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.
Pressure for an Uplifting Experience
When heavy objects need to be lifted, it is common practice to use hydraulic pressure to move them into place. Applications include trucks, diggers, dumpers, excavators, and bulldozers as well as hydraulic cranes. Cranes can lift shipping containers or heavy objects onto buildings or other places. Other applications include something as simple as lifting a garbage receptacle to dump its contents into a refuse truck – a semi-automated process. Of course, the amount of pressure available determines how much weight can be lifted. In some cases, the pressure could be perhaps 34.5 bar (500 PSI) or less. In other cases, it could exceed 689.5 bar (10,000 PSI).
Monitoring the pressure is part of the safety required to avoid accidents from lifting excessively heavy loads and exceeding the limits of the hydraulic system. It can also be helpful in identifying leaks in the system. However, it takes a special type of pressure sensor to be able to interface to the hydraulic fluid and withstand both the chemical and the temperature aspects of the application.
The common 1970’s pressure level of 150 bar (2,176 psi) has increased above 450 bar (6,527 psi) since 2010. Source: Hydraulics & Pneumatics.
A hydraulic truck crane that uses counterweights on the back of the cab to keep it from tipping over can have a counterweight gear pump that generates 96.5 bar (1,400 psi). This is much lower than the main pump pressure of 241 bar (3,500 psi).
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