Flow Meters and flow measurement became known to people as early as a thousand years ago! Here's a brief history of the Flow Meters.

1. The creation of instruments that
leaned towards miniaturization and
precision.
1790
1955
A B R I E F H I S T O R Y O F
FLOW
METERS
1896
The very first turbine meters
credited to Woltmann for
calculating the loss of energy in
open canals. It would be true to say
that these were used for counting
or totalising flow rather than
providing an instantaneous rate
display or output.
American Hungarians Tollbar
devised a new theory called the
Tollbar vortex.
1989
15 million flow meters were
mounted.
1952
Electromagnetic, proven by
Faraday but commercially
produced.
Hershel in the USA devised the
Venturi device to effectively
measure water flow in open
channels.
Flow Meters and flow measurement
became known to people as early as a
thousand years ago! Here's a brief history of
the Flow Meters.
1908
Maxon created the sound cycling
method to accurately measure flow
in aviation fuel.1960
1963
Ultrasonic commercially
produced.
1969
The van Karmann effect of the
generation of alternate vortices
past a bluff body commercially,
famously spotted by Leonardo
da Vinci in 1504. 1970's
Thermal, hot wire anemometers
were used from the early 1900s,
commercially available.
2003
Sonar, unconventional and
measures turbulence.
20th century
Variable Area, available for most
of the 20th century.
1911-1912
Ultrasonic flow meters were being
utilized to measure liquid air flow
velocity, but they did not achieve
good results.
Coriolis, inertial force was first
formulated by Gustave Coriolis in
1835 but MicroMotion didn’t
release a commercial unit .
1977
Turbine, first drawn up in 1790,
commercially available post
Second World War.
1945