Density measuring device

Details Density measuring device Density measuring device

1976-09-16

1978-10-31

Evans, F. L.

Optics: measuring and testing

Refraction testing

Prism engaging specimen

356178, 356186, 356203, G01J 350

Patent

active

041231716

ABSTRACT:
A density measuring device for easily and quickly measuring the optical densities of original pictures which is characterized in that an original picture is scanned by a scanning device to obtain electrical signals of the original picture, the signals are then converted into secondary electrical signals corresponding to the optical density of the original picture by means of a logarithmic converting circuit, calibration signals generated by a calibration signal generator are added to the secondary electrical signals, and thus obtained combined signals are displayed on a wave-form monitor.

REFERENCES:
patent: 3809482 (1974-05-01), Aslund et al.
patent: 3876824 (1975-04-01), Hipwell
Gal'perin et al., Soviet Physics -- Crystallography, vol. 16, No. 1, Jul.-Aug., 1971, pp. 209-211.
Farber et al., Electronics, Dec. 1, 1961, pp. 38-41.
Arndt et al., Journal of Scientific Instruments (Journal of Physics E), series 2, vol. 1, 1968, pp. 510-516.

Affiliated with

Also associated with

Rating

Density measuring device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Density measuring device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Density measuring device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1832920