Abstract

Commercial densitometers generally have no vibration isolation features incorporated in them. Consequently, when an installation is made in a location subject to external vibrations, some sort of isolation is necessary. In a particular situation of this kind encountered by the writer, the use of large rubber stoppers or a sponge rubber pad was not satisfactory.

The Use of the Photographic Densitometer in Radiography

John T. Norton and B. E. Warren
J. Opt. Soc. Am. 13(4) 525-530 (1926)

Precision Densitometers for Photographic Photometry

George R. Harrison
J. Opt. Soc. Am. 10(2) 157-167 (1925)

A Recording Physical Densitometer*

Clifton Tuttle
J. Opt. Soc. Am. 26(7) 282-292 (1936)

A Photoelectric Reflection-Transmission Densitometer

R. L. Huber and A. B. Rakus
J. Opt. Soc. Am. 39(10) 873-876 (1949)

A Reflection Densitometer

J. W. McFarlane
J. Opt. Soc. Am. 24(1) 19-24 (1934)