CN109379513A - It is a kind of to reproduce black-and-white television video imaging apparatus with oscillograph - Google Patents
It is a kind of to reproduce black-and-white television video imaging apparatus with oscillograph Download PDFInfo
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- CN109379513A CN109379513A CN201811275780.5A CN201811275780A CN109379513A CN 109379513 A CN109379513 A CN 109379513A CN 201811275780 A CN201811275780 A CN 201811275780A CN 109379513 A CN109379513 A CN 109379513A
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- oscillograph
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
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- Closed-Circuit Television Systems (AREA)
Abstract
The present invention provides a kind of oscillograph reproduction black-and-white television video imaging apparatus, is related to technical field of teaching demonstration instruments.The present invention is by the field-scanning circuit of black and white television set by the vertical deflection system of voltage output to oscillograph；For the voltage exported by the line-scan circuit of black and white television set by monostable linear time delay circuit, the delay time of delay circuit is the μ s of t < 64, the horizontal deflection system of the voltage transmission that monostable linear time delay circuit is exported to oscillograph；After being connected again by the video amplifier circuit output end of black and white television set with Z axis port, the display screen of oscillograph be on can show video image.The device overcomes the problem of oscillograph can not show video image, gives the intuitive perceptual knowledge of people, convenient for the deep understanding to oscillograph, is conducive to teaching and scientific research.
Description
Technical field
The present invention relates to technical field of teaching demonstration instruments more particularly to a kind of oscillograph reproduction black-and-white television video figures
As device.
Background technique
Oscillograph (Oscilloscope) is a kind of electronic measuring instrument that purposes is very extensive.It can be invisible
Converting electrical signal at observable image, be a kind of electronic measuring instrument that can show voltage signal dynamic waveform, oscillography
Device can not only image current table, voltmeter measure electric current, voltage like that, can be with the period of measuring signal, frequency, the equal telecommunications in position
Number, by cooperating various sensors, non electrical quantity is converted into electricity, it is non-pressure, vibration, sound, light, heat etc. can be measured with it
Electric signal can not be come out the vision signal received by oscilloscope display.
Television set (Television), which refers to, transmits movable image frame and audio signal using electronic technology and equipment, i.e.,
Television receiver is also important broadcast and video communication tool, and television set is earliest by Britain engineer John Luo Jibei
Er De is invented in nineteen twenty-five.The TV electronically movable visual pattern of instant delivery.Similar with film, TV utilizes human eye
Persistence of vision effect show the static image of a frame frame gradual change, form visual live image.Television system transmitting terminal handle
Each fine fraction of scenery is sequence transmission after electric signal by brightness and chroma conversion.Corresponding geometric position is pressed in receiving end
Show brightness and the coloration of each fine fraction to reappear whole picture original image.The progress of science and technology, is TV rapid proliferation
One major reason, television set is now very universal, applies in industrial scientific and enters family.
Summary of the invention
It is a kind of black with oscillograph reproduction the technical problem to be solved by the present invention is in view of the above shortcomings of the prior art, provide
White appliances regard video imaging apparatus, which overcomes the problem of oscillograph can not show video image, recognize to the intuitive perception of people
Know, convenient for the deep understanding to oscillograph, is conducive to teaching and scientific research.
In order to solve the above technical problems, the technical solution used in the present invention is:
The present invention provides a kind of oscillograph reproduction black-and-white television video imaging apparatus, including black and white television set, monostable
Linear time delay circuit, oscillograph；
The black and white television set includes field-scanning circuit, video amplifier circuit, line-scan circuit；The field-scanning circuit is for defeated
The linear voltage that field frequency is 25 hertz, the output end of field-scanning circuit are connected with vertical deflection system input terminal out；The view
Electric discharge road is connected for exporting vision signal with the Z axis port of oscillograph；The line-scan circuit is used to export line frequency
The output end of 625 hertz of voltage, line-scan circuit is connected with the input terminal of monostable linear time delay circuit；
The monostable linear time delay circuit for the voltage that line-scan circuit exports to be delayed, linearly prolong by monostable
When circuit output end be connected with horizontal deflection system input terminal；
The oscillograph includes vertical deflection system, Z axis port, horizontal deflection system；The vertical deflection system is used for
Receive the voltage of field-scanning circuit output end output；The Z axis port is used to receive the vision signal of video amplifier circuit output；It is described
Horizontal deflection system is used to receive the voltage of monostable linear time delay circuit output.
The delay time of the monostable linear time delay circuit is the μ of t < 64 s.
The beneficial effects of adopting the technical scheme are that a kind of oscillograph reproduction black and white provided by the invention
Television video image device, the device overcome the problem of oscillograph can not show video image, are filled with oscillograph in video
The blank in broadcasting field lays the foundation for many-sided application of oscillograph, the intuitive perceptual knowledge of people is given, convenient for oscillograph
Deep understanding enriches experiment content, is conducive to teaching and scientific research.
Detailed description of the invention
Fig. 1 is oscillograph reproducing video image device figure provided in an embodiment of the present invention；
Fig. 2 is oscillograph schematic diagram provided in an embodiment of the present invention；Wherein, 1, vertical deflection system input terminal, 2, level
Deflection system input terminal；
Fig. 3 is monostable linear time delay circuit circuit diagram provided in an embodiment of the present invention；
Fig. 4 is oscilloscope display figure provided in an embodiment of the present invention；
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
As shown in Figure 1, the method for the present embodiment is as described below.
It is a kind of to reproduce black-and-white television video imaging apparatus with oscillograph, including black and white television set, monostable are linearly delayed electricity
Road, oscillograph；
The black and white television set includes field-scanning circuit, video amplifier circuit, line-scan circuit；The field-scanning circuit is for defeated
The linear voltage that field frequency is 25 hertz, the output end of field-scanning circuit are connected with vertical deflection system input terminal out；The view
Electric discharge road is connected for exporting vision signal with the Z axis port of oscillograph；The line-scan circuit is used to export line frequency
The output end of 625 hertz of voltage, line-scan circuit is connected with the input terminal of monostable linear time delay circuit；
The kinescope of black and white television set is using magnetic deflection magnetic focusing, and row field adds linear magnetic field (to be all linear when work
Scanning), 25 hertz of field frequency, 625 hertz of line frequency, grating is formed, cathode forms image plus vision signal.
The monostable linear time delay circuit for the voltage that line-scan circuit exports to be delayed, linearly prolong by monostable
When circuit output end be connected with horizontal deflection system input terminal；As shown in Figure 3；
The oscillograph includes vertical deflection system, Z axis port, horizontal deflection system；The vertical deflection system is used for
Receive the voltage of field-scanning circuit output end output；The Z axis port is used to receive the vision signal of video amplifier circuit output；It is described
Horizontal deflection system is used to receive the voltage of monostable linear time delay circuit output；As shown in Figure 2.
The oscilloscope tube of oscillograph is using electric deflection electrofocusing, and electron beam is constant, horizontal-deflection plate ledger line when work
Property deflection voltage (linear scan), vertical plates add measured signal (nonlinear scanning, measured signal be it is linear when be linearly to sweep
Retouch), synthetic waveform.
The delay time of the monostable linear time delay circuit is the μ of t < 64 s.
The model instek GOS-620 of oscillograph in the present embodiment；The model video display dragon 218- of black and white television set
88B；
It is to take the voltage being added on row field deflection coil a part (can be with oscillograph reproducing video image method
By decompression, oscillograph has enlarging function) it is added in the horizontal vertical deflection input terminal of oscillograph, vision signal is added in oscilloscope tube
Z axis input terminal reproduces the realization of black-and-white television video imaging apparatus, specific steps with oscillograph by a kind of are as follows:
Step 1: by the field-scanning circuit of black and white television set by the vertical deflection system of voltage output to oscillograph；
Step 2: monostable linear time delay circuit, delay are passed through by the voltage that the line-scan circuit of black and white television set exports
The delay time of circuit is t=59 μ s, the horizontal deflection of the voltage transmission that monostable linear time delay circuit is exported to oscillograph
System；
Because line-sweep voltage is square wave (forming high frequency linearity magnetic field needs), it is applied directly to be formed on horizontal input terminal
Linear scan, it is therefore desirable to increase a circuit and carry out transition；Method is that (delay time is slightly less than with a monostable linear circuit
The sweep time of a line), monostable circuit is triggered synchronization by line frequency, and then the output end of monostable linear circuit is added in and is shown
The horizontal input terminal of wave device.
Step 3: after being connected by the video amplifier circuit output end of black and white television set with Z axis port, the display screen of oscillograph
Video image can be shown on being, as shown in Figure 4.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify to technical solution documented by previous embodiment, or some or all of the technical features are equal
Replacement；And these are modified or replaceed, model defined by the claims in the present invention that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (2)
1. a kind of reproduce black-and-white television video imaging apparatus with oscillograph, it is characterised in that: including black and white television set, monostable line
Property delay circuit, oscillograph；
The black and white television set includes field-scanning circuit, video amplifier circuit, line-scan circuit；The field-scanning circuit is used for output field
The linear voltage that frequency is 25 hertz, the output end of field-scanning circuit are connected with vertical deflection system input terminal；The view electric discharge
Road is connected for exporting vision signal with the Z axis port of oscillograph；The line-scan circuit is 625 hertz for exporting line frequency
The output end of voltage hereby, line-scan circuit is connected with the input terminal of monostable linear time delay circuit；
For the voltage that line-scan circuit exports to be delayed, monostable is linearly delayed electricity the monostable linear time delay circuit
The output end on road is connected with horizontal deflection system input terminal；
The oscillograph includes vertical deflection system, Z axis port, horizontal deflection system；The vertical deflection system is for receiving
The voltage of field-scanning circuit output end output；The Z axis port is used to receive the vision signal of video amplifier circuit output；The level
Deflection system is used to receive the voltage of monostable linear time delay circuit output.
2. a kind of oscillograph reproduction black-and-white television video imaging apparatus according to claim 1, it is characterised in that: described
The delay time of monostable linear time delay circuit is the μ of t < 64 s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811275780.5A CN109379513A (en) | 2018-10-30 | 2018-10-30 | It is a kind of to reproduce black-and-white television video imaging apparatus with oscillograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811275780.5A CN109379513A (en) | 2018-10-30 | 2018-10-30 | It is a kind of to reproduce black-and-white television video imaging apparatus with oscillograph |
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| Publication Number | Publication Date |
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| CN109379513A true CN109379513A (en) | 2019-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811275780.5A Pending CN109379513A (en) | 2018-10-30 | 2018-10-30 | It is a kind of to reproduce black-and-white television video imaging apparatus with oscillograph |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111323627A (en) * | 2020-02-27 | 2020-06-23 | 京东方科技集团股份有限公司 | Digital oscilloscope and oscillogram generation system |
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| CN106162250A (en) * | 2016-07-21 | 2016-11-23 | 窦翠云 | A kind of photovoltaic battery panel group string Voltage Stability Control method |
| CN107707847A (en) * | 2017-10-17 | 2018-02-16 | 唐碧琼 | Using the television scanning system of distortion correction circuit |
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2018
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1317694A (en) * | 2000-03-23 | 2001-10-17 | 特克特朗尼克公司 | General oscilloscope having indicating ability of digital TV signals |
| CN2849728Y (en) * | 2005-06-10 | 2006-12-20 | 宁波中策东泓电子发展有限公司 | Digital display oscilloscope |
| CN101211738A (en) * | 2006-12-30 | 2008-07-02 | 康佳集团股份有限公司 | CRT display equipment and its CRT |
| CN103197730A (en) * | 2012-01-09 | 2013-07-10 | 陈华玲 | System and method for sending Chinese culture and foreign culture information with display platform |
| CN103604967A (en) * | 2013-11-29 | 2014-02-26 | 青岛汉泰电子有限公司 | Oscilloscope with video playing function |
| CN106162250A (en) * | 2016-07-21 | 2016-11-23 | 窦翠云 | A kind of photovoltaic battery panel group string Voltage Stability Control method |
| CN107707847A (en) * | 2017-10-17 | 2018-02-16 | 唐碧琼 | Using the television scanning system of distortion correction circuit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111323627A (en) * | 2020-02-27 | 2020-06-23 | 京东方科技集团股份有限公司 | Digital oscilloscope and oscillogram generation system |
| CN111323627B (en) * | 2020-02-27 | 2021-10-12 | 京东方科技集团股份有限公司 | Digital oscilloscope and oscillogram generation system |
| US11874302B2 (en) | 2020-02-27 | 2024-01-16 | Boe Technology Group Co., Ltd. | Digital oscilloscope and oscillogram generation system |
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Application publication date: 20190222 |