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fuel level sensor example
The fuel level sensor has incredible resolution and amazing measurement accuracy. For example, a 0.5-meter-long sensor can measure water with a resolution of 1 / 100000 and oil with a resolution of 1 / 20000. Its accuracy can reach more than one thousandth (nominal 0.5%). Such resolution and measurement accuracy can not be compared with any sensor in China, which fully meets the measurement level standard .
The fuel level sensor , anti adhesion, anti hanging , anti foam interference, not only suitable for the measurement of oil products, but also suitable for the accurate measurement of various chemical reagents, beer and other liquids . The shell is made of all metal materials. The whole machine has a solid structure, is not afraid of falling from high altitude, is resistant to falling and vibration, and has the advantages that liquid level meters such as magnetostrictive and dry reed cannot compete with . The power supply voltage range is ultra wide, and it can work for a long time in the DC voltage range of 10-80v; Ultra low power consumption. When powered by 12V, the power consumption of the whole machine is only 60 MW , which is only 1/30 of that of the traditional automobile oil level sensor . The anti-interference ability is very strong, and it can withstand the interference of 20000 V high-voltage spark for 30 seconds . The frequency converter, high-power radio and other strong interference equipment measure the results .
Using the sliding potentiometer as the basic detection element , it drives the potentiometer by the float , and then uses the ohmmeter to detect its resistance value , so as to achieve the purpose of displaying the oil level. However, when the oil dirt covers the potentiometer , its resistance value will change , resulting in too much error, or even can not be used , making this kind of oil tank sensor a vulnerable part with a very short service life .
If you want to ensure safety, it is best to use a non-contact ultrasonic oil level sensor , which only needs to be attached to the bottom of the oil tank without direct contact with the oil , and the installation is also simple and convenient . At present , the oil level sensor of the manufacturer (Nanjing Hemu International Trade Co., Ltd.) is widely used in this area.
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