COMPLEX SENSOR FOR MEASURING DENSITY OF INFLAMMABLE GAS

The complex sensor has an opaque and permeable metallic hood, a luminous component, an infrared receiver, and an arc-proof plastic support. It features that in the hood, the oppositely or obliquely placed luminous component and infrared receiver are connected separately to the conducting pins on the support, and to the other end of pins lead-out wires are soldered. The infrared receiver senses the direct, reflected or refracted infrared light from the luminous component and thus transfer the signals of inflammable air density. The present sensor is sensitive, drift-less and reliable and can meet the needs of third-grade antidetonation.