Setra Blog

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.

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.

Pounds per square inch (PSI) is a common unit of pressure used in many different pressure measuring applications. It’s typically used for non-SI industrial and technical purposes such as tire pressure, fuel storage & distribution, waste water management, and test & measurement activities, among many others.

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.

Rail Industry Cost and Energy Savings Found in Alternative Fuels

Locomotives have long been the lifeblood of commerce within a country. These massive machines transport everything from oil, food, clothes, large wind turbine parts, to people. These freight hauling giants require massive engines to make their cross country and regional trips in order to deliver products that consumers depend on every day. 

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.

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

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.

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

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.