Oxygen sensors detect the amount of oxygen in the exhaust. Oxygen sensors usually don’t have a replacement schedule. A bad oxygen sensor can be diagnosed with a code reader or scan tool. A car’s ...

Infrared spectroscopy (IR spectroscopy) is an optical technique that detects molecular bond vibrations and rotations upon absorption of infrared light. Because different chemical functional groups ...

Apart from this, the LTPO+ panel might also feature an under-display infrared (IR) sensor. This sensor has multiple uses on an iPhone, including for Face ID authentication. Its reported inclusion ...