Types of Pressure Transducer

Article Published: December 22, 2021 1:09 PM
Last Updated: December 11, 2025 9:31 AM
Written by: Jack Carr

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What are the different types of pressure transducer?

Chemical Vapour Deposition

The Chemical Vapour Deposition method involves bonding a polysilicon layer to a stainless steel diaphragm. This is done at the molecular level to produce a sensor which then has a superior long term drift performance. Semiconductor manufacturing processess are used to create a polysilicon strain gauge bridge with superior performance at a very cost-effective price. Chemical Vapour Deposition units are the most popular sensor for OEM applications construction as they can offer excellent price and performance.

Take a look at our best-selling CVD pressure transducer here.

Capacitance

The Capacitance Type is used for a large variety of high volume OEM bespoke applications. Measuring capacitance change between two surfaces allows for transducers to detect very low pressure and vacuum levels. Their extremely robust construction lets capacitance units to be used in a huge range of applications. They offer great price and performance benefits.

Take a look at our best-selling capacitance pressure transducer here.

Sputtered Thin Film

Sputtered film deposition creates transducers with maximum combined linearity, hysteresis and repeatability. These types of units allow for extremely high full scale accuracy and very low long term drift. Accuracy is as high as 0.08% full scale with long term drift as low as 0.06% full scale per year. They are most commonly used in critical applications where precision is a must-have.

Take a look at our top sputtered film pressure transducer here. 

Micromachined Silicon (MMS)

MMS transducers use micromachined silicon (MMS) diaphragms to sense pressure changes. The silicon diaphragm is protected from the process media by an oil-filled 316SS isolation diaphragm. MMS transducers are manufactured through common semiconductor techniques. These units off a great proof pressure, linearity and stability.

Take a look at our MMS pressure transducer here. 

Examples of Pressure Transducer Applications and Industries:

• Test & Measurement
• Gas Compressors
• HVAC Systems
• Medical Instrumentation
• Weighing Systems
• Silicon Wafer Manufacturing
• Tanks & Vessels
• Automated Manufacturing Equipment
• Wind Tunnels

For technical support on your application, get in touch with us today.

Meet the Author

Jack Carr

Technical Sales & Marketing Manager, Boiswood

Jack combines deep technical expertise with hands-on experience in pressure and flow control systems. With a strong focus on real-world applications, he works closely with customers to understand their challenges and deliver fit-for-purpose solutions. His practical approach and in-depth product knowledge ensure every recommendation is accurate, efficient, and built around performance.

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