What Are Pressure Transducers?

Pressure transducers—also known as pressure sensors or transmitters—are devices engineered to measure and display the pressure of fluid within a system. They play a vital role in many pieces of equipment that require precise pressure measurement to work effectively and/or efficiently, including aircraft, HVAC systems, and pumps. 

How Do Pressure Transducers Work?

These devices work by converting pressure into analog electrical signals. They first measure the pressure of the fluid using a force collector (e.g., a flexible diaphragm that deforms when it is pressurized). This pressure measurement is then converted into an electrical output signal by a transduction element that uses a dependent resistive, capacitive, or inductive mechanism (e.g., a strain gage). Since the signal generated is proportional to the pressure, relaying it to controllers or programmable logic controllers (PLCs) enables trained facility workers to evaluate if the pressure is within an acceptable range. 

There are many types of pressure transducers available. While basic models use strain gauges to measure the pressure acting upon them, advanced models use capacitance or piezoelectric sensors, which offer broader range, greater environmental suitability, and better precision. 

Creating Pressure Transducers Using Precision Dicing and Machining

Piezoelectric pressure transducers convert applied pressures to electrical signals using components made from quartz, ceramic, or other similar materials. The pieces must be carefully manufactured to work as intended. That’s why many industry professionals to the machining experts at Kadco Ceramics. We have the knowledge, skills, and tools to handle piezoelectrical materials and turn them into precision components, such as pressure transducers. 

Our piezoelectrical materials list includes: 

  • Berlinite
  • Cane sugar
  • Quartz
  • Rochelle salt 
  • Topaz
  • Tourmaline

Our machining capabilities include: 

  • Wafer dicing: a process used to separate small pieces of material—i.e., dice—from a semiconductor wafer
  • CNC milling: a process that utilizes computerized machines and tools to create the desired components by removing excess material from the workpiece
  • Core drilling: a process that removes a cylindrical core from the drilled hole
  • ID slicing: a process that produces repeated cuts on hard, brittle material
  • Surface grinding: a process that uses an abrasive disc or wheel to smooth and refine the surface of a material

Kadco Ceramics: Your Partner and Expert for Piezoelectric Pressure Transducers

Need piezoelectric pressure transducers? The piezoelectric machining experts at Kadco Ceramics are here to help! Our precision dicing and machining capabilities enable us to handle virtually any hard or soft material and turn it into a range of precision end products, including pressure transducers. To discuss your product specs with one of our representatives, contact us today. 

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