title: [A simple highly sensitive recording microspectrophotometer].
abstract: A design of the recording microspectrophotometer is described. The instrument possesses an absolutely flat base line and quantum-noise limited detection threshold. Two principal elements of the design are the "jumping" stage, and the logarithmic amplifier with the phase-sensitive detector which converts the photomultiplier output into the optical density signal. The performance of the instrument is illustrated by the recordings of visual pigment spectra in single photoreceptors.
mesh_terms: D000669:Amplifiers, Electronic; D003584:Cytological Techniques / Q000295:instrumentation*; D004867:Equipment Design; D013053:Spectrophotometry / Q000295:instrumentation*
vernacular_title: Prostoĭ vysokochuvstvitel'nyĭ registriruiushchiĭ mikrospektrofotometr.