A Continuous, Automatic Tristimulus Integrator for Use with the Recording Spectrophotometer

摘要: An automatic tristimulus integrator has been developed for use with the General Electric Recording Spectrophotometer. Selsyn transmitters mounted on spectrophotometer relay wave-length and reflectance to computer where integration is carried out by means of mechanical analog techniques. The integrations are performed continuously while curve being drawn at either fast or slow speed. Tristimulus values any may, therefore, be obtained operator no additional expenditure time other than that required record return counters zero. precision prototype about ±0.0005 absolute accuracy approximately ±0.003.