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Wuxi Weifu High tech Group Co., Ltd
Rail Pressure Sensor
NegotiableUpdate on 12/01
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Overview
RailPressureSensor Parameters Power Supply Voltage: 5 ± 0
Product Details
Parameter Parameters
Supply voltage: 5 ± 0.25VDC
Working voltage：5±0.25VDC
Environmental temperature: -40 ℃~140 ℃
Ambient temperature range：-40℃～140℃
Measurement pressure range: 0-180MPa
Measuring pressure range：0～180MPa
Measurement accuracy: 0.7% FS to 2.5% FS
Measurement accuracy：0.7%FS～2.5%FS
Output voltage: 0.5-4.5VDC
Voltage output：0.5～4.5VDC
Sensitivity: 22.2mV/MPa
Sensitivity：22.2mV/MPa
Protection level: IP65
Protection grade：IP65
Application: Common rail system
Application: Common Rail System
Main features
The rail pressure sensor is used to accurately measure the pressure inside the common rail tube. The pressure is transmitted to the diaphragm through a blind hole, and the diaphragm deforms, causing a change in the resistance value of the silicon wafer on the diaphragm and a change in the voltage value of the bridge. Then, the chip adjusts and amplifies it to generate a linear voltage, which is fed back to the ECU. The pressure value is calculated based on the characteristic curve stored in the ECU.
Rail pressure sensor measures the fuel pressure in the common rail. As soon as the pressure travels through a blind hole to the membrane,it bends the membrane with a change of silicon slice resistance value and bridge voltage. The change is then amplified into linear voltage and reflected back to ECU. The final pressure value is calculated with a specially stored characteristic curve.
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