How to Design a Pressure Gauge Comparator

Pressure gauge comparators are "smart" pressure gauges. They contain a small miniprocessor or chip containing information that allows the comparator to accurately control water or air pressure while measuring temperature or other attributes of liquid or air through a digital readout. Comparators are the next generation of pressure gauges and can be found on devices that require more in-depth readouts such as scientific instruments, airplane or automobile components, or machinery that controls high-pressure fluids or gases under extreme pressures.

Existing comparator gauge or plans
Computer with CAD program

Instructions

- 1
  Study an existing comparator, or existing plans. Find out what components you will need to build the comparator such as pressure valves, computer chips, solenoids, switches, fixtures, pipes, wiring and case.
- 2
  Measure all of the components included in the body of the comparator. Use a CAD program on a computer to find all of the parameters of all the components. Using the CAD program, layout the components inside the package or framework that makes up the case of the comparator.
- 3
  Order an interface for the package. An interface is the front of the gauge. Interface designs consist of all the buttons, the digital readout panel, and LED lights that indicate overloads or when the device needs attention. Contact a company that specialize in interface products; send them the package after you have drawn it out on the CAD program.
- 4
  Assemble all the parts including the interface inside the case for a prototype build and test.

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