Pressures sensors help you measure and control the pressure of industrial processes. Here we have discussed a few important features and aspects of pressure sensors.

What functions does a pressure sensor perform?

Pressure sensors are used to monitor applied pressure. They are basically used to keep a check on the internal pressure of gases and liquids in a specific application. If a particular pressure quantity exceeds normal and safe limits of pressure then the pressure sensor will detect this. The same happens if the pressure required for an industrial process suddenly drops. The machinery can be shut down and accidents and damages can be avoided.

What are they used for?

Pressures sensors are used in a wide variety of industrial applications. They are used for the measurement of heights, depths, sea levels, speed of flow of a substance in and the internal pressure of liquids or gases in a machine.

You must remember that pressure sensing technology varies depending on the industry.

What are the different types of pressure sensors?

There are a wide range pressure sensors available and their use will depend on the specification and application in which they are used. The five main types of pressure sensors are gauge pressure sensors, sealed pressure sensors, absolute pressure sensors, vacuum sensors and differential pressure sensors.

Pressure sensors are widely used in manufacturing plants today. The term pressure is a standard expression of the overall force needed to prevent a fluid or gas from expanding.

Pressure sensors are devices which perform as transducers and produce a signal as the function of the overall pressure imposed. A pressure sensor thus emits a signal as a function of the pressure exerted.

Pressure sensors are basically used to control and track the functions of everyday electrical applications in which pressure levels need to be monitored. They can also be employed to measure other variables which are subject to change. Some of the variables which can be measured by pressure sensors include speed, water and level.

The origin and function of pressure sensors

The steam age resulted into the need for pressure gauging instruments. Bourdon tubes were the first type of pressure measuring instruments used. And these instruments are still used in some manufacturing plants today.
The transducing pressure which is monitored by a sensor is converted into an electrical quantity. Usually a diaphragm construction is employed in the device which consists of a strain gauge. This causes the resistive value to alter and thus the electrical signal level to change.

Wireless pressure sensors are really useful in many different industries. They are used to keep a check on the pressure that machinery operates at. And, they are also used in process control applications.

The uses of wireless pressure sensors

Wireless pressure sensors prove to be very useful as they can be utilised to control various types of equipment without the need for connecting wires. A common type of design for a wireless pressure sensor can be seen in the case of the Keller wireless pressure sensor. It is based on the piezoresistance principle. In this type of sensor, the pressure that is exerted is directly proportional to the material’s resistance.

Being wireless, these pressure sensors find varied uses and are very beneficial in different industrial environments. The benefits of wireless pressure sensors can be seen in circuit integration, transducer miniaturisation, improvement of signal to noise ratio, multi point sensing, and easy networking.

Wireless pressure sensor applications

Networks of wireless pressure sensors can be incorporated in manufacturing processes to check the various process variables during the production of products such as petroleum. During the manufacturing process, pressure sensors can monitor process variables.

The functional possibilities of pressure sensors are many. However they tend to be used in environments such as the chemical industry where large industrial machines are used. Other industries that use pressure sensors include the beverage industry, food industry, and pulp and paper industries.

Pressure sensors are known for their ability to gauge pressure applied in industrial components. Pressure sensors are in fact best described as life-saving devices which curb industrial accidents and tragedies.

Given below are some ways in which pressure sensors can save lives in industry:

Monitors the applied pressure

This is the main purpose of using pressure sensors. They can keep a track of the applied pressure of variables like gases and liquids. These devices initiate an alarm whenever the pressure exceeds a specific limit. It also sounds off an alarm whenever the pressure applied is less than required. The workers can thus take the necessary steps to adjust the applied pressure.

Curb accidents

Pressure sensors also curb accidents via its pressure-sensing mechanism. Excessive application of pressure or application of pressure less than required can affect the functioning of the components. This eventually results in a major explosion which can endanger the lives of all the workers. An explosion of this magnitude and scale will cause irreparable financial losses. Pressure sensors can prevent such tragedies by sounding off a loud alarm.

Different applications

Pressure sensors are used in many different applications, both domestic as well as industrial. They are used in airplanes and automobiles. Pressure sensors can also be modified depending upon the technology and use. Consumers can thus use a sensor depending upon their requirements. Moreover, the advantages of pressure sensors surely outweigh the expenses.

Pressure sensors are thus a boon to industrial workers. Research the market carefully and opt for the right kind of pressure sensors.

The pressure of gases and liquids are measured by pressure sensing technology. The physical property which controls the expansion of liquids is called pressure. Pressure is usually measured in force applied per unit of area. Once the pressure is measured it is converted into an electrical signal. This signal is then a function of the imposed pressure level. Industrial processes become more streamlined by using pressure sensors. Pressure sensing technology plays a vital role in ensuring that the safety levels of industrial processes is maintained.

The different types of pressure measurements

Pressure is usually measured in pounds per square inch absolute which is also known as PSIA in industrial terms. The pressure between two points when measured is called differential pressure measurement. This is taken in the measurement of pounds per square inch differential; commonly known as PSID. Gauge pressure is measured in comparison to ambient pressure. One such example is the measurement of blood pressure. The measurement unit for this pressure is per square inch gauge, which is industrially known as PSIG.

Measurement of absolute pressure is done in a vacuum. The manifold vacuum intake in vehicle engines is a type of vacuum gauge pressure measurement.

Mechanical parts such as shells, plates, tubes are constructed and manufactured in such a way that they will deflect when subjected to pressure. This forms the base level mechanism for pressure sensing which is converted into an electrical signal by a pressure transducer.

Pressure sensors are widely used in industrial processes and occupy a position of crucial importance in production and manufacturing.

Pressure sensors are commonly used in many industrial manufacturing plants these days. They are used to alert a system whenever there is a rise or decrease in the level of pressure in a machine or other device. Considerable changes in pressure levels can otherwise lead to the breakdown of machinery or other untoward incident.

Pressure sensors are thus an essential component that can influence the smooth functioning of the manufacturing or industrial process.

Pressure sensors are basically used to measure or detect the pressure of liquids or gases whenever they expand or contract. The pressure sensing device provides a reading of the overall pressure applied. In this case the sensor performs the role of a transducer and emits an electrical signal.

Different types of transducers are used on a daily basis in various applications. Manufacturers also produce different types of pressure sensors to meet specific industry needs.

Applications

Pressure sensors are used in the following applications:

• Weather measuring devices
• Car instrumentation
• Aircraft electronics

New models of pressure sensors are being produced constantly. For instance, pressure sensors are now also used to measure blood pressure. Thus, pressure sensors have a major role to play in many applications.

Pressure sensors are an integral part of industrial processes nowadays. However, most people are unaware about the main features and uses of these devices.

Pressure sensors are now used in industrial and domestic applications.

Types of pressure sensors

Pressure sensors use different methods to measure pressure some of which are as follows:

• Fibre optics
• Variable capacitance

Some of the other methods include mechanical deflection and semi-conductor piezoresistive. Quartz is another commonly used material in the production of pressure sensors.

What are pressure sensors used for?

Pressure sensors are used to check the pressure level of a particular device. Sometimes some pressure sensor models are used to gather data. The collected data can then be used later to analyse these pressure levels.

Household applications

Pressure sensors are also used in different household applications. They can be found in different products which are used on a day-to-day basis. For example, pressure sensors are used in car alarms. Car alarms inform the driver when the doors have been opened when the security system is in use.

Pressure sensors are one of the modern devices which have helped the manufacturing industry immensely. A pressure sensor, as the name suggests, is used to measure the overall pressure of any device. Pressure is a common unit of measurement which is usually stated in terms of force per unit area.

Measures variables

Pressure sensors usually perform the task of a transducer and produce a signal in the form of a function. This signal is usually an electric signal. These devices are commonly used in manufacturing plants to track the functioning of various devices or applications. They are used to measure different variables such as speed and water level. Pressure sensors are also known as pressure transmitters, senders and manometers.

Variations on the basis of design and application

These devices have undergone a tremendous change over the years. They vary on the basis of the overall design, application and cost. According to reports, around 300 companies across the globe produce pressure sensors. This is evidence to the growing popularity and use of pressure sensors.

Pressure sensors can be classified into many different categories. For instance, some pressure sensor models are specially designed to measure pressure in a dynamic mode. These pressure sensors can monitor the pressure changes accurately. For instance, pressure sensors are used to measure the combustion pressure in any engine cylinder. They are also used in gas turbines. This particular sensor is made up of a distinct piezoelectric material: quartz.

Therefore, pressure sensors can meet the requirements of different consumers.