All posts by Validyne

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Oil & Gas, Pressure Measurement, Utility

Pressure Transmitter to Detect Burner Flame Instability

Large-scale industrial installations such as refineries and chemical plants often have large direct-fired heaters that are used in the processing of fluids and gases.  Such heaters must now be designed… Read More

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Automotive, University

Reducing Glove Box Filter Costs

The handling radioactive materials must be done in glove box. A glove box is a clear plastic enclosure with rubber gloves attached to the sides so that an operator can… Read More

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Aerospace, Military

Testing Helicopter Blades for Flex

Helicopters are a common sight in the sky and are used for many important tasks.  Rotors are used to provide lift and the large blades on these rotor assemblies often… Read More

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Aerospace, Automotive, Data Acquisition, Flight Testing, Pressure Measurement

Vehicle Hydraulic Brake System Testing

Automotive braking systems are obviously very important and must be thoroughly tested prior to production.  The force applied to the brake pedal by the driver must be sufficient to provide… Read More

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Automotive, Data Acquisition

DAQ Used in Climatic Wind Tunnel for Vehicle Testing

A new model automobile must be thoroughly tested in climate extremes before it is put into production. Will the heater keep the passengers warm in a blizzard? Will the cabin… Read More

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Aerospace, Flight Testing, Oil & Gas, Pressure Measurement, Utility

Tank Level Measurement

Introduction: Measuring the fluid level in tanks is a common requirement for almost every industrial process.  The automatic control of fluids depends on knowing how much liquid is stored in… Read More

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Aerospace, Flight Testing, Military, Pressure Measurement

Absolute Pressure Sensor or Gage Pressure Sensor?

An absolute pressure sensor measures the pressure relative to zero absolute pressure or a perfect vacuum. A gage pressure sensor measures the pressure relative to the normal atmospheric pressure. This… Read More

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Pressure Measurement

Estimating the Frequency Response of Variable Reluctance Pressure Sensors in Gas

Summary – Frequency response is defined as the ability of a measurement system to accurately reflect dynamic pressure changes. The measurement system consists of a pressure sensor and its associated electronics and… Read More

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medical, University

PS309 Used to Test CPAP Mask

Sleep apnea is common sleep disorder in which breathing repeatedly stops and starts. This is most commonly caused by the relaxing of throat muscles or, more rarely, when the brain… Read More

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Aerospace, Military

Pressure Measurements in Skydrol Hydraulic Systems

Skydrol is a phosphate ester hydraulic fluid used in aircraft.  Hydraulic systems in aircraft are most often used to position control surfaces and actuate the landing gear.  Broken hydraulic lines… Read More