SU1623604A1 - Device for measuring critical flicker fusion frequency - Google Patents
Device for measuring critical flicker fusion frequency Download PDFInfo
- Publication number
- SU1623604A1 SU1623604A1 SU894630216A SU4630216A SU1623604A1 SU 1623604 A1 SU1623604 A1 SU 1623604A1 SU 894630216 A SU894630216 A SU 894630216A SU 4630216 A SU4630216 A SU 4630216A SU 1623604 A1 SU1623604 A1 SU 1623604A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- input
- output
- block
- reliability
- switch
- Prior art date
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Eye Examination Apparatus (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
Изобретение относитс к медицинской технике и может быть использовано при диагностике профтехзаболеааний. Цель изобретени - повышение достоверности результатов исследований путем измерени частоты мельканий в трех различных спектральных област х, а также повышение надежности устройства путем упрощени его конструкции. Устройство содержит генератор 1 импульсов, выдающий сформированные импульсы, трехцветный источник 2 световых импульсов дл проверки восприимчивости зрительного анализатора к различным спектрам света, счетчик 3 с двухразр дным дисплеем дл непосредственного отчета текущей частоты, блок 4 визуального контрол дл проверки работоспособности всего устройства и контрол индицируемого цвета, блок 5 ключей, электронный коммутатор 6, блок 7 переключателей, распределитель 8 управл ющих импульсов. 4 ил.The invention relates to medical technology and can be used in the diagnosis of occupational diseases. The purpose of the invention is to increase the reliability of research results by measuring the frequency of flashes in three different spectral regions, as well as to increase the reliability of the device by simplifying its design. The device contains a pulse generator 1, generating generated pulses, a three-color source of 2 light pulses to check the susceptibility of the visual analyzer to various light spectra, a counter 3 with a two-bit display for direct reporting of the current frequency, a visual control unit 4 for checking the health of the entire device and monitoring the displayed color , block of 5 keys, electronic switch 6, block of 7 switches, distributor 8 control pulses. 4 il.
Description
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Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU894630216A SU1623604A1 (en) | 1989-01-04 | 1989-01-04 | Device for measuring critical flicker fusion frequency |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU894630216A SU1623604A1 (en) | 1989-01-04 | 1989-01-04 | Device for measuring critical flicker fusion frequency |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1623604A1 true SU1623604A1 (en) | 1991-01-30 |
Family
ID=21419581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU894630216A SU1623604A1 (en) | 1989-01-04 | 1989-01-04 | Device for measuring critical flicker fusion frequency |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1623604A1 (en) |
-
1989
- 1989-01-04 SU SU894630216A patent/SU1623604A1/en active
Non-Patent Citations (1)
Title |
---|
Авторское свидетельство СССР № 1333306. кл. А 61 В 5/16, 1987. * |
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