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11 Feb, 2024 49 Views Author: Cherry Shen

Using a Static Discharge Gun for ESD Simulation

Static Discharge Gun, is also known as ESD Simulation.With the continuous development of automotive electronic technology, the impact of electrostatic discharge on automotive electronic devices is becoming increasingly significant. This article introduces the phenomenon of electrostatic discharge, analyzes the potential damage it can cause to automotive electronic devices, and proposes an automotive electronic anti-static testing method based on an electrostatic discharge tester. Through experimental verification, this method can effectively evaluate the anti-static performance of automotive electronic devices and provide reliable data support for the design and manufacturing of automotive electronic devices.

Electrostatic discharge is a common phenomenon that can cause severe damage to automotive electronic devices. In the field of automotive electronics, electrostatic dischargehas become an important research topic. This article focuses on the application research of an electrostatic discharge tester in anti-static testing for automotive electronics.

Electrostatic discharge refers to the discharge phenomenon caused by the static electricity charge difference between objects. During the operation of a vehicle, static electricity can be generated between the vehicle body and the ambient atmosphere, road surface, etc. When electrostatic discharge occurs, it can generate high-energy electromagnetic waves, which can interfere with or even damage automotive electronic devices.

The impact of electrostatic discharge on automotive electronic devices mainly includes two aspects:

1. Direct electromagnetic interference: Electrostatic discharge can generate high-energy electromagnetic waves that can have destructive effectson the circuits and components of automotive electronic devices. For example, electrostatic discharge may cause short circuits in electronic devices or damage internal components. This type of damage can result in the malfunction of automotive electronic systems and even vehicle breakdown.

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2. Indirect electromagnetic interference: The electromagnetic waves generated by electrostatic discharge can interfere with the normal operation of automotive electronic devices. For example, electrostatic discharge can cause signal distortion in automotive electronic devices, leading to communication failures between devices. This can affect the overall performance of automotive electronic systems and decrease driving safety.

To address the damage and interference caused by electrostatic discharge to automotive electronic devices, many automobile manufacturers have started to pay attention to and research anti-static technologies. Among them, the electrostatic discharge tester is a commonly used tool in anti-static testing for automotive electronics.

The Static Discharge Gun is a device that can simulate and measure electrostatic discharge. It can generate electrostatic discharges of different energy levels to assess the tolerance of automotive electronic devices. By placing automotive electronic devices in the electrostatic discharge tester and conducting appropriate tests, the resistance of automotive electronic devices to electrostatic discharge can be determined.

During anti-static testing, the Static Discharge Gun typically uses discharge modes with different energy levels. These energy levels can cover various electrostatic dischargeconditions in different real-world scenarios. Through testing, the tolerance of automotive electronic devices to electrostatic discharges of different energy levels can be evaluated. The test results can provide manufacturers of automobiles and electronic devices with guidance for improving and optimizing product designs.

The application research of the Static Discharge Gun in anti-static testing for automotive electronics mainly includes the following aspects:

1. Based on the test results from the Static Discharge Gun, the anti-static performance of automotive electronic devices can be evaluated. By testing different energy levels of electrostatic discharge, the tolerance of automotive electronic devices under different electrostatic discharge conditions can be determined. This can assist manufacturers in enhancing the static protection capability of their products and reducing the impact of electrostatic discharge on automotive electronic devices.

2. The Static Discharge Gun can be used to evaluate new materials and technologies. With the continuous development of automotive electronic technology, new materials and technologies are being increasingly applied. These new materials and technologies may exhibit different performance in terms of electrostatic discharge. By subjecting these new materials and technologies to electrostatic discharge testing, their applicability and reliability in automotive electronic devices can be evaluated.

3. The application research of the Static Discharge Gun can provide strong support for the design and manufacturing of automotive electronic devices. Through testing different energylevels of electrostatic discharge, a large amount of data and parameters can be obtained. These data and parameters can be used to optimize the design and manufacturing of automotive electronic devices. For example, based on the test results, circuit designs can be adjusted, and more suitable components can be selected to enhance the anti-static performance of automotive electronic devices.

Furthermore, the methods and techniques used in these Static Discharge Guns for anti-static testing of automotive electronics are crucial. They can contribute to the advancement of automotive electronic technology and improve the immunity of automotive electronic devices against interference. In future research, we can further optimize the design and testing methods of Static Discharge Guns to meet the evolving demands of automotive electronic devices, effectively addressing the safety and reliability challenges posed by electrostatic discharge.

Precautions for using the static discharge gun:

The main purpose of the static discharge gun is to remove static electricity from the surface of the product by using ionized air and eliminating the adhesion caused by static electricity, in order to achieve the purpose of dust removal. Many users do not understand this principle and set the air pressure to the maximum or even the limit. This causes the air velocity to be too fast and causes friction with the product surface, resulting in poor static electricity removal effect and unsatisfactory dust removal effect. Generally, 0.4MPa is more suitable. Another consideration is that the humidity of the compressed air is too high and it has not been dried. When small dust particles encounter moisture, they adhere more firmly to the surface. At this time, simply using an electrostatic gun is difficult to achieve the desired dust removal effect. Purification treatment must be done, which undoubtedly increases production costs. It is recommended to dry and filter the compressed air.

The static discharge gun requires a power supply to be used. The power supply increases the input voltage from 220V or 110V to 4.6KV, and then connects it to the ion needle on the head of the ion air gun through a high-voltage wire. A strong electric field is generated between the ion needle and the gun head, and the high-voltage electric corona discharge at the tip ionizes the air molecules, producing a large number of positive and negative ions at the tip of the ion needle. Then, the ions are blown onto the surface of the charged object by compressed air. When the surface of the charged object is positively charged, the negative ions neutralize it, and vice versa. This achieves the purpose of eliminating static electricity, and the high-speed compressed air can also blow away the dust on the object.

ESD simulator guns (Electrostatic Discharge Generator/Electrostatic Gun/ESD Guns) is in full compliance with IEC 61000-4-2EN61000-4-2ISO10605, GB/T17626.2, GB/T17215.301 and GB/T17215.322.

Using a Static Discharge Gun for ESD Simulation

ESD61000-2_Electrostatic Discharge Simulator

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