CA992761A - Automatic variable filters for use in scanned spectrometers and the like - Google Patents

Automatic variable filters for use in scanned spectrometers and the like

Info

Publication number
CA992761A
CA992761A CA178,937A CA178937A CA992761A CA 992761 A CA992761 A CA 992761A CA 178937 A CA178937 A CA 178937A CA 992761 A CA992761 A CA 992761A
Authority
CA
Canada
Prior art keywords
spectrometers
scanned
automatic variable
variable filters
filters
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA178,937A
Other languages
English (en)
Other versions
CA178937S (en
Inventor
Joseph A. Vergato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Applied Biosystems Inc
Original Assignee
Perkin Elmer Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Perkin Elmer Corp filed Critical Perkin Elmer Corp
Application granted granted Critical
Publication of CA992761A publication Critical patent/CA992761A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1217—Frequency selective two-port networks using amplifiers with feedback using a plurality of operational amplifiers

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectrometry And Color Measurement (AREA)
CA178,937A 1972-08-24 1973-08-16 Automatic variable filters for use in scanned spectrometers and the like Expired CA992761A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28339972A 1972-08-24 1972-08-24

Publications (1)

Publication Number Publication Date
CA992761A true CA992761A (en) 1976-07-13

Family

ID=23085879

Family Applications (1)

Application Number Title Priority Date Filing Date
CA178,937A Expired CA992761A (en) 1972-08-24 1973-08-16 Automatic variable filters for use in scanned spectrometers and the like

Country Status (6)

Country Link
JP (1) JPS4960749A (enExample)
AU (1) AU5923873A (enExample)
CA (1) CA992761A (enExample)
DE (1) DE2341628A1 (enExample)
FR (1) FR2197460A5 (enExample)
IT (1) IT990286B (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2739173B2 (de) * 1977-08-31 1979-11-15 Wabco Fahrzeugbremsen Gmbh, 3000 Hannover Schaltungsanordnung zum Unwirksammachen von Sensorstörsignalen
JPS5961757A (ja) * 1982-09-30 1984-04-09 Shimadzu Corp 分光螢光光度計

Also Published As

Publication number Publication date
FR2197460A5 (enExample) 1974-03-22
DE2341628A1 (de) 1974-03-07
IT990286B (it) 1975-06-20
AU5923873A (en) 1975-02-20
JPS4960749A (enExample) 1974-06-12

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