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13827205356

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Engine ECU oil pressure sensor

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Product Introduction

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Measuring oil pressure, signal supply engine ECU
0.5-4.5V DC linear voltage signal output
Adjustable range, up to 1.5MPa
The electrical outlet is matched with the PACKARD or AMP module. The threaded connection can be made according to the customer's requirements


Definition:
The oil pressure sensor of the automobile is an important device for detecting the oil pressure of the vehicle engine, the detected data can help control the normal operation of the engine.
  classification:
Oil pressure sensor can be divided into two kinds of bimetallic and variable resistors.
Bimetal sheet composition:
Diaphragm, spring, bimetallic, adjusting gear, contact piece, sensor terminal, oil pressure gauge sensor terminal, pointer, etc.


working principle:
When the ignition switch is turned on, the current flows through the heating coil of the bimetal 4, the bimetal 4 is thermally deformed to separate the contacts; The bimetal 4 is then cooled and straightened, and the contacts are closed again. So repeated, the circuit to form a pulse current.
When the oil pressure is reduced, the sensor diaphragm 2 is small in deformation, the contact pressure is small,
Closed time is short, open a long time, low frequency of change, the average current in the circuit is small, the bimetallic sheet 11 has a small bending deformation, pointer yaw angle is small, pointing to low oil pressure; Conversely, when the oil pressure increases, the pointer yaw angle is large, pointing to high oil pressure.
Variable resistivity:
Resistance strain gauge, strain bridge, coil, ferromagnetic rotor, pointer, playing yellow film and so on

 
working principle:
When the base force when the resistance strain gauge changes, So that the strain gauge to prevent changes, So that the voltage applied to the resistor changes, But because of this change is very small, Also need to amplify the amplifier signal. When the oil pressure is lowered, the resistance value of the sensor 5 is increased, The current in the coil L1 is reduced, The current in the coil L2 is increased, The rotor 2 drives the pointer 3 to rotate counterclockwise with the direction of the synthetic magnetic field, Point to low oil pressure; when the oil pressure increases, The resistance value of the sensor 5 is reduced, The current in the coil L1 is increased, The current in the coil L2 is reduced, The rotor 2 drives the pointer 3 to rotate clockwise in the direction of the synthetic magnetic field, pointing to the high oil pressure.

Engine ECU oil pressure sensor

Order:Engine ECU oil pressure sensor

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