Catalytic combustion sensors rely on the heat produced when a combustible gas burns on an oxidation catalyst. This method is ideal for detecting the lower explosive limit (LEL).
New Ceramic Catalytic Method
These sensors rely on detecting the heat produced when a combustible gas burns on an ultrafine particle oxidation catalyst. This method measures over a broad range from several thousand ppm to LEL.
Semiconductor Method
General-purpose semiconductor sensors detect all manner of toxic to combustible gases. The semiconductor method provides high sensitivity with high output within a low concentration range.
Hot-wire Type Semiconductor Method
High-sensitivity combustible gas sensors are ideal for detecting low-concentration gases. Low power consumption and compact dimensions also make it ideal for portable gas detectors.
Thermal Conductivity Method
Thermal conductivity sensors rely on differences in thermal conductivity to detect target gases. This method is ideal for detecting high-concentration gases (vol%).
Potentiostatic Electrolysis Method
Potentiostatic electrolysis sensors are capable of selectively detecting target gases. This method is ideal for detecting toxic gases.
Membrane-type Galvanic Cell Method
These sensors apply the galvanic cell principle to detect oxygen. This method does not require an external power supply and offers outstanding consistency in performance over the long term.
Non-dispersive Infrared Method
These optical sensors rely on unique infrared absorbing characteristics of target gases for excellent consistency in performance over a long period of time.
Interferometer Method
These optical sensors offer accuracy and outstanding long-term consistency. Interferometric censors also have an extensive history as key products within Riken Keiki’s longstanding history.
Chemical Tape Method
The chemical tape detection method uses a cellulose tape impregnated with a color former to detect gases based on the tape color caused by a chemical reaction.
IMS Method
The IMS method relies on the size, weight and other characteristics of a swarm of gaseous ions in an electrical field with ionized particles for measurement to identify each type of gas by the speed of movement.
