Coating processes – Measuring – testing – or indicating – Thickness or uniformity of thickness determined
Patent
1987-06-30
1989-03-28
Lawrence, Evan
Coating processes
Measuring, testing, or indicating
Thickness or uniformity of thickness determined
118688, 118712, 427 27, 427 28, B05D 106, B05B 502, B05B 1208
Patent
active
048162850
ABSTRACT:
A method and apparatus for measuring a quantity of particles deposited on a metal body to be coated with powder or the quantity of powder deposited per unit of time, especially on a moving body. The body is located in a space subjected to an electrostatic field and a quantity of powder deposited, possibly per unit of time, is measured by measuring a charge or current in a circuit connecting the field electrodes. An actual value deposited, indicated by a measurement, is used as a control parameter in a control circuit for adjusting an actual amount deposited to a set deposition amount which is adjustable.
REFERENCES:
patent: 3374112 (1968-03-01), Danon
Lawrence Evan
Prazisions-Werkzeuge AG
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