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Engine RPM and Tempertaure on real time basics — Parallax Forums

Engine RPM and Tempertaure on real time basics

oopoop Posts: 28
edited 2009-08-19 01:48 in General Discussion
sir,
ds1620 chip is for temperature.But for rpm (revolution per minute) of a tugboat engine checking,what is the suitable chip ?Please guide me about temp as well as rpm.In addition,which products of parallax com. do relate rpm (or rpm calculator ) and temperature ? (rpm calculator or rpm sensor is to be informed).

Comments

  • JavalinJavalin Posts: 892
    edited 2009-08-18 11:58
    you'd need to look at the motor racing product market - they'll sell you an inductive pickup for the HT leads and various water/pressure sensors. You'll have to work out (but the nice people here will help with specific problems) to connect it to your micro-processor and write some code.

    Don't know where you are in the world - but I have some UK manufacturer links if you want.

    James
  • AJMAJM Posts: 171
    edited 2009-08-18 12:33
    You could watch the signal off of the crankshaft (or camshaft) position sensor, effectively measuring the frequency. Then, convert the frequency into rpm.
  • oopoop Posts: 28
    edited 2009-08-18 17:31
    Javalin said...
    you'd need to look at the motor racing product market - they'll sell you an inductive pickup for the HT leads and various water/pressure sensors. You'll have to work out (but the nice people here will help with specific problems) to connect it to your micro-processor and write some code.

    Don't know where you are in the world - but I have some UK manufacturer links if you want.

    James
    sir
    live in india.but send the links of manufacturers all over the world and parallax manufacturers.
  • Agent420Agent420 Posts: 439
    edited 2009-08-18 17:59
    This might be silly, but I'd suggest part of this depends on the goal of the project...· I wouldn't overlook plain old dashboard gauges if that's all you need to know.

    There's also something to be said regarding analog dial type displays...·· They have been proven to be more readily understood, which is why you still see them in most cars today as opposed to numeric digital displays.

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  • oopoop Posts: 28
    edited 2009-08-18 18:34
    AJM said...
    You could watch the signal off of the crankshaft (or camshaft) position sensor, effectively measuring the frequency. Then, convert the frequency into rpm.
    sir
    is it a frequency sensor of parallax?
  • Agent420Agent420 Posts: 439
    edited 2009-08-18 18:41
    ^ To measure frequency, all you have to do is count pulses with a counter.· A little math will tell you how many pulses per second.·

    As for the temperature, you will want something automotive grade that can be installed inline with the cooling plumbing, not a small ic like the ds1620.

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  • W9GFOW9GFO Posts: 4,010
    edited 2009-08-18 18:45
    I would think a hall sensor and a magnet on the flywheel would be simplest.

    Rich H
  • AJMAJM Posts: 171
    edited 2009-08-19 01:48
    Being a forum with the -do it yourself- attitude, we often overlook the obvious.

    That being said I agree with Agent420. Look for an after market tachometer at any automotive store for the easiest solution'
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