Important Reasons To Choose Ceramic Pressure Transmitters
From: Issued date 2024.11.27 Back
Ceramic piezoresistive, ceramic as a carrier have ceramic capacitor and ceramic piezoresistive, ceramic piezoresistive 100kPa below and 10MPa above are not suitable for pressure transmitter.
The basic principle of ceramic piezoresistive is to use Wheatstone bridge, and silicon piezoresistive is the same principle, by the external pressure, the strain produces a change in the resistance of the bridge.
Vector | Strain Material | Key Changes | Magnitude Of Change | Framework | Drawbacks | Vantage |
Ceramics | Thick Film Paste | Length Dimension | Few | Simpler | Moisture Absorption, Fragile, Low Precision, Low Sensitivity | Simple Structure |
Silicon | Diffused Silicon | Resistivity | Wide | Filled with Oil | Large Temperature Drift And Complex Structure | Wide Range, High Accuracy, High Sensitivity, Weldable |
In conclusion, the performance of the ceramic-based, oil-filled WT sensor is impressive. It offers a wide pressure range from -100 kPa to 100 MPa, compared to the narrower range of 100 kPa to 10 MPa typically achievable by ceramic sensors. Additionally, it provides high precision with an accuracy of 0.25 to 0.5%, while ceramic sensors generally have an accuracy of around 1%. The sensor also demonstrates high sensitivity, can be welded for various applications, and does not absorb moisture, making it highly reliable and durable.
This article Tags: pressure sensor pressure transmitter
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