Environmental protection and practical hydrogen sensor

Product description

Hydrogen pressure sensor is used in fuel cells, oil refineries, glass purification, semiconductor manufacturing, aerospace applications, chemical fertilizer production, welding, annealing, metal heat treatment, Chinese and Western medicine, etc., there are many kinds of hydrogen pressure sensor, the common hydrogen pressure sensor principle is metal oxide semiconductor, catalyst beads, thermal conductivity, electrochemistry and sound wave. The hydrogen pressure sensor is composed of a sensor resistance body on which a metal oxide layer is stacked. The heater resistor heats the hydrogen pressure sensor to its operating temperature. The resistance of the metal oxide layer varies according to temperature and the amount of hydrogen in the surrounding air. There are some problems such as selectivity, stability, insufficient sensitivity and long response time. It consists of two beads that surround wires that operate at high temperatures (450 degrees Celsius). As a background reference, a head was passivated without the addition of a catalyst, avoiding the reaction in contact with hydrogen molecules. The other ball is coated with a catalyst to promote the reaction with the gas. Specializing in the production of hydrogen energy pressure transmitter.