What is a hydrogen sensor?
The hydrogen sensor is a device that can detect the presence of hydrogen gas. Since hydrogen naturally occurs in extremely small amounts in the atmosphere, approximately 0.00005% according to the volume are designed to detect the amount that could be considered dangerous. The gas detector for hydrogen monitoring is most often used to detect leaks of this gas from closed systems. Hydrogen sensors also find a niche in a new but growing hydrogen fuel cell industry.
Numerous hydrogen design technologies are used today. Most of them use the fact that hydrogen is quite active chemically. For example, one type of sensor uses Palladium. When Palladium comes into contact with hydrogen atoms, they spontaneously form a compound called Palladium Hydride, which is less conductive than pure metal. Measurement of changes in the conductivity of palladium in the sensor can calculate the concentration of hydrogen in the air. Advanced hydrogen sensors can be very small, wirujey dimensions measuredIn millimeters or thumb fractions, and can detect hydrogen gas concentrations up to 5 parts per million (PPM) in seconds.
hydrogen is potentially dangerous. It can be flammable and even explosive at concentrations above 40,000 ppm. The famous explosion and burning of Hindenburg in 1937 illustrated how dangerous this gas could be. The large airship, full of hydrogen gas, set fire and exploded and came across the ground, resulting in 36 deaths. The fame of this accident caused the airship to fall out of kindness as a transport. The need for hydrogen sensors as a safety measure was observed as a result of this and other accidents including fires and explosions.
In 2011, the hydrogen sensor will probably be used in one of the three applications. Portable hydrogen sensors are gas detectors that inspectors or technicians can use to record a check of any lining that holds, transmits or uses hydrogen gasn for leaks. These sensors, which are usually small, manual units, can only be created for hydrogen detection or can be multip-planted detectors capable of detecting several types of gases depending on the settings.
The static hydrogen sensor is likely to be placed in a building or other enclosed space. This type of hydrogen sensor works in the same way as a manual unit, but is associated with some type of monitoring system that can include alarms. In these applications, hydrogen sensors are used to detect gas accumulation above normal atmospheric levels before it becomes dangerous.
Rally fuel cells are an developing technological field that basically uses hydrogen as fuel. Under controlled conditions, hydrogen provides a large amount of energy when burning and is the final green fuel because the by -product of hydrogen combustion is clean water. Many companies work on vehicles that use these cells for energy. Huniky yDrogen can also be dangerous in fuel cells and hydrogen sensors are installed in any vehicle, machine or device that uses hydrogen fuel cell for power.