- An
absorption wavemeter is a
simple electronic instrument used to
measure the
frequency of
radio waves. It is an
older method of
measuring frequency,...
- far too slow to react, and new
meters were introduced. The
absorption wavemeter is a
simple system consisting of a
single tunable LC
circuit and a separate...
-
Mechanical methods require a
tunable resonator such as an
absorption wavemeter,
which has a
known relation between a
physical dimension and frequency...
-
resonators and
crystal oscillators applied to the
precision calibration of
wavemeters".
Proceedings of the
American Academy of Arts and Sciences. 59 (4): 81–106...
- A
vacuum tube Abraham-Bloch
multivibrator oscillator, France, 1920 (small box, left). Its
harmonics are
being used to
calibrate a
wavemeter (center)....
- 1940s in
South Africa. The
circuit was
first used for a
stable wavemeter. (A
wavemeter is used for
measuring the
wavelength and
therefore also the frequency...
- is used in
vacuum tubes, high-voltage indicators,
lightning arresters,
wavemeter tubes,
television tubes, and helium–neon lasers. Gas
mixtures that include...
-
makes it
difficult to
localize the
exact voltage minimum. In
precision wavemeters an RF
voltmeter is used. The
other method used to find the
nodes is to...
- used as a
sensitive probe of the
light source. This can be used in a
wavemeter configuration, with a
resolution around 1 attometre, (equivalent to 1...
- tube Abraham-Bloch
multivibrator relaxation oscillator, France, 1920 (small box, left). Its
harmonics are
being used to
calibrate a
wavemeter (center)....
