Avoid the interference of wireless electronic crane signal interference

Wireless electronic crane scale is an electronic scale that is used very frequently nowadays. Although the use of wireless electronic crane scale is extremely convenient, there are some minor drawbacks that make everyone extremely headache. Like today's small editorial content for everyone: Avoid the beginning of wireless electronic crane signal interference. When we see this problem, everyone not only has the feeling of feeling in the heart. Because this is one of the most common problems people have when using wireless electronic cranes. So let us understand together, this article gives everyone a good way to do it.

Wireless electronic hanging scales are favored by a wide range of users for their advantages such as rapid weighing, easy installation, and space saving. Since such a good product, what are its drawbacks? The only problem that causes headaches is signal interference. The interference problem of wireless electronic crane scales is caused by the presence of interference sources and affects the electronic hanging scale instruments through certain coupling channels.

With the rapid development of the level of weighing technology in China, the replacement of electronic components has further improved the interference of wireless electronic crane scales. In order to reduce these effects, interference suppression should be considered when designing the instrument, and the ability of anti-jamming of wireless electronic crane scale should be improved as much as possible. So, how to solve the anti-interference problem of electronic crane scale? What is the method?

To avoid the interference problem of wireless electronic cranes, the following methods can be implemented:

(1) Shielding: In order to further prevent the interference of the electric field of the wireless electronic crane scale, the signal line may be wrapped with a metal mesh (or metal skin), and then a shielded cable may be directly used as a layer of insulator or signal line on the bread, and the shielding layer may be grounded. . Because the non-magnetic shielding layer has no effect on the magnetic field of 50 Hz, if necessary, the signal line can be threaded into the iron pipe to make the signal line magnetically shielded. After electrostatic shielding, the induced potential can be reduced to 1/100~1/1000.

(B) Filtering: For the DC signal with very slow change speed, add the filter circuit to the input end of the wireless electronic hanging scale instrument so that the interference mixed with the effective signal is attenuated to the minimum. It is common to add two to three RC filter circuits before the input stage, and to use a double T filter with a lower internal resistance.

(3) Twisting of signal lines: For electromagnetic induction, try to keep the wireless electronic crane scale away from the strong electrical equipment and power network. Adjusting the direction of the trace and reducing the loop area of ​​the conductor are all necessary. Only the direction of the trace is adjusted. The two signal lines are twisted with a short pitch, and the interference voltage can be reduced to 1/10~1/100. For electrostatic induction, when the two signal lines are twisted and twisted, two wires are twisted and the two wires are twisted. When the distance from the signal line to the interference source is approximately equal (usually twisting the wire into a pitch 20 times the diameter), the area surrounded by the signal circuit can be greatly reduced, allowing the electric field to enter through the inductive coupling on the two signal lines. The series-mode interference potential difference of the loop is greatly reduced.

(4) Cancellation: The double-integration type and pulse width-adjustable wireless electronic crane scale digital instrument performs A/D conversion on the average value of the input signal instead of the instantaneous value, and can average out some serial-mode interference.

(e) Try to separate the signal line from the power line. The current flow of the wire is processed in the opposite direction under permissive conditions to reduce the mutual interference of the magnetic field of the wireless electronic hanging scale; the signal wire and the power line are not allowed to be laid in parallel, and the same thread hole should not enter the electrons. Hanging scale inside the instrument. The low-level signal line should be connected to the adjacent position of the signal terminal with the shortest twisted wire as short as possible to reduce the area of ​​inductive interference, and it is absolutely forbidden to use the same cable for the power line and signal line. Do not use the same connector for high and low levels. When it is a last resort, separate the high and low lines next to the connector and ground and ground terminals.

In practical applications, it is necessary to find out and combine methods such as shielding, grounding, twisting, balancing, filtering and isolation to cut off the coupling channel to suppress interference. At the same time, the display instrument is required to have high temperature resistance, low temperature, high pressure, corrosion, high viscosity, and good dynamic characteristics to reduce the measurement error of the measured parameter.

Through the above understanding, I believe that everyone has made it clear that this article avoids the interference of wireless electronic crane signal interference. If there is anything you don't understand, please feel free to contact us. This article is provided by Shanghai Shiqian Industrial Co., Ltd. electronic crane scale Xiaobian, thank you for your continuous support.

Readers who have read this article also like: Domestic electronic scales need to go to the international market!

Double-color Geomembrane is one kind of Hdpe Geomembrane with two side in different color. This Geomembrane liners can be used as Aquaculture, Landfill Water, Treatment System , Mining etc, area.

 Black and White geomembranes offer the advantages of both a light reflective white surface and a black damage detection layer.

The liner`s UV resistant white surface reflects light – minimizing associated heat absorption by as much as 50% – and thus reducing the potential for membrane wrinkling due to thermal expansion and contraction. Traditional black HDPE geomembranes can reach temperatures of 160°F or more and experience thermal expansion exceeding 1% depending on temperature swings.
Visual inspection of the liner for damage is greatly improved. Damage is indicated by any scarring beyond the white, light reflective layer as the contrasting black primary layer is clearly exposed.

The following parameters based on the GRI GM13 for your reference. 

If you have special needs, please feel free to tell us. 

Geomembrane Main Application

Aquaculture: 

Using the geomembrane anti-seepage feature; 

Geomembrane liners can be used as fish ponds, shrimp pond, and other aquaculture.

Landfill: 

HDPE geomembrane is the most widely used in landfill anti-seepage engineering material,

The use of main parts of the bottom of the landfill liner, landfill sealing cover, leachate regulating pool liner, etc.

HDPE geomembrane structure with smooth surface and textured surface, suitable for different sites.

Water Treatment System: 

Geomembrane is applied to the adjustment of the power plant and sewage treatment plants pool;

and a series of water treatment systems.

Mining: 

Geomembrane suitable mining: washing pool, pool heap leaching, heap yard, dissolving tank, tank, 

storage area, the bottom line of the tailings seepage control, etc

Double-color Geomembrane

Double-Color Geomembrane,Double Textured Hdpe Geomembrane,Waterproof Hdpe Geomembrane,Hdpe Geomembrane

Shandong Tianhai New Materials Engineering Co., Ltd , https://www.chinatinhy.com