Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations MintJulep on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  1. whistlemeup

    Solid State Relays vs Electromechanical Relays

    I am not a controls engineer, but have been around electronics for several decades. The cost of Solid State Relays is three times that of Electromechanical Relays which have been around for ever. For this application, both must be Class I Div. II capable. My question is, why should I select...
  2. whistlemeup

    Dynamically monitoring a reciprocating poppet valve?

    I had considered Lazers, but have no experience along that line. Would need a high update rate and accurrate distance measurement. Accelerometers would add mass to a very light peak (plastic) poppet. Acoustic distance I have used but feel it may be too slow. Anyone have experience with Lazers...
  3. whistlemeup

    Dynamically monitoring a reciprocating poppet valve?

    We design compressor valves and revamp old compressors adding efficientcy as well as longivity. Mainly an engineering firm. This valve is our design with a patent pending.
  4. whistlemeup

    Dynamically monitoring a reciprocating poppet valve?

    I need to instrument and dynamic monitor reciprocating compressor poppet valve motion. The poppet is mushroom shaped, made of peak material (plastic), operates in an atomosphere => 250 F, and is located internal to a gas compressor operating at 1200 rpm. Compressor valves consists of multiple...
  5. whistlemeup

    360 degree non-contact rotational indicator

    Wow! I got a lot of good suggestions. The use of gears, mag pickups, and proximitors,.... I have used all of them over the years. Staying in sinc with the rotation of the compressor crankangle is important as we are generating PV cards for research. We have a two throw motor driven...
  6. whistlemeup

    360 degree non-contact rotational indicator

    While there are many rotational function generators that give 360 ppr, they rely on direct coupling to a rotating shaft. What I am looking for is a way to place 360 marks, painted bars, reflective strips, etc. on one section of a flat 12 inch diameter coupling, and using something like a bar...

Part and Inventory Search

Back
Top