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LED Sausage

Discussion in 'Electronic Design' started by Jan Panteltje, Jul 19, 2007.

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  1. LED Sausage
  2. Hmm..... It seems that the LEDs with higher Vf requirements lit first. Any
    theories on that? I wonder if excessive Vr killed some instantly since they
    never lit up. I'm guessing 120VAC was used.
  3. I'd look at the saussage as a resistor, with taps for the LEDs.
    Depending on where the LEDs are some parts of that resistor would be
    1.5V or more 'zeners' (LED forward).

    If 120V was used that is 170V peak, and sousage is 20 cm, you have
    170 / 200 = .85V / mm, for 2.54 mm LED wire distance that gives 2.159 V
    for the LED.
    But in reality more, because parts of the sausage are zenered.
    So a LED that needs 3V would likely work too, and have more
    energy by the same current.
    The reverse voltage would be about within limits too.
    As the saussage gets hotter and chemical reaction take place, the resistance likely drops...
  4. The ones that do not light up are perhaps like this:

    no go go
  5. Yeah, I was thinking that was a possibility. Funny how the LEDs that lit
    dissipated the cooking energy locally so that the as hot-dog swelled, a lit
    LED made a constricting band in that area. I was also thinking that as the
    dog cooked, the resistance was going _up_ causing more LEDs to light.
  6. D from BC

    D from BC Guest

    I wonder if unhealthy food conducts more electricity...
    Ex: Salts such as the nitrates make food more conductive.

    I bet cola is more conductive than milk.
    And....I'll guess a greasy burger patty (McDonalds)conducts more than
    a T bone steak.

    D from BC

  7. Grease is an insulator. Any conduction would be from the remaining
    water in the meat.

    Service to my country? Been there, Done that, and I've got my DD214 to
    prove it.
    Member of DAV #85.

    Michael A. Terrell
    Central Florida
  8. Fred_Bartoli

    Fred_Bartoli Guest

    Jan Panteltje a écrit :
    But it makes the wurst fuse ever.
  9. Rich Grise

    Rich Grise Guest

    I'd take that bet, but I don't want to waste a burger and a steak. ;-)

    I say the steak would be more conductive, because it's got continuous
    meat, where the burger is interrupted by fat.

  10. D from BC

    D from BC Guest

    Good point about the grease (oils) acting as an insulator..
    But McDonalds patties are processed and probably contain ionic
    compounds like salts for preservation and taste...somewhat like the
    LED sausage.
    I'll bring my ohm meter to McDonalds to measure patty resistance :)
    Call it pohms (patty resistance).. :p
    D from BC
  11. Rich Grise

    Rich Grise Guest

    No, you have to measure them raw, like the weenie was. ;-)

    Imagine sticking two forks into a T-bone steak and plugging it in. =:-O

  12. Rich Grise

    Rich Grise Guest

    That sounds like a bunch of baloney. ;-)

  13. D from BC

    D from BC Guest

    I don't think I can get a raw McDonalds patty.. I'm not sure but I
    think McD's receives precooked and frozen patties.
    It allows stoned min wage teenagers to make burgers with a next to
    nill E-Coli risk.

    I plugged in a hot dog (120VAC) sometime in my teens and tasted it.. I
    tasted metal.
    Electrolysis occurs and I think the fork metal gets into the food.

    Instead of forks...carbon electrodes into a steak would probably be
    better.. (Part of the BBQ flavor is incinerated (carbon) meat

    A T bone doesn't have the ionic additives of a sausage so the voltage
    might need to be higher...Electrocution style cooking... mmmmmm :)

    I probed a package of raw ground regular hamburger meat with a DMM.
    3" probe spacing
    1" probe depth
    10 second settle time
    1 test only

    Raw burger meat resistance ~ 200kohm
    D from BC
  14. ehsjr

    ehsjr Guest

    Naw - they're designing an ESR meter in another newsgroup.
    Now we know the truth - it's an Effective Sausage Resistance
    meter. Use that.


  15. Can explain why they need their automatic ovens, to cook the
    patties? They are belt driven just like a pizza oven, with controlled
    speed and temperature. I've seen them loading the thing at the local

    Service to my country? Been there, Done that, and I've got my DD214 to
    prove it.
    Member of DAV #85.

    Michael A. Terrell
    Central Florida
  16. D from BC

    D from BC Guest

    Maybe it's because frozen precooked patties that are microwaved
    dethawed and heated don't taste as good.
    (I don't microwave chicken...)

    The belt driven oven could be just a dethaw and reheat machine.

    Precooked patties I think would also have the advantage of less
    cooking time for more burgers per minute..
    There's possibly less oven cleaning too if precooked patties are used.

    I'm not entirely sure if McD's cooks from frozen raw or reheats from
    frozen precook.
    But I suspect frozen precooked patties.
    D from BC

  17. ??? Restaurants collect and sell that grease. The cooking equipment
    collects the grease into holding tanks so they can sell it. The salvage
    company that buys it sends someone with a tank truck to pump out the
    tanks on a set route. The grease is used to make hand soap, and in some
    other industrial applications.

    It would be quicker & cheaper to microwave them if they were
    pre-cooked and frozen. I don't know about you, but I can taste the
    difference in a fresh cooked, or a reheated burger.

    The patties I saw are pink, and were thawed before they are loaded
    into the automatic oven.

    Service to my country? Been there, Done that, and I've got my DD214 to
    prove it.
    Member of DAV #85.

    Michael A. Terrell
    Central Florida
  18. D from BC

    D from BC Guest

    Pink! That's good..
    I'll confirm that on my next trip through the drive thru.
    The tougher question will be if McDonalds can give me a raw patty :)

    ....Which could be combined with going through the drive thru naked...
    (An old $100.00 dare from friends. Maybe I can get $130 for asking for
    a raw patty with no clothes on.. :p)
    D from BC

  19. I would think that the health department would have rules against
    them giving you raw, unpackaged meat. The same goes for the local
    police. A stunt like that could get you a year in jail, and turn you
    into a registered sex offender.

    Service to my country? Been there, Done that, and I've got my DD214 to
    prove it.
    Member of DAV #85.

    Michael A. Terrell
    Central Florida
  20. krw

    krw Guest

    ....unless you're in Vermont (no laws against nudity, though there is
    against undressing/stripping in public).
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