Hot Wire Semiconductor Sensor

Hot Wire Semiconductor Sensor

          Detects resistance change across both edges of variation in thermal and electrical conductivity due to a gas absorbed on the platinum wire as a result of surface of a semiconductor.

Detection Principle

Features

• Sensitive and large variation in output at low gas concentration.
• Less initial stabilization time, more compact, more energy saving as compared with a semiconductor sensor.
• Long service life, high stability, and high durability.
• Selective sensitivity to gases（H₂, CH₄, C₂H₅OH）