There are now some handheld inductance/capacitance/resistance
measuring tools that are comparable in price to a traditional
digital VOM. Are they good enough to be of use in typical
troublshooting situations like motors, alternators and ignition
systems? In other words, no RF.
A
In article <r4oj5g$ag3$1@news.albasani.net>, bp@www.zefox.net says...
There are now some handheld inductance/capacitance/resistance
measuring tools that are comparable in price to a traditional
digital VOM. Are they good enough to be of use in typical
troublshooting situations like motors, alternators and ignition
systems? In other words, no RF.
A
Ebay has some for about $ 20. I have one I bought several years ago and
it works fine to give the value of the components.
A company called Peak is selling them for close to $ 100,but internally
they are all about the same.
I don't know what you mean by trouble shooting with them,, but for out
of circuit test on components they are fine to tell if a component is
good or bad and will show close to the actual value of the component.
There are now some handheld inductance/capacitance/resistance
measuring tools that are comparable in price to a traditional
digital VOM. Are they good enough to be of use in typical
troublshooting situations like motors, alternators and ignition
systems? In other words, no RF.
Amazon has one for only $35, which seems hard to believe. One
review notes lack of overload protection, perhaps explaining
the low price, but still it's said to work reasonably well.
Even if a unit with decent overload protection doubles the
price that seems inexpensive, if it really works.
My only experience with LCR measurements was with a General
Radio manual bridge probably built in the 1960's. Excellent,
but bulky.
Sounds like they're reasonably useful. By trouble shooting I meant simply that the device is reasonably unfussy in use. It needn't be highly accurate, and ideally should measure in-cicuit, but the latter is probably unrealistic. In my case out-of-circuit measurements are apt to be the norm. It's also helpful if the L and C measurements don't require a large Q value.
They usually have 3 leads and you just hook them up in any order, use
only 2 if that is all the component has. Then press the button and a
few seconds later it will tell you what is hooked to the leads and the
value.
Ralph Mowery <rmowery28146@earthlink.net> wrote:
They usually have 3 leads and you just hook them up in any order, use
only 2 if that is all the component has. Then press the button and a
few seconds later it will tell you what is hooked to the leads and the
value.
Any idea how the measurement is made? Everything I can think of
starts with a step voltage and records voltage and current. That
takes something akin to a DSO and waveform analyzer to sort out
the circuit values. Seems incredible for less than $50.
Any idea how the measurement is made? Everything I can think of
starts with a step voltage and records voltage and current. That
takes something akin to a DSO and waveform analyzer to sort out
the circuit values. Seems incredible for less than $50.
There are now some handheld inductance/capacitance/resistance
measuring tools that are comparable in price to a traditional digital
VOM. Are they good enough to be of use in typical troublshooting
situations like motors, alternators and ignition systems? In other
words, no RF.
Amazon has one for only $35, which seems hard to believe.
Any idea how the measurement is made? Everything I can think of
starts with a step voltage and records voltage and current. That
takes something akin to a DSO and waveform analyzer to sort out
the circuit values. Seems incredible for less than $50.
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