern thin film MEMS (micro-electro-mechanical systems) structure and PSoC (programmable system on chip).The senor is a continuous operation device destined for gas leak detection and signal injection that is proportional to concentration of gas in air. If concentration is dangerous the sensor sends a message to the warning system. A gas sensitive element of the sensor is MEMS technology designed. The wireless interface is provided by a single-chip 2.4-GHz Direct Sequence Spread Spectrum (DSSS) Gaussian Frequency Shift Keying (GFSK) baseband modem that connects directly to a microcontroller PSoC via a simple serial peripheral interface. The modem supports a range of up to 50 meters. A generic aspect of the sensor is the physical principle of operation. It ensures high reliability and operating life of the device. The Sensor is made practically on one microcircuit with digital interface due to use PSoC. That has provided high accuracy and low prime cost of the device as a whole.