A differential pressure sensor is a handy tool for measuring the difference between two different pressures. One pressure is connected to each side of this type of sensor. These sensors have a wide variety of industrial applications.
Differential Pressure Sensor
This pressure sensor is used to measure a wide variety of properties, including pressure drops across air filters or oil filters, flow rates or fluid levels. A pressure drop across a fluid level is measured via comparing the pressure below and above the liquid; meanwhile, the drop across a flow rate is measured by determining the pressure change across a restriction.
Applications
One of the most valuable uses for differential pressure sensors is to measure engine coolant flow or intake airflow. It is beneficial to use differential pressure sensors to complete measurement rather than a couple of gage sensors because accuracy will always be specified as a particular percentage of the full-scale reading of the sensor. With these types of sensors, the full-scale reading will be a lot smaller, thus decreasing measurement error.
You can also use these sensors for measuring dry airflow when you are testing an engine-block oil port. The back pressure can easily be correlated with the crankshaft position to locate any missing main bearings as well as oil cavities that are plugged.
Differential pressure sensors can also be used as gage sensors inside closed test chambers; you have to vent the negative or low-pressure port to the area outside of the chamber instead of venting it inside of the chamber, where you may find a variable or different ambient pressure. An enormous benefit of these sensors is they offer reliable operation and environmental protection due to their wet/wet characteristics.
Features
Some of the best differential pressure sensors on the market are designed for very low differential pressure measurements for original equipment manufacturer applications that are cost sensitive. You can easily use them for measuring gases’ and air’s extremely low flow rates for gaging as well as HVAC applications. These types of sensors may furthermore be used to detect small leaks.
A reputable provider of pressure sensors can provide you with a compact differential pressure sensor that will help you quickly and efficiently complete your particular industrial task.
