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Multimeters
Hi I want to buy a new Multimeter and there are a few features that
currently I have no idea what they mean. Obviously I currently have no idea for those features but I wondered if somebody can explain to me what they are/do so maybe in the future I will need them. 1. Conductance 2. Motor Drive Measurement 3. Smoothing |
Multimeters
T.J. wrote:
Hi I want to buy a new Multimeter and there are a few features that currently I have no idea what they mean. Obviously I currently have no idea for those features but I wondered if somebody can explain to me what they are/do so maybe in the future I will need them. 1. Conductance 2. Motor Drive Measurement 3. Smoothing Google them. -- Moe Jones HVAC Service Technician Energy Equalizers Inc. Houston, Texas www.EnergyEqualizers.com |
Multimeters
T.J. wrote:
Hi I want to buy a new Multimeter and there are a few features that currently I have no idea what they mean. Obviously I currently have no idea for those features but I wondered if somebody can explain to me what they are/do so maybe in the future I will need them. 1. Conductance 2. Motor Drive Measurement 3. Smoothing You might want to repost this over on sci.electronics.repair to get some real answers and a feel for how often you need or might use the features. |
Multimeters
: 1. Conductance
This is when a guy in a tuxedo gets up in front of the orchestra, and waves the little black thing that is on the end of the VOM wire. While people are out on the dance floor. He's the conduct dance. : 2. Motor Drive Measurement Every computer has a C drive. Well, some have motor drives also. You put one lead in your A-drive, and another in the disk drive. The meter tells you how much motor drive you have. : 3. Smoothing When you surf the web, you click from picture to picture. Web page to web page. By smoothing, you make all the web pages look the same. This is a computer function. Usually they just look like a blank screen, but that's smoothing for you. -- Christopher A. Young You can't shout down a troll. You have to starve them. .. "T.J." wrote in message oups.com... : Hi I want to buy a new Multimeter and there are a few features that : currently I have no idea what they mean. Obviously I currently have no : idea for those features but I wondered if somebody can explain to me : what they are/do so maybe in the future I will need them. : 1. Conductance : 2. Motor Drive Measurement : 3. Smoothing : |
Multimeters
On Mon, 30 Jul 2007 20:29:56 -0400, "Stormin Mormon"
wrote: : 1. Conductance This is when a guy in a tuxedo gets up in front of the orchestra, and waves the little black thing that is on the end of the VOM wire. While people are out on the dance floor. He's the conduct dance. : 2. Motor Drive Measurement Every computer has a C drive. Well, some have motor drives also. You put one lead in your A-drive, and another in the disk drive. The meter tells you how much motor drive you have. : 3. Smoothing When you surf the web, you click from picture to picture. Web page to web page. By smoothing, you make all the web pages look the same. This is a computer function. Usually they just look like a blank screen, but that's smoothing for you. Thank you for the brevity. Very concise and too the point. -- Oren "I didn’t say it was your fault, I said I was blaming you." |
Multimeters
Conductance is the inverse of resistance. calculated as 1/ohms=mhos
"T.J." wrote in message oups.com... Hi I want to buy a new Multimeter and there are a few features that currently I have no idea what they mean. Obviously I currently have no idea for those features but I wondered if somebody can explain to me what they are/do so maybe in the future I will need them. 1. Conductance 2. Motor Drive Measurement 3. Smoothing |
Multimeters
Mho? isn't that what she screams in the bedroom?
-- Christopher A. Young You can't shout down a troll. You have to starve them. .. "jmagerl" wrote in message et... : Conductance is the inverse of resistance. calculated as 1/ohms=mhos : : : "T.J." wrote in message : oups.com... : Hi I want to buy a new Multimeter and there are a few features that : currently I have no idea what they mean. Obviously I currently have no : idea for those features but I wondered if somebody can explain to me : what they are/do so maybe in the future I will need them. : 1. Conductance : 2. Motor Drive Measurement : 3. Smoothing : : : |
Multimeters
On Tue, 31 Jul 2007 02:02:47 GMT, "jmagerl"
wrote: Conductance is the inverse of resistance. calculated as 1/ohms=mhos They changed "Mhos" to "Siemens". I wish they hadn't (naming it after someone, rather than using something actually meaningful). "T.J." wrote in message roups.com... Hi I want to buy a new Multimeter and there are a few features that currently I have no idea what they mean. Obviously I currently have no idea for those features but I wondered if somebody can explain to me what they are/do so maybe in the future I will need them. 1. Conductance 2. Motor Drive Measurement 3. Smoothing -- Mark Lloyd http://notstupid.laughingsquid.com "Unlike biological evolution. 'intelligent design' is not a genuine scientific theory and, therefore, has no place in the curriculum of our nation's public school classes." -- Ted Kennedy |
Multimeters
Mark Lloyd wrote:
On Tue, 31 Jul 2007 02:02:47 GMT, "jmagerl" wrote: Conductance is the inverse of resistance. calculated as 1/ohms=mhos They changed "Mhos" to "Siemens". I wish they hadn't (naming it after someone, rather than using something actually meaningful). How do you feel about the change of cycles-per-second to Hertz? |
Multimeters
jmagerl wrote:
One of the great pieces of scientific humor was the units for conductance as mho, with a symbol of an upside down omega [ohms symbol]. It has been ruined. I believe conductance is now Siemens. Who the hell ever heard of Siemens. I was depressed for weeks. -- bud-- Conductance is the inverse of resistance. calculated as 1/ohms=mhos "T.J." wrote in message oups.com... Hi I want to buy a new Multimeter and there are a few features that currently I have no idea what they mean. Obviously I currently have no idea for those features but I wondered if somebody can explain to me what they are/do so maybe in the future I will need them. 1. Conductance 2. Motor Drive Measurement 3. Smoothing |
Multimeters
On Jul 31, 4:24 pm, bud-- wrote:
jmagerl wrote: One of the great pieces of scientific humor was the units for conductance as mho, with a symbol of an upside down omega [ohms symbol]. It has been ruined. I believe conductance is now Siemens. Who the hell ever heard of Siemens. I was depressed for weeks. No problemo; just rename the unit of resistance Snemeis. |
Multimeters
On Jul 30, 11:11 am, "T.J." wrote:
Hi I want to buy a new Multimeter and there are a few features that currently I have no idea what they mean. Obviously I currently have no idea for those features but I wondered if somebody can explain to me what they are/do so maybe in the future I will need them. 1. Conductance 2. Motor Drive Measurement 3. Smoothing sounds like some fancy meter; conductance like everybody is telling you is 1/resistance. Most useful when comparing like .000000000001 ohms with .00000000000002 ohms; i.e., i've never needed it in my life, but i guess if you're pumping huge currents through big wires, it's important. smoothing, i would guess is just a filter to keep the reading steadier; digital multimeters are inferior to analog in your ability to just eyeball an average number from a wobbling reading, so that would be cool. motor drive measurement, seems like nobody here knows and neither do i. you know what i would like, though it seems silly; something that would speak the reading when i have both hands on the leads and can't take my eye off things long enough to look at the meter. |
Multimeters
On Tue, 31 Jul 2007 10:44:27 -0500, "HeyBub"
wrote Re Multimeters: Mark Lloyd wrote: On Tue, 31 Jul 2007 02:02:47 GMT, "jmagerl" wrote: Conductance is the inverse of resistance. calculated as 1/ohms=mhos They changed "Mhos" to "Siemens". I wish they hadn't (naming it after someone, rather than using something actually meaningful). How do you feel about the change of cycles-per-second to Hertz? Even after all these years, I'm still annoyed by it. Why name something like that after a car rental company? :-) -- To email me directly, remove CLUTTER. |
Multimeters
z wrote:
.... you know what i would like, though it seems silly; something that would speak the reading when i have both hands on the leads and can't take my eye off things long enough to look at the meter. Something like this, maybe? http://www.omega.com/ppt/pptsc.asp?ref=HHM2 Unfortunately, it seems to have been discontinued. I've seen some others advertised, too, but don't recall who, specifically. -- |
Multimeters
On Tue, 31 Jul 2007 15:24:31 -0500, bud--
wrote: jmagerl wrote: One of the great pieces of scientific humor was the units for conductance as mho, with a symbol of an upside down omega [ohms symbol]. It has been ruined. I believe conductance is now Siemens. Who the hell ever heard of Siemens. I was depressed for weeks. I only heard about this just now, but I'm going to continue to call them mhos. Just like I call the stadiums in Baltimore by Oriole Park and Ravens Stadium. Even though iiuc they never had those names, and the previous baseball stadium was called Memorial Stadium**. Same thing for other cities. **Even though they never said what it was a memorial too and if you entered by the sides and never looked at the end, you'd never know. At least one could find out by looking. I had to call Union Memorial Hospital to find out what it was a memorial to. The Union? I'm not bound by their rules. And I'm also not bound to learn new names when other people want new names. I also call the inverse of a volt a larry and the inverse of an amp a curlie. And Pluto is the ninth planet from the sun. If there are hundreds of others that big that don't get noticed, a) I don't know that, and b) it's their problem. |
Multimeters
On Tue, 31 Jul 2007 13:28:51 -0700, z wrote:
you know what i would like, though it seems silly; something that would speak the reading when i have both hands on the leads and can't take my eye off things long enough to look at the meter. I'm sure you know there are meters that will hold the reading (or the maximum reading?) after the probes are removed, until you press the zero-again button. Not as good, but easier to do. My friend has a cellphone that takes voice ccommands, but iirc his complaint is that he has to speak each number. I think he also has to train the phone. He thinks for all that they should let him give names to full phone numbers. He spends a lot of time in the truck for business. |
Multimeters
On Tue, 31 Jul 2007 15:24:31 -0500, bud--
wrote: jmagerl wrote: One of the great pieces of scientific humor was the units for conductance as mho, with a symbol of an upside down omega [ohms symbol]. It has been ruined. I believe conductance is now Siemens. Who the hell ever heard of Siemens. I was depressed for weeks. Are they still using the same units (name change only)? One time I heard of a unit of closeness, called a retem. -- Mark Lloyd http://notstupid.laughingsquid.com "Unlike biological evolution. 'intelligent design' is not a genuine scientific theory and, therefore, has no place in the curriculum of our nation's public school classes." -- Ted Kennedy |
Multimeters
On Tue, 31 Jul 2007 13:28:51 -0700, z wrote:
On Jul 30, 11:11 am, "T.J." wrote: Hi I want to buy a new Multimeter and there are a few features that currently I have no idea what they mean. Obviously I currently have no idea for those features but I wondered if somebody can explain to me what they are/do so maybe in the future I will need them. 1. Conductance 2. Motor Drive Measurement 3. Smoothing sounds like some fancy meter; conductance like everybody is telling you is 1/resistance. Most useful when comparing like .000000000001 ohms with .00000000000002 ohms; I suppose you'd use metric prefixes, like for any other small (or large) numbers. Here you'd be using pico- and femto-. i.e., i've never needed it in my life, but i guess if you're pumping huge currents through big wires, it's important. smoothing, i would guess is just a filter to keep the reading steadier; digital multimeters are inferior to analog in your ability to just eyeball an average number from a wobbling reading, so that would be cool. motor drive measurement, seems like nobody here knows and neither do i. I have worked with 4-phase stepper motors. I wonder if there's any connection there. you know what i would like, though it seems silly; something that would speak the reading when i have both hands on the leads and can't take my eye off things long enough to look at the meter. How will it know when you want it to speak? If you couldn't get it to shut up that feature could become really annoying. -- Mark Lloyd http://notstupid.laughingsquid.com "Unlike biological evolution. 'intelligent design' is not a genuine scientific theory and, therefore, has no place in the curriculum of our nation's public school classes." -- Ted Kennedy |
Multimeters
Mark Lloyd wrote:
On Tue, 31 Jul 2007 13:28:51 -0700, z wrote: On Jul 30, 11:11 am, "T.J." wrote: Hi I want to buy a new Multimeter and there are a few features that currently I have no idea what they mean. Obviously I currently have no idea for those features but I wondered if somebody can explain to me what they are/do so maybe in the future I will need them. 1. Conductance 2. Motor Drive Measurement 3. Smoothing sounds like some fancy meter; conductance like everybody is telling you is 1/resistance. Most useful when comparing like .000000000001 ohms with .00000000000002 ohms; I suppose you'd use metric prefixes, like for any other small (or large) numbers. Here you'd be using pico- and femto-. i.e., i've never needed it in my life, but i guess if you're pumping huge currents through big wires, it's important. smoothing, i would guess is just a filter to keep the reading steadier; digital multimeters are inferior to analog in your ability to just eyeball an average number from a wobbling reading, so that would be cool. motor drive measurement, seems like nobody here knows and neither do i. I have worked with 4-phase stepper motors. I wonder if there's any connection there. you know what i would like, though it seems silly; something that would speak the reading when i have both hands on the leads and can't take my eye off things long enough to look at the meter. How will it know when you want it to speak? If you couldn't get it to shut up that feature could become really annoying. The one I posted a link to has (or had, since its now out of production, apparently) a button on the positive lead to ask for a measurement. Whether it had an "auto-irritate" mode I don't know... :) -- |
Multimeters
On Wed, 01 Aug 2007 13:42:27 -0500, Mark Lloyd
wrote: you know what i would like, though it seems silly; something that would speak the reading when i have both hands on the leads and can't take my eye off things long enough to look at the meter. How will it know when you want it to speak? I think your wife is supposed to tell it. If you couldn't get it to shut up that feature could become really annoying. -- Mark Lloyd |
Multimeters
On Wed, 01 Aug 2007 13:29:36 -0500, Mark Lloyd
wrote: One time I heard of a unit of closeness, called a retem. Remember Serutan spelled backwards is Natures and Tums spelled backwards is smut. |
Multimeters
mm wrote:
On Wed, 01 Aug 2007 13:29:36 -0500, Mark Lloyd wrote: One time I heard of a unit of closeness, called a retem. Remember Serutan spelled backwards is Natures and Tums spelled backwards is smut. Then there is Evian bottled water. -- bud-- |
Multimeters
On Jul 31, 1:18 pm, Mark Lloyd wrote:
They changed "Mhos" to "Siemens". I wish they hadn't (naming it after someone, rather than using something actually meaningful). You mean; Like watts; after James Watt? Or volts after Volta, amps after Ampere, farads after Faraday, curies after Marie Curie, roentgens of radioctivity after Roentgen, magnetic flux after Gauss,. frequencies after Hertz, pasteurization of food after Pasteur, etc. etc. hard to think of many units that are NOT named after some researcher! Maybe we could think and Fess and den come up with a few missing ones?. And of course we have the decibel (Bel) after Alexander Graham Bell of telephone inventing fame! |
Multimeters
The farad is the SI unit of the capacitance of an electrical system,
that is, its capacity to store electricity. It is a rather large unit as defined and is more often used as a microfarad. It is named after the English chemist and physicist Michael Faraday (1791-1867). The hertz is the SI unit of the frequency of a periodic phenomenon. One hertz indicates that 1 cycle of the phenomenon occurs every second. For most work much higher frequencies are needed such as the kilohertz [kHz] and megahertz [MHz]. It is named after the German physicist Heinrich Rudolph Hertz (1857-94). The joule is the SI unit of work or energy. One joule is the amount of work done when an applied force of 1 newton moves through a distance of 1 metre in the direction of the force.It is named after the English physicist James Prescott Joule (1818-89). The newton is the SI unit of force. One newton is the force required to give a mass of 1 kilogram an acceleration of 1 metre per second per second. It is named after the English mathematician and physicist Sir Isaac Newton (1642-1727). The ohm is the SI unit of resistance of an electrical conductor. Its symbol, is the capital Greek letter 'omega'. It is named after the German physicist Georg Simon Ohm (1789-1854). The pascal is the SI unit of pressure. One pascal is the pressure generated by a force of 1 newton acting on an area of 1 square metre. It is a rather small unit as defined and is more often used as a kilopascal [kPa]. It is named after the French mathematician, physicist and philosopher Blaise Pascal (1623-62). The volt is the SI unit of electric potential. One volt is the difference of potential between two points of an electical conductor when a current of 1 ampere flowing between those points dissipates a power of 1 watt. It is named after the Italian physicist Count Alessandro Giuseppe Anastasio Volta (1745-1827). The watt is used to measure power or the rate of doing work. One watt is a power of 1 joule per second. It is named after the Scottish engineer James Watt (1736-1819 More some other time .................... ! There's bound to be a Russian or two in among those Europeans! |
Multimeters
On Thu, 02 Aug 2007 12:34:33 -0700, terry
wrote: On Jul 31, 1:18 pm, Mark Lloyd wrote: They changed "Mhos" to "Siemens". I wish they hadn't (naming it after someone, rather than using something actually meaningful). You mean; Like watts; after James Watt? Or volts after Volta, amps after Ampere, farads after Faraday, curies after Marie Curie, roentgens of radioctivity after Roentgen, magnetic flux after Gauss,. frequencies after Hertz, pasteurization of food after Pasteur, etc. etc. hard to think of many units that are NOT named after some researcher! Maybe we could think and Fess and den come up with a few missing ones?. And of course we have the decibel (Bel) after Alexander Graham Bell of telephone inventing fame! Could this involve the strange idea that if something happens a lot, it must be good? -- Mark Lloyd http://notstupid.laughingsquid.com "Unlike biological evolution. 'intelligent design' is not a genuine scientific theory and, therefore, has no place in the curriculum of our nation's public school classes." -- Ted Kennedy |
Multimeters
mm wrote:
Remember Serutan spelled backwards is Natures and Tums spelled backwards is smut. And Stroh's spelled backwards is shorts. -- Spammer gets 30 years in the slammer Suddenly wishes Viagra was harder to come by http://www.theregister.com/2007/08/02/spammer_gets_30_years/ |
Multimeters
On Fri, 03 Aug 2007 19:27:02 -0500, clifto wrote:
mm wrote: Remember Serutan spelled backwards is Natures and Tums spelled backwards is smut. And Stroh's spelled backwards is shorts. Try spelling "live" backward. |
Multimeters
Mark Lloyd wrote:
On Tue, 31 Jul 2007 02:02:47 GMT, "jmagerl" wrote: Conductance is the inverse of resistance. calculated as 1/ohms=mhos They changed "Mhos" to "Siemens". I wish they hadn't (naming it after someone, rather than using something actually meaningful). "T.J." wrote in message groups.com... Hi I want to buy a new Multimeter and there are a few features that currently I have no idea what they mean. Obviously I currently have no idea for those features but I wondered if somebody can explain to me what they are/do so maybe in the future I will need them. 1. Conductance 2. Motor Drive Measurement 3. Smoothing Hmmm, Ohm is a name too. Now how about admittance? |
Multimeters
on 8/4/2007 11:40 AM Harry said the following:
On Fri, 03 Aug 2007 19:27:02 -0500, clifto wrote: mm wrote: Remember Serutan spelled backwards is Natures and Tums spelled backwards is smut. And Stroh's spelled backwards is shorts. Try spelling "live" backward. The best one is the bottled water from Evian. Does that not describe their consumers? -- Bill In Hamptonburgh, NY To email, remove the double zeroes after @ |
Multimeters
On Sat, 04 Aug 2007 15:50:08 GMT, Tony Hwang wrote:
Mark Lloyd wrote: On Tue, 31 Jul 2007 02:02:47 GMT, "jmagerl" wrote: Conductance is the inverse of resistance. calculated as 1/ohms=mhos They changed "Mhos" to "Siemens". I wish they hadn't (naming it after someone, rather than using something actually meaningful). "T.J." wrote in message egroups.com... Hi I want to buy a new Multimeter and there are a few features that currently I have no idea what they mean. Obviously I currently have no idea for those features but I wondered if somebody can explain to me what they are/do so maybe in the future I will need them. 1. Conductance 2. Motor Drive Measurement 3. Smoothing Hmmm, Ohm is a name too. Yes, the point was in not using an ADDITIONAL name. Now how about admittance? I don't know about admittance, other than this is the reciprocal of impedance. -- Mark Lloyd http://notstupid.laughingsquid.com "Unlike biological evolution. 'intelligent design' is not a genuine scientific theory and, therefore, has no place in the curriculum of our nation's public school classes." -- Ted Kennedy |
Multimeters
On Sat, 04 Aug 2007 11:56:51 -0400, willshak
wrote: on 8/4/2007 11:40 AM Harry said the following: On Fri, 03 Aug 2007 19:27:02 -0500, clifto wrote: mm wrote: Remember Serutan spelled backwards is Natures and Tums spelled backwards is smut. And Stroh's spelled backwards is shorts. Try spelling "live" backward. The best one is the bottled water from Evian. Does that not describe their consumers? I suppose. BTW, I have found Perrier to taste terrible. -- Mark Lloyd http://notstupid.laughingsquid.com "Unlike biological evolution. 'intelligent design' is not a genuine scientific theory and, therefore, has no place in the curriculum of our nation's public school classes." -- Ted Kennedy |
Multimeters
Tony Hwang wrote:
.... Hmmm, Ohm is a name too. Now how about admittance? You don't recall Lord Admit??? :) -- |
Multimeters
willshak wrote:
on 8/4/2007 11:40 AM Harry said the following: On Fri, 03 Aug 2007 19:27:02 -0500, clifto wrote: mm wrote: Remember Serutan spelled backwards is Natures and Tums spelled backwards is smut. And Stroh's spelled backwards is shorts. Try spelling "live" backward. The best one is the bottled water from Evian. Does that not describe their consumers? And just try spelling 'palindrome' backward! Oh, wait... -- Spammer gets 30 years in the slammer Suddenly wishes Viagra was harder to come by http://www.theregister.com/2007/08/02/spammer_gets_30_years/ |
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