Welcome to All Sensors “Put the Pressure on Us” blog. This blog brings out pressure sensor aspects in a variety of applications inspired by headlines, consumer and industry requirements, market research, government activities, and you.
Weighing a Pod with Pressure
In shipping operations, the weight of the load is important. The transporting vehicles have weight restrictions determined by the physical limitations of the truck and its engine. In addition, the transportation can be regulated by the state’s Department of Transportation (DOT). Federal laws regulate the weight of commercial vehicles on roads and bridges as well.
To easily measure the weight of a load, pressure measurements (in pounds per square inch (psi)) can easily be converted to pounds, especially where hydraulic cylinders lift the load. The area (A=πR2) of the piston in the cylinder (times the total number pistons performing the lifting) multiplied by the pressure reading provides the weight of the load (in pounds).
In many instances, analog gauges still provide the readout, since they are easy to read by an operator controlling the loading process. However, if the measurement needs to be communicated to a central system and coordinator in charge of managing the loading and shipping of many containers and vehicles, a digital microelectromechanical systems (MEMS) pressure sensor provides an easy-to-use digital alternative.
The vehicle operator sees a weight measurement but the gauge actually measures pressure.
Do you have a pressure sensing question? Let us know and we’ll address it in an upcoming blog.
Email us at [email protected]