How to solve the interference of video transmission in monitoring?

In monitoring, the phenomenon of interfering with video transmission has caused us headaches. Here are some common interference phenomena and solutions. We hope to help you!

First, the image is transmitted in oblique strips

This may be because the monitoring system operating environment has 0-6MHz harmonics and multiplier interference, and there is a certain extent, this time you can use video transmission anti-jamming device, video cable shielded network cable is greater than 64 mesh. (Note for elevators: Tensile strength of video cables. There are special self-supporting flat composite elevator monitoring cables on the market. These cables combine video coaxial cables, power cables, data cables and steel strands to form a single cable. Flat ribbon cable, so that the tension of the entire cable is taken by the strand, the tensile strength is very good, and the signal cable will not be pulled off due to gravity during elevator operation.

Second, the image distortion (normal clarity)

This may be because the video signal amplitude is too strong to cause the monitor overload to detect the video amplitude of the camera. The standard range is 1Vpp-1.2Vpp.

Third, the image has a horizontal scrolling ripple

This may be because there is a problem with poor filtering of the power supply in the monitoring system. There is a low-frequency interference of 50 Hz. Use an alternative method to identify the source of the interference and replace or repair it.

Fourth, the device under normal circumstances, the image disappears or produces a very messy black and white light with distorted signal

This may be because the monitoring system's working environment has 0-6MHz harmonics and doubler interference, and the amplitude is very strong. The YD-V/RF38 video transmission anti-jammer is used to exceed the amplitude of the video signal. Since the interference signal is strong, pay attention to the signal access resistance. Before disturbing the transmitting end, it should be able to watch normally. The video cable connected to the transmitting end of the camera and the anti-jamming device is a high-shielded or multi-layered shielded cable and is reliably connected. The ordinary video cable can be used for transmission. (Note for elevators: tensile strength of video cables).

DUPLEX STAINLESS STEEL

Duplex Stainless Steels Available

Yuhong Group supplies LDX2101, 2205, Ferralium 255, Zeron 100 and LDX2507 in the form of plate, sheet, strip, bar, pipe, tubing, pipe fittings, flanges and weld wire.


Duplex Stainless Steel Overview

Duplex Stainless Steels, also referred to as austenitic-ferritic stainless steels, are a family of grades with about equal proportions of ferrite and austenite. These steels have a duplex microstructure which contributes to their high strength and high resistance to stress corrosion cracking. Due to their high content of chromium, nitrogen and molybdenum, duplex steels offer good resistance to local and uniform corrosion. Duplex stainless steels have good weldability.


Today, modern duplex stainless steels can be divided into three groups:
Lean Duplex such as LDX2101
Standard Duplex such as 2205, the work-horse grade accounting for more than 80% of duplex usage
Super Duplex such as Ferralium 255 and Zeron 100 and LDX2507

Of the duplex grades, duplex 2205 is the most widely used. However, the super duplex steels like Zeron® 100 and LDX2507 are excellent for servicing severe corrosive environments, such as offshore and marine applications. Lean duplex 2101 is available as an economic alternative to 300 series stainless steels.


What are the Characteristics of Duplex Stainless Steels ?
Very good resistance to uniform corrosion
Very good resistance to pitting and crevice corrosion
High resistance to stress corrosion cracking and corrosion fatigue
High mechanical strength
Good sulfide stress corrosion resistance
Good abrasion and erosion resistance
Good fatigue resistance high energy absorption
Low thermal expansion
Good weldability


In what Applications are Duplex Stainless Steels® used ?
Oil and gas equipment
Offshore technology
Seawater desalination plants
Chemical industry, especially when handling chlorides
Flue-gas cleaning
Desalination plants and seawater systems
Pulp and paper industry
Cargo tanks and pipe systems in chemical tankers
Firewalls and blast walls on offshore platforms
Bridges
Storage tanks
Pressure vessels, reactor tanks, and heat exchangers
Rotors, impellers and shafts

Duplex Steel Welded Pipe

Duplex Steel Welded Pipe,Stainless Steel Welded Pipe,Duplex Steel Butt Welded Pipe

YUHONG GROUP CO.,LIMITED , https://www.alloypipeline.com

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