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Setra Blog

April 28, 2015

What is a Strain Gauge Pressure Transducer?

Thin Film Technology Strain Gauge

Thin film pressure transducers are made by vapor deposition or sputtering of insulation and strain gauge elements directly on a polished pressure sensing diaphragm or beam. The desired strain gauge pattern is deposited either by masking the non-conductive areas or by etching away unwanted conductive material. Laser trimming is used to calibrate the resistive elements.

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April 23, 2015

Technical Specifications of a Pressure Transducer

Many of the following technical specifications appear on datasheets for pressure transducers and similar devices. Here we review their technical definitions and relationships.

Root Sum Squares (RSS): accuracy of a pressure transducer is calculated by taking the square root of non-linearity + hysteresis + non-repeatability.

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January 05, 2015

Industrial Pressure Sensors in Harsh Environments

Industrial Pressure Sensors in Gauge, Absolute and Sealed Gauge Ranges

System designers are usually aware of the specific differences between these types of pressure measurements. The pressure of interest is being measured relative to ambient barometric, full vacuum, or a sealed reference chamber, respectively.

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October 14, 2014

Top 5 Considerations For Selecting a Pressure Transducer

Industrial pressure transducers are used in a wide variety of applications ranging from HVAC/R compressors, refrigeration and variable speed pumps to hydraulic pressure, oil and water. A transducer can be used anywhere there's a pipeline or chamber, its function is to sense and convert pressures into a proportional electrical output signal that is transmitted to monitoring or control system.

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September 10, 2014

Just In: New Techniques For Pressure Testing

With different equipment comes different air pressure testing techniques for measurement. But are you sure if your procedures up to date? This article breaks down specifically what methods need to be implemented for different scenarios. These new steps in calculating

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August 19, 2014

Setra's Industrial Webinars and Industrial/HVAC Videos on Demand

Setra's educational webinars and videos on demand provide helpful information on applications, industry best practices and more. These webinars and videos are just a few of Setra's readily available resources for technical info.

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July 14, 2014

Setra's NEW Industrial Catalog

Setra's NEW Industrial Catalog

The new 2014 Industrial Product Catalog is a comprehensive guide that contains the technical data sheets for products commonly used in Industrial applications.

  • Section 1.1: General Purpose OEM
  • Section 2.1: Test & Measurement
  • Section 3.1: Sanitary Pressure
  • Section 4.1: Accelerometer
  • Section 5.1: Barometric Pressure
  • Section 6.1: Very Low Differential Pressure
  • Section 7.1: Power Monitoring
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June 17, 2014

Setra's Pressure Transducer Handbook

The sensing and measurement of physical quantities through small changes in electrical capacitance is scarcely a new concept. The natural benefits of this approach were recognized for many years. But it was not until Setra engineers introduced new materials, new designs, and innovative, dedicated circuitry that the techniques full potential was realized in the practical, real world of pressure measurement.

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April 24, 2014

Setra’s Pressure Transducer Customization Process

Here at Setra we realize that each customer is unique and every application has different requirements that necessitate different features in a pressure sensor. We have the best interests of the customer in mind and realize we may not have the best sensor for a particular situation.

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July 24, 2013

How Do Shock & Vibration Affect a Pressure Transducer?

Shock & vibration are two potential mechanical problems for pressure transducers.

Shock is a sudden, unexpected impact that transmits energy to a device in a relatively short time interval. For a pressure transducer, that energy passes through the stainless steel up through the housing. Shock may originate from rough transportation and handling, such as by trucks, forklifts and conveyors. Alternately, shock can be caused simply by dropping the transducer on the shop floor or by an assembler slamming a cabinet door adjacent to it. A transducer may not be damaged by a single shock, but can experience fatigue failure with numerous low-level shocks over the course of its life.

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