SU507961A1 - Method of measuring temporal frequency characteristics of transmitting television tubes - Google Patents
Method of measuring temporal frequency characteristics of transmitting television tubesInfo
- Publication number
- SU507961A1 SU507961A1 SU1989691A SU1989691A SU507961A1 SU 507961 A1 SU507961 A1 SU 507961A1 SU 1989691 A SU1989691 A SU 1989691A SU 1989691 A SU1989691 A SU 1989691A SU 507961 A1 SU507961 A1 SU 507961A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- video signal
- signal
- frequency
- tube
- light flux
- Prior art date
Links
Landscapes
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
.хода генератора 1 сигнш поступает на вход| модул тора света 2.,, на выходе которого действует модупированньш во времени по закону синусоидапьного колебани световойThe generator signal 1 signal is fed to the input | light modulator 2., at the output of which the effect is modulated in time according to the law of sinusoidal oscillation of light
поток. Далее модулированный световой поток проходит через опт|{ческий дискретный фильт 3 и попадает на мишень передающей телевизионной трубки 4. Таким образом, на мишени передающей трубки 4 создаютс дискретные участки, ча которых потенциальный рельеф соответс1ву ет закону изменени светового потока, а темноврй ток неосвещенных участков мише ни несет информацию о неравномерности фона передающей трубки 4, С выхода телевизионной трубки 4 сигнал попадает на блоки дл стробировани 5 и 6, которые раздел ют суммйрный сигнал, несущий информацию о временных частотных свойствах передающей трубки 4 и о помехе, обуслов ленной неравномерностью фона, и сигнал неравномерности фона передающей трубки 4. Стробированные сигналы поступают на демодул торы 7, на выходе .которых выдел ютс огибающие стробированных сигналов В блоке дл компенсации неравномерноети 8 да сигнала, -несущего информацию о временных частотных свойствах, устран ютс паразитные . составл ющие от неравноме ности ({юна передающей трубки 4. С выхода блока дл компенсации нерав- номерности 8 сигнал поступает на индикато нбе устройство 9, в качестве которого могу быть применены стрелочный прибор или осциллограф . flow. Next, the modulated light flux passes through the optical | {discrete filter 3 and hits the target of the transmitting television tube 4. Thus, the target of the transmitting tube 4 creates discrete sections, where the potential relief corresponds to the law of variation of the light flux, and the dark current of the unlit areas The target carries information about the irregularity of the background of the transmitting tube 4. From the output of the television tube 4, the signal gets to the gates for gating 5 and 6, which separate the summuirny signal carrying information about the time the frequency properties of the transmitting tube 4 and the interference caused by the uneven background, and the uneven background signal of the transmitting tube 4. The gated signals are sent to the demodulators 7, at the output of which gates envelopes are separated. carrying information about temporal frequency properties, spurious ones are eliminated. the components from the unevenness ({the young transmission tube 4. From the output of the unit to compensate for the unevenness 8), the signal arrives at the indicator device 9, which can be used as a pointer instrument or an oscilloscope.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1989691A SU507961A1 (en) | 1974-01-09 | 1974-01-09 | Method of measuring temporal frequency characteristics of transmitting television tubes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1989691A SU507961A1 (en) | 1974-01-09 | 1974-01-09 | Method of measuring temporal frequency characteristics of transmitting television tubes |
Publications (1)
Publication Number | Publication Date |
---|---|
SU507961A1 true SU507961A1 (en) | 1976-03-25 |
Family
ID=20573729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1989691A SU507961A1 (en) | 1974-01-09 | 1974-01-09 | Method of measuring temporal frequency characteristics of transmitting television tubes |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU507961A1 (en) |
-
1974
- 1974-01-09 SU SU1989691A patent/SU507961A1/en active
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