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Recent content by bob4

  1. bob4

    ASCII buffer & trigger

    I have an Rfid unit producing an 8 Character ASCII code several times a minute, which is fine. My problem is I want the code releasing at a certain time( a second input). The Rfid unit cannot be tuned or played with to do this so my thought is to use some sort of buffer that will store the data...
  2. bob4

    6 channel signal Amp

    Slip of the pen with 2mA, must learn how to use these things. The project is based on a portable unit which will use it's own batery pack and recharge direct from a vehicle power supply. OK, I could use a 24 cell and string a few voltage regulators off it but not realy what I was intending...
  3. bob4

    6 channel signal Amp

    Hi all, Im putting together some test gear and need to boost the signals from 6 inputs, pressure tranducers & Thermocouple. The inputs will give me 2-20mA but I need 2-10vDC. If I could get a single module that's compact and runs on 12Vdc I'll be happy. Any Ideas??
  4. bob4

    flow meter

    Thanks Dan, I've been asked to make up a compact test kit for service engineers. There's loads more tranducers and thermocuples in the kit and i'm trying to keep the weight and size down. I expect a normal working temp of 65-80degC and 70-130Lpm flow. Most standard units seam to be around...
  5. bob4

    flow meter

    It would be nice if I could make the whole unit out of 25mmID SS or some thick walled aluminium tube. weight and size are the most important factors.
  6. bob4

    flow meter

    The flow range can be anywhare from 30 to 160 L/min. I was trying to get the whole unit as compact as possible.
  7. bob4

    flow meter

    Hi All, I'm building a compact flow, pressure and temperature unit to handel max 200litre @ 250Bar and max temp 120DegC of hydraulic oil. looked at the turbine wheel type and i think that there too big and heavy. what if i used two pressure transducers, I could get my pressure reading from the...

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