Occasionally we get asked if liquids can be used in place of air in our dashpots. Let’s talk about some of the issues. Because liquids are essentially incompressible, a liquid-filled dashpot wouldn’t suffer from the “air spring” effect that all air-filled dashpots have. This “air spring” is usually undesirable as it reduces the damping at [...]
Application Notes: Airpot in Membrane Switch Testing An air cylinder that uses a carbon /graphite piston within a glass housing produces precise and repeatable motion during membrane switch testing. A precision low friction cylinder with a piston that slides on a cushion of air is being used to provide reciprocating motion in membrane switch test […]
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