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Pressure Measurement

P55 Pressure Transducer Handbook Now Available

The P55 Pressure Transducer Handbook is a complete one-stop source of information on the Validyne P55 pressure transducer in a single pdf file. Here is the Table of Contents: P55 Data… Read More

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Pressure Measurement, University

Pressure Transducer Readings on the Internet – IoT Pressure Transducer

Introduction: The SI314 is a network interface for the P61 series of Validyne pressure transducers bringing internet connectivity to pressure measurement. The SI314 allows the user to view pressure readings from… Read More

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Pressure Measurement

Absolute or Gage Sensor – Which is Best to measure Absolute Pressure?

If you want to make an absolute pressure measurement, you have two choices of sensor type.  The first and most obvious choice is to specify an absolute pressure transducer.  Another… Read More

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Pressure Measurement, Utility

Understanding Digital Displays

Digital display specifications can be confusing. Here is a short application note that describes the terminology and capabilities of a digital display. Digital displays are specified as being either 3-1/2… Read More

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Pressure Measurement, Utility

Furnace Draft Measurement

Introduction: One of the most difficult process measurements to make accurately is furnace draft pressure. This is the pressure inside the furnace that optimizes the air/fuel mixture for the most… Read More

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Data Acquisition, University

Connecting Strain Gages to the USB2250, Part II

The quarter-bridge strain gage configuration can be improved upon to increase the output signal into the USB2250 by adding another strain gage to the system. For the previous example, the… Read More

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Data Acquisition, University

Connecting Strain Gages to the USB2250

Strain gages are sensors that change in resistance proportional to the strain of the item to which they are affixed. Strain gages can also measure the stress at the points… Read More

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Pressure Measurement

What is the Meaning of Signal Output in mV/V?

Validyne variable reluctance sensors such as the DP15 Pressure Sensor, DP103 Low Pressure Sensor, DP360 High Pressure Sensor, etc all have signal output(s) specified in ‘millivolts per volt’ or mV/V. What does this… Read More

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Pressure Measurement

Basics of Validyne Pressure Sensor Calibration

A pressure sensor is a device that changes pressure into an electrical signal. That electrical signal is only useful if it accurately represents the pressure applied to the sensor. Calibration… Read More

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Carrier Demodulator, Pressure Measurement

Selecting the Best Validyne Carrier Demodulator

Carrier Demodulator A carrier demodulator is the electronics that supports a variable reluctance pressure transducer. A carrier demodulator provides power to the transducer, provides calibration adjustments, receives the AC sensor signal and… Read More