Need a certain type of meter - don't know the name - Help please

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SUMMARY

The discussion centers around the need for a meter to measure internal pressure on soft surfaces, specifically a durometer hardness tester. Users recommend calibrating the durometer for specific applications, as it provides a dimensionless quantity rather than a direct pressure measurement. The formula for calculating pressure, Force / Area = Pressure (lbs./square inch), is highlighted as essential for accurate readings. Additional resources for using durometers effectively, particularly on tires, are provided.

PREREQUISITES
  • Understanding of durometer hardness testers
  • Basic knowledge of pressure measurement concepts
  • Familiarity with calibration techniques for measuring tools
  • Mathematical skills for calculating pressure using Force and Area
NEXT STEPS
  • Research calibration methods for durometer hardness testers
  • Explore different types of durometers available on the market
  • Learn about pressure measurement techniques for soft surfaces
  • Investigate the application of durometers in automotive tire testing
USEFUL FOR

This discussion is beneficial for workshop tool developers, engineers, and hobbyists interested in measuring material hardness and internal pressure in soft surfaces.

icapture
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I am making a tool for my workshop and I need a meter that I can press onto certain soft surfaces to measure their internal pressure. Obviously I will have to calibrate the meter for my specific purposes but I want to buy some and start playing around with my idea.

Basically I need something that has a needle that gets pushed in with a certain amount of force and gives either a mechanical dialed readout or an electronic readout.

I know you guys can help me out!
 
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Sounds like you need a "durometer" hardness tester.
 
I would put it on a scale, you will know the force.
And: Force / Area = Pressure. (lbs. /square inch)
Measure and calculate the area.

A durometer produces a dimensionless quantity I believe, not a unit of pressure.
 
Last edited:
icapture said:
I am making a tool for my workshop and I need a meter that I can press onto certain soft surfaces to measure their internal pressure. Obviously I will have to calibrate the meter for my specific purposes but I want to buy some and start playing around with my idea.

Basically I need something that has a needle that gets pushed in with a certain amount of force and gives either a mechanical dialed readout or an electronic readout.

I know you guys can help me out!

There are some important tips on using a durometer on tires or other surfaces:

http://www.longacreracing.com/technical-articles.aspx?item=8167

:-)
 
icapture said:
I need a meter that I can press onto certain soft surfaces to measure their internal pressure.
What range of internal pressures does the meter need to cover?
 
I have encountered a vertically oriented hydraulic cylinder that is designed to actuate and slice heavy cabling into sections with a blade. The cylinder is quite small (around 1.5 inches in diameter) and has an equally small stroke. The cylinder is single acting (i.e. it is pressurized from the bottom, and vented to atmosphere with a spring return, roughly 200lbs of force on the spring). The system operates at roughly 2500 psi. Interestingly, the cylinder has a pin that passes through its...

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