On 05/16/2012 02:32 PM, Tony Duell wrote:
AVO is of course an acronym for Amps, Volts,
Ohms. The AVOmeter was one
of the firrst multimeters in the UK (I think you can find them form the
1930s, if not earlier).
Old hands over here use the term 'AVO' (or AVOmeter) generically to refer
to a multimeter, even if not of that make. So if one fo them says 'Have
yuo got an AVO?' and you hand him a Fluke 87, he'll be happy (although
the company lawyers won't be :-))
Over here, one used to hear the term "VOM" (Volt-Ohm Meter), but now
"DVM", "DMM" (whether it's "D" or not!) or
"multimeter" is common. VTVM
Over here, the common term is 'multimeter'. DMM is also common, but not
normally used orally (in other words, a bork or article might refer to a
DMM, but if you want to borrow one, say, you'd say 'Can I borrow your
multimeter'.
DVM is only used for a pure digital voltmeter. And I've neer sene either
DMM or DVM used for analogue instrumetns.
VOM is not common over here. Most UK electorncis people woudl know wht it
means, but would think of it as being an American term, like 'tube' in
place of 'valve'. Incitentally, Iv'e sene 'VOM expanded to 'Volt, Ohm,
Milliammeter'.
(Vacuum Tube Voltmeter, as distinct from a
low-impedance device) was
common up into my childhood in the 1970s.
Again, we'd recognise the term, but not use it normally. For obvious
reasons, that would be called a 'valve voltmeter' over here, which I have
never seen abreviated to VVM or anything like that.
-tony