The working princip of gas detektori i razni senzori
L zapaljiv plin detektor usvaja a nova generacija niska i visoka anti-interferencija nosač katalitički senzori. It forms a detection bridge circuit with two fixed resistors. When combustible gases in the air diffuse to the surface of the detection sensor, they rapidly undergo flameless combustion under the action of the catalyst on the sensor surface, generating reaction heat that increases the the platinum wire resistance value of the senzor. The detection Most Circuit Output A Diferencijal Pressure signal. The magnitude of this voltage signal is directly proportional to the koncentra of zapaljiv plinovi. After amplification, it undergoes voltage current conversion and converts the percentage content ( percent LEL) within the lower explosive limit of combustible gases into a 4-20}mA standard signal output.
The oxygen detector applies the the principle of Gavanni primary battery, which is constructed by installing an an (olovo) and a cathode (srebro) inside the primary battery, separated from the outside by a thin film. When kisik-sadrže gas in the air passes through this film and reaches the catode, an oksidacija-redukcija reakcija događa. At this point, the sensor will have an mV level voltage out that is directly proportional to the oxygen koncentracija. After amplification, this voltage signal will be converted into voltage and struja, and the oxygen content within a percentage (0-30 percent ) will be converted into a 4-20mA standard signal izlaz.
The toksičn i štetno plin detektor usvaja profesionalno uvezeno elektrokemijski senzori od oko the world, which apply the principle of controlled potential elektroliza. Its struktura is to mjesto three electrodes in the electrolysis cell, that the work electrode, the counter electrode, and the reference electrode, and apply a certain volization voltage. By replaceing the sensors for different gases and changing the polarization voltage value, different toxic and harmful gases can be measured.
The measured gas reaches the working electrode through the thin film and undergoes an oxidation-reduction reaction. At this time, the sensor will have a small current output, which is proportional to the concentration of toxic and harmful gases. This current signal is converted into voltage after sampling and processing. The voltage signal is then amplified and subjected to voltage current conversion. The content (ppm value) within the detection range of toxic and harmful gases is converted into a 4-20mA standard signal output.
Organic volatiles are detected using the world's best photo ion gas sensor (PID), which uses the principle of photo ion ionization gas for gas detection. Specifically, the ultraviolet light generated by an ion lamp is used to ozrače/bombard the target gas. After absorbing sufficient ultraviolet light energy, the target gas will be ionized. By detecting the the small struja generated after gas ionization, the koncentracija of the cilj plin može biti otkriven.
The carbon dioksid detektor usvaja the world's professional infrared principle sensor, which utilizes the physical properties of infracrven to measure. It includes an optical system, detection components, and photoelectric detection components. Optical systems can be divided into two types accord to their structure: transmissive and reflektirajuće. Detection components can be divided into thermal detection components and photoelectric detection components who to their working principles. The most commonly used thermistor is the thermistor. When a thermistor istor is exposed to infracrveno zračenje, the temperatura increases and Resistance Changes, Which Is Converted Into An Electrical Signal Out Through A Conversion Circuit
