Oxygen Sensor Technologies
With its NTK oxygen sensors launched in the 1980s, NGK SPARK PLUG was among the pioneers in this field. Since then, the reduction of harmful emissions has made significant advances, not least thanks to the development of innovative technologies and extensive research.
Today, highly efficient ceramic heaters in lambda sensors ensure, for example, that the sensors start measuring sooner and respond faster. To achieve more accurate measurements in order to meet the ever more stringent Euro standards, huge efforts are being made in the continuous improvement of the ceramic components. In addition, a variety of sensor types have been developed catering to specific applications. They include broadband sensors and lambda sensors whose electric resistance changes depending on the air-fuel ratio.