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Harness Tester — Parallax Forums

Harness Tester

ArchiverArchiver Posts: 46,084
edited 2004-01-08 22:55 in General Discussion
Hi, Any ane has any idea how can a do a hardness tester using a BS?


Thank you,

Edson

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2004-01-08 19:27
    Hmmmmmmm......

    Back when I was in engineering school some 30 years ago, hardness testing
    produced a Brinell hardness number, sort of like a seismic scale
    reading. This used to be done using a cone or cylinder shaped indenter
    applied to the surface to be tested with a specific force via a hydraulic
    ram. Then you see how big of a hole you made and came up with the hardness
    number. Of course, this is destructive and not very automated. Still, the
    idea of poking a surface with a pointer and seeing how far it indents for a
    given pressure is the idea. For really hard things you use a diamond point.
    See http://www.gordonengland.co.uk/hardness/brinell.htm for a pretty good
    link on the specifics.

    Reading the pressure with a stamp is easy. Seeing how far it goes in could
    be a problem since you have to account for any flex in the system. Measuring
    the hole/impression diameter would need a camera of sorts.

    I'm just throwing out the basic principals of hardness testing to see if
    anyone can tweak my brain on an alternate method. There's got to be a
    better, automatable way to do this.

    Mike Sokol
    www.modernrecording.com
    mikes@m...


    " One should not increase, beyond what is necessary,
    the number of entities required to explain anything"...
    -William of Occam-

    Original Message
    From: "h40miami" <h40miami@y...>
    To: <basicstamps@yahoogroups.com>
    Sent: Thursday, January 08, 2004 2:07 PM
    Subject: [noparse][[/noparse]basicstamps] Harness Tester


    > Hi, Any ane has any idea how can a do a hardness tester using a BS?
    >
    >
    > Thank you,
    >
    > Edson
    >
    >
    > To UNSUBSCRIBE, just send mail to:
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    >
  • ArchiverArchiver Posts: 46,084
    edited 2004-01-08 21:18
    Mike,
    I think he meant "harness" tester to pass/fail conductivity
    on multiple conductors rather than a 'hardness' tester.

    -Beau Schwabe

    >Hmmmmmmm......
    >
    >Back when I was in engineering school some 30 years ago, hardness testing
    >produced a Brinell hardness number, sort of like a seismic scale
    >reading. This used to be done using a cone or cylinder shaped indenter
    >applied to the surface to be tested with a specific force via a hydraulic
    >ram. Then you see how big of a hole you made and came up with the hardness
    >number. Of course, this is destructive and not very automated. Still, the
    >idea of poking a surface with a pointer and seeing how far it indents for a
    >given pressure is the idea. For really hard things you use a diamond point.
    >See http://www.gordonengland.co.uk/hardness/brinell.htm for a pretty good
    >link on the specifics.
    >
    >Reading the pressure with a stamp is easy. Seeing how far it goes in could
    >be a problem since you have to account for any flex in the system. Measuring
    >the hole/impression diameter would need a camera of sorts.
    >
    >I'm just throwing out the basic principals of hardness testing to see if
    >anyone can tweak my brain on an alternate method. There's got to be a
    >better, automatable way to do this.
    >
    >Mike Sokol
    >www.modernrecording.com
    >mikes@m...
    >
    >
    >" One should not increase, beyond what is necessary,
    >the number of entities required to explain anything"...
    >-William of Occam-
    >
    >
    >
    Original Message
    >From: "h40miami" <h40miami@y...>
    >To: <basicstamps@yahoogroups.com>
    >Sent: Thursday, January 08, 2004 2:07 PM
    >Subject: [noparse][[/noparse]basicstamps] Harness Tester
    >
    >
    > > Hi, Any ane has any idea how can a do a hardness tester using a BS?
    > >
    > >
    > > Thank you,
    > >
    > > Edson
    > >
    > >
    > > To UNSUBSCRIBE, just send mail to:
    > > basicstamps-unsubscribe@yahoogroups.com
    > > from the same email address that you subscribed. Text in the Subject and
    >Body of the message will be ignored.
    > >
    > >
    > > Yahoo! Groups Links
    > >
    > > To visit your group on the web, go to:
    > > http://groups.yahoo.com/group/basicstamps/
    > >
    > > To unsubscribe from this group, send an email to:
    > > basicstamps-unsubscribe@yahoogroups.com
    > >
    > > Your use of Yahoo! Groups is subject to:
    > > http://docs.yahoo.com/info/terms/
    > >
    > >
    > >
    > >
    >
    >
    >
    >To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    >from the same email address that you subscribed. Text in the Subject and
    >Body of the message will be ignored.
    >
    >
    >Yahoo! Groups Links
    >
    >To visit your group on the web, go to:
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    >
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  • ArchiverArchiver Posts: 46,084
    edited 2004-01-08 21:40
    Could be a harness tester...

    Still, I like the idea of a little stamp controlling a big hydraulic press
    and smashing up things, don't you????

    Mike
    Original Message
    From: "Beau Schwabe" <bschwabe@a...>
    To: <basicstamps@yahoogroups.com>
    Sent: Thursday, January 08, 2004 4:18 PM
    Subject: Re: [noparse][[/noparse]basicstamps] Harness Tester


    >
    > Mike,
    > I think he meant "harness" tester to pass/fail conductivity
    > on multiple conductors rather than a 'hardness' tester.
    >
    > -Beau Schwabe
    >
    > >Hmmmmmmm......
    > >
    > >Back when I was in engineering school some 30 years ago, hardness testing
    > >produced a Brinell hardness number, sort of like a seismic scale
    > >reading. This used to be done using a cone or cylinder shaped indenter
    > >applied to the surface to be tested with a specific force via a hydraulic
    > >ram. Then you see how big of a hole you made and came up with the
    hardness
    > >number. Of course, this is destructive and not very automated. Still, the
    > >idea of poking a surface with a pointer and seeing how far it indents for
    a
    > >given pressure is the idea. For really hard things you use a diamond
    point.
    > >See http://www.gordonengland.co.uk/hardness/brinell.htm for a pretty good
    > >link on the specifics.
    > >
    > >Reading the pressure with a stamp is easy. Seeing how far it goes in
    could
    > >be a problem since you have to account for any flex in the system.
    Measuring
    > >the hole/impression diameter would need a camera of sorts.
    > >
    > >I'm just throwing out the basic principals of hardness testing to see if
    > >anyone can tweak my brain on an alternate method. There's got to be a
    > >better, automatable way to do this.
    > >
    > >Mike Sokol
    > >www.modernrecording.com
    > >mikes@m...
    > >
    > >
    > >" One should not increase, beyond what is necessary,
    > >the number of entities required to explain anything"...
    > >-William of Occam-
    > >
    > >
    > >
    Original Message
    > >From: "h40miami" <h40miami@y...>
    > >To: <basicstamps@yahoogroups.com>
    > >Sent: Thursday, January 08, 2004 2:07 PM
    > >Subject: [noparse][[/noparse]basicstamps] Harness Tester
    > >
    > >
    > > > Hi, Any ane has any idea how can a do a hardness tester using a BS?
    > > >
    > > >
    > > > Thank you,
    > > >
    > > > Edson
    > > >
    > > >
    > > > To UNSUBSCRIBE, just send mail to:
    > > > basicstamps-unsubscribe@yahoogroups.com
    > > > from the same email address that you subscribed. Text in the Subject
    and
    > >Body of the message will be ignored.
    > > >
    > > >
    > > > Yahoo! Groups Links
    > > >
    > > > To visit your group on the web, go to:
    > > > http://groups.yahoo.com/group/basicstamps/
    > > >
    > > > To unsubscribe from this group, send an email to:
    > > > basicstamps-unsubscribe@yahoogroups.com
    > > >
    > > > Your use of Yahoo! Groups is subject to:
    > > > http://docs.yahoo.com/info/terms/
    > > >
    > > >
    > > >
    > > >
    > >
    > >
    > >
    > >To UNSUBSCRIBE, just send mail to:
    > > basicstamps-unsubscribe@yahoogroups.com
    > >from the same email address that you subscribed. Text in the Subject and
    > >Body of the message will be ignored.
    > >
    > >
    > >Yahoo! Groups Links
    > >
    > >To visit your group on the web, go to:
    > > http://groups.yahoo.com/group/basicstamps/
    > >
    > >To unsubscribe from this group, send an email to:
    > > basicstamps-unsubscribe@yahoogroups.com
    > >
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    >
    >
    >
    > To UNSUBSCRIBE, just send mail to:
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    Body of the message will be ignored.
    >
    >
    > Yahoo! Groups Links
    >
    > To visit your group on the web, go to:
    > http://groups.yahoo.com/group/basicstamps/
    >
    > To unsubscribe from this group, send an email to:
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    >
    > Your use of Yahoo! Groups is subject to:
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    >
    >
    >
  • ArchiverArchiver Posts: 46,084
    edited 2004-01-08 22:55
    From: "Beau Schwabe" <bschwabe@a...>

    > I think he meant "harness" tester to pass/fail conductivity
    > on multiple conductors rather than a 'hardness' tester.
    >
    Ah... I had an American Saddlebred that often engaged in that activity, but
    I wasn't aware it was worthy of a whole category of test instruments.

    Gary
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