Category Archives: Pressure Gauges

About Pressure Transducer

A pressure transducer is used to convert a certain value of pressure into its corresponding mechanical or electrical output. Measurement if pressure is of considerable importance in process industries. Types The types of pressure sensors are differentiated according to the amount of differential pressure they are able to measure. For low differential pressure measurement Liquid Column Manometers are used. Elastic type pressure… Read More »

About Vacuum Gauges?

For pressure measurement below atmosphere or vacuum, different gauges are available. Manometers and bell gauges can go up to 0.1 Torr. Diaphragm gauges are usable up to a pressure of 10-3 Torr. For pressure below this value, electrical gauges like Pirani or Ionization Gauges are used. Vacuum measurement is broadly classified into Mechanical Type, Thermal Type, Ionization Type, and Radiation Vacuum Gauge. A standard… Read More »

Differential Pressure Gauge

What is Differential Pressure Gauge? Differential Pressure– It is slightly different than gauge or absolute pressure because it measures the difference between two medias. A true differential pressure sensor is used to measure the difference between two separate areas. For instance, the differential pressure is used to check the pressure drop from one object to another. 2

Absolute Pressure Gauge

Absolute Pressure– This is a combination of gauge pressure of the media with the pressure of the atmosphere. When the location changes, say as per the change of altitude, the atmospheric pressure also changes which compel the reference point to differ as well. If an absolute pressure sensor is used for eliminating the reference of varying atmospheric pressure.… Read More »

How differential pressure gauges influence the success of process control applications with many measurement variables.

In the world of process control there are many measurement variables, generally falling under the categories of pressure, temperature, level, and flow. Instruments for measuring these variables allow system operators to monitor the condition and movement of liquids and gases. Differential-pressure gauges are widely recognized as the largest “specialty type” pressure gauge category. They are used in filtration,… Read More »

Pressure Measurement Devices

Gravitational transducers A dead weight tester Manometer Elastic transducers ( Force summing Transducers) Bourdon tube pressure gauge elastic diaphragm gauges bellow gagues Bellow gaugues to measure gauge pressure Bellow gauge to measure differential pressure Strain gauge pressure cells. Flattened tube pressure cell (PINCHED TUBE). Cylindrical type pressure cell. Mcleod vacuum gague. Thermal conductivity gauges. Pirani gauge. Thermocouple typre… Read More »

Terms related to pressure

Atmospheric pressure: The pressure due to air surrounding the earths surface is called as atmosperic pressure. Absoulte pressure: It is known that pressure is force per unit area when the interaction of fluid particles among themselves is zero, a zero pressure intensity will occur. This is possible only when the population of molecules is negligibly small which is… Read More »

Introduction to pressure measurement

It is time to know about pressure measurement.. In general, pressure is represented as force per unit area. The measurement of pressure is one of the most important measurements, as it is used in almost all industries. Some important appilications of pressure measurement is listed. 1. The pressure of steam in a bolier is measured for ensuring safe… Read More »

Pressure Gauge Calibration

Before getting into the intricacies of pressure gauge calibration it’s really important to know what calibration means. Do you know what calibration is? Well, calibration is a process of determining equipment’s measuring accuracy. The process involves obtaining a reading from the instrument and measuring its variation from the reading obtained from a standard instrument. Calibration of several instruments… Read More »