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wireless fuel level gauge
Cars are one of our favorite means of transportation in our daily life. The fuel gauge is used to indicate the amount of fuel in the vehicle fuel tank. It may be a needle or a digital display. The fuel gauge consists of a fuel level indicator with a pressure regulator and a fuel level sensor. The function of the low fuel level alarm device is to give an alarm immediately when the amount of fuel in the fuel tank of the burning vehicle is lower than a specified value so that the driver can pay attention. Of course, the fuel gauge can also be wireless and work through the fuel sensor
There are two kinds of fuel level sensors: one is to use the sliding potentiometer as the basic detection element, drive the potentiometer with a float, and then check its resistance value with an ohmmeter to achieve the purpose of displaying the fuel level. However, after the potentiometer is coated with grease, its resistance value will change, resulting in excessive error or even failure to use, which makes this type of fuel tank sensor a vulnerable part with short service life. The other is to use an inductive cfuel as a basic detection element. It uses the float to drive the inductance cfuel to change the oscillation frequency of the vibration circuit, and then checks its frequency through the frequency meter to measure the fuel level. But its structure is complex, debugging is troublesome, the cost is high, the price is expensive, and it cannot be widely used. The new fuel level sensor produced by reed switch has long service life, safe and reliable response and no spark. It is an excellent substitute for various fuel level sensors used in vehicles at present. It can be divided into the following categories: fuel tank level sensor
Principle a: the magnetic field generated by the ferrite magnet is used to control the on-off of the reed. The change of the measured fuel level is converted into a resistance voltage signal output, which is connected with the secondary instrument to check the sensor of the fuel level height of the fuel tank. With its outstanding features such as high inspection accuracy, safety and reliability, long service life, maintenance free and easy installation, this type of product has become an excellent substitute for the fuel level sensor of various vehicle fuel tanks. B typical application: fuel level measurement of various vehicle fuel tanks, industrial inspection of various liquids C Technical specification range: the signal output form can be customized according to the different needs of the user's fuel tank: resistance output, Voltage output inspection sensitivity: 2mm 30mm optional display mode: pointer instrument or digital instrument overall structure
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