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RU2002119167A - Device for determining the accuracy of measuring the critical fusion flicker frequency - Google Patents

Device for determining the accuracy of measuring the critical fusion flicker frequency

Info

Publication number
RU2002119167A
RU2002119167A RU2002119167/14A RU2002119167A RU2002119167A RU 2002119167 A RU2002119167 A RU 2002119167A RU 2002119167/14 A RU2002119167/14 A RU 2002119167/14A RU 2002119167 A RU2002119167 A RU 2002119167A RU 2002119167 A RU2002119167 A RU 2002119167A
Authority
RU
Russia
Prior art keywords
frequency
input
accuracy
measuring
output
Prior art date
Application number
RU2002119167/14A
Other languages
Russian (ru)
Other versions
RU2223693C1 (en
Inventor
Валерий Витальевич Роженцов
Тать на Александровна Лежнина
Татьяна Александровна Лежнина
Original Assignee
Марийский государственный технический университет
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 Марийский государственный технический университет filed Critical Марийский государственный технический университет
Priority to RU2002119167/14A priority Critical patent/RU2223693C1/en
Publication of RU2002119167A publication Critical patent/RU2002119167A/en
Application granted granted Critical
Publication of RU2223693C1 publication Critical patent/RU2223693C1/en

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Landscapes

  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Claims (1)

Устройство для определения точности измерения критической частоты слияния мельканий, содержащее переключатель режимов, генератор линейно изменяющегося напряжения, преобразователь напряжение-частота, источник световых импульсов, вычислитель и блок индикации, выход переключателя режимов соединен со входом генератора, выход которого через преобразователь напряжение-частота соединен с входом источника световых импульсов и вторым входом вычислителя, выход которого соединен с входом блока индикаторов, отличающееся тем, что в него дополнительно введены первый-пятый ключи "Увеличение частоты непрерывное", "Уменьшение частоты непрерывное", "Увеличение частоты дискретное", "Уменьшение частоты дискретное" и "Запись частоты" соответственно, первый, второй и третий одновибраторы, причем выходы первого и второго ключей соединены со входами переключателя режимов, выходы третьего, четвертого и пятого ключей соединены со входами первого, второго и третьего одновибраторов соответственно, выходы первого и второго одновибраторов соединены со входами переключателя режимов, выход третьего одновибратора соединен с первым входом вычислителя.A device for determining the accuracy of measuring the critical fusion flicker frequency, containing a mode switch, a ramp generator, a voltage-frequency converter, a light pulse source, a computer and an indication unit, the output of the mode switch is connected to the generator input, the output of which is connected to the voltage-frequency converter with the input of the light pulse source and the second input of the calculator, the output of which is connected to the input of the indicator block, characterized in that in it The first and fifth keys “Increasing the frequency continuous”, “Decreasing the frequency continuous”, “Increasing the frequency discrete”, “Decreasing the frequency discrete” and “Recording frequency” respectively, the first, second and third one-shots, the outputs of the first and second keys are connected with the inputs of the mode switch, the outputs of the third, fourth and fifth keys are connected to the inputs of the first, second and third one-shots, respectively, the outputs of the first and second single-vibrators are connected to the inputs of the mode switch, the output of tego monostable coupled to a first input of a calculator.
RU2002119167/14A 2002-07-16 2002-07-16 Device for determining critical flicker fusion frequency measurement accuracy RU2223693C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2002119167/14A RU2223693C1 (en) 2002-07-16 2002-07-16 Device for determining critical flicker fusion frequency measurement accuracy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2002119167/14A RU2223693C1 (en) 2002-07-16 2002-07-16 Device for determining critical flicker fusion frequency measurement accuracy

Publications (2)

Publication Number Publication Date
RU2002119167A true RU2002119167A (en) 2004-01-20
RU2223693C1 RU2223693C1 (en) 2004-02-20

Family

ID=32173021

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2002119167/14A RU2223693C1 (en) 2002-07-16 2002-07-16 Device for determining critical flicker fusion frequency measurement accuracy

Country Status (1)

Country Link
RU (1) RU2223693C1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1498460A1 (en) * 1987-07-27 1989-08-07 Особое Конструкторское Бюро Биологической И Медицинской Кибернетики Apparatus for measuring criticyl flash fusion frequency
GB2222524A (en) * 1988-09-12 1990-03-14 Jimbo Engineering Corp Flicker-fusion apparatus
RU2026008C1 (en) * 1990-02-05 1995-01-09 Марийский политехнический институт Device for testing critical frequency of merging of flickerings
RU2164779C1 (en) * 1999-12-24 2001-04-10 Марийский государственнывй технический университет, Method for evaluating critical light flicker fusion frequency

Also Published As

Publication number Publication date
RU2223693C1 (en) 2004-02-20

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Legal Events

Date Code Title Description
MM4A The patent is invalid due to non-payment of fees

Effective date: 20040717