This section provides an overview for electrostatic instruments as well as their applications and principles. Also, please take a look at the list of 10 electrostatic instrument manufacturers and their company rankings. Here are the top-ranked electrostatic instrument companies as of November, 2024: 1.Morris Coupling Co., 2.Trek, Inc., 3.Wayne Kerr Electronics, Inc..
Table of Contents
An Electrostatic Instrument is device that measures the voltage of static electricity generated on the surface of an object.
This instrument is equipped with a surface potential sensor that enables non-contact measurement when pointed at the object being measured. Electrostatic Instruments are also called Surface Potentiometers or Electrostatic Potential Meters, and are mainly used in production processes in the manufacturing industry.
Electrostatic Instruments play a crucial role in addressing issues caused by static electricity during the production process. Accurate measurement of static electricity is the first step in implementing preventive measures and evaluating their effectiveness. Depending on the process, these instruments may also be used for continuous monitoring of static electricity generation.
Trouble occurs when charged foreign matter, such as dust, adheres to a charged product. For example, in the painting process, this can cause unevenness in the coating.
Semiconductor components such as integrated circuits can be destroyed by electrostatic discharge.
Devices that operate with small currents and voltages, like electronic balances, weight checkers, and metal detectors, may be affected by electromagnetic noise when static electricity is discharged.
Electrostatic discharge from a charged object to the human body not only causes pain and discomfort to the human body, but can also cause equipment malfunction and ignition of combustible materials.
When the surface of an object is charged and static electricity is generated, an electric field is generated around the object. Electrostatic Instruments measure the strength of this electric field and calculate the electrostatic voltage. The principle of a typical Electrostatic Instrument, such as Surface Potentiometer, is as follows:
The surface potential sensor uses the electrostatic induction phenomenon. When the sensing electrode receives an electrostatic field intensity Eo (proportional to the charging voltage Vo) from a charged object, an induced charge q is accumulated on the surface of the sensing electrode. When a shield plate of a size that covers the entire detection electrode is placed between the detection electrode and the object and rotated at a constant speed, the induced charge q accumulated on the detection electrode is discharged at the moment the shield plate covers it, and when the shield plate passes by, the induced charge q is accumulated again. This periodic movement of charge q, that is, the magnitude of the alternating current Is, depends on the electric field strength, so the charging voltage Vo of the object surface can be obtained by measuring the current Is.
However, in the this measurement method, the measured value depends greatly on the distance between the surface potential sensor and the object to be measured. The further away the object is from the sensor, the weaker the electric field becomes, so it is inevitable that the measured value will appear smaller. Therefore, it is necessary to keep the distance between the surface potential sensor and the object to be measured at the specified distance.
To address this distance-dependent measurement issue, another device is the voltage feedback-type surface potential meter. In this system, a high-voltage power supply is connected to the sensing electrode, and the voltage output of the high-voltage power supply is adjusted so that the alternating current Is becomes zero. Since the current Is stops flowing when the voltage of the object to be measured and the voltage of the sensor are the same, the output voltage of the high-voltage power supply at that time can be said to be equal to the charged voltage of the object to be measured.
To measure the electrostatic charge of a charged object with a typical Electrostatic Instrument, the procedure is as follows:
1. Place the surface potential sensor at the distance specified by Electrostatic Instrument, with the detection electrode of the surface potential sensor parallel to the surface to be measured.
2. Set the measuring range higher than the expected voltage and start measurement. When a rough measurement value is obtained, adjust the measuring range and adopt the measured value.
When measuring with a voltage feedback type surface potential meter, the detection electrode of the surface potential sensor is placed parallel to the surface of the object to be measured, but the distance from the object does not need to be strictly defined. The voltage of the high-voltage power supply is gradually increased to find the point where the alternating current flowing to the detection electrode becomes zero. The output voltage of the high-voltage power supply at that point becomes the charged voltage of the object to be measured, and the unit of measurement value is V or KV. It is important to select an appropriate instrument based on the assumption of the maximum static electricity voltage.
The following mechanisms are known to generate static electricity:
This occurs when overlapping materials are peeled off, such as when a protective film is pulled off a plastic sheet.
Occurs when objects rub against each other, such as when mixing things, taking off clothes, or when motors rotate.
Electrostatic Instrument is used to measure the electrostatic charge of objects exposed to such conditions, such as grinding and powder charging. In particular, semiconductor components are highly likely to fail due to Electrostatic Instrument discharge, so it is necessary to check the inside of the process with Electrostatic Instrument on a regular basis.
The following are specific examples of measurement targets in the production process:
When the generation of static electricity is unavoidable, ionizers and other static eliminators are installed to actively eliminate static electricity, but measurement using Electrostatic Instruments is essential to ensure the effectiveness of such measures.
*Including some distributors, etc.
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Morris Coupling is a family-owned company that was founded in 1941 and is headquartered in Erie, Pennsylvania. Morris is a manufacturer of compression coupling and components for pneumatic conveying and industrial vacuum systems. Morris Coupling has additional manufacturing facilities in Tennessee and Georgia, as well as distribution centers in Mexico, Europe, and Asia for international customers. Morris Coupling 7 product lines include couplings, flex hose, bends, and installation components. Most products are available in multiple configurations.
Wayne Kerr Electronics, Inc. is a manufacturer of analytical and monitoring products originally founded in London, UK, in 1946 before moving to Woburn, Massachusetts, USA. The company produces meters, analyzers, and test devices for various industries. These products include magnetics analyzers, DC bias test units, and impedance analyzers. It also offers additional calibration, technical support, and repair services. The company’s products chiefly serve clients in the electronics, aerospace, and research sectors. Some of its notable customers include the multinational corporations Apple, Siemens, and Intel.
TREK, INC., a designer and manufacturer of high-voltage power amplifiers and highly efficient electrostatic instruments, sensors and monitors, founded in 1981 and headquartered in Colorado, USA. The company offers power supplies for various applications, RF and microwave generators for semiconductor processing, and thermal management solutions. Additionally, it has DC-to-DC converters, optical pyrometers for temperature measurement, gas and liquid flow management products, and vacuum gauges and controllers. These products are used in various industries, including semiconductor manufacturing, industrial processes, and scientific research. The corporation, encompassing a global reach, extends its services across the expanse of the world.
Dou Yee Enterprises, in operation since 1982, is a manufacturer and industrial solutions provider catering to the semiconductor, data storage, electronics, and biomedical sectors. It offers a wide array of products, including cleanroom materials and equipment for electrostatic discharge control, micro contamination control solutions, static shielding bags to protect electronics, moisture barrier bags for safeguarding sensitive equipment from moisture, and desiccants. The company has over 45 strategically located international branch offices, and its manufacturing facilities in Singapore, Malaysia (Seremban), China (Suzhou), France, and Poland adhere to stringent quality standards, holding ISO 9001 and ISO 14001 certifications.
Shishido Electrostatic, Ltd., founded in 1938 as Shishido Shokai, is a manufacturer of static eliminators and measuring instruments, headquartered in Shibuya, Tokyo. Their product line includes static eliminators, measuring instruments, DC high-voltage power supplies, and ionizers. These are designed to address static electricity concerns and create controlled environments in various industrial and commercial settings by effectively managing static electricity. Shishido Electrostatic has obtained ISO 9001 certification, upholding industry standards of quality management.
Haug GmbH & Co. KG, located in Baden-Württemberg, Germany, is a manufacturer of ionizing systems, founded in 1957. Their product line includes ionizing bars, ionizing blowers, ionizing guns, ionizing nozzles, and charging generators. These products are used in various industries to address static electricity concerns, neutralize static charges, remove contaminants, and provide controlled electrostatic charges for industrial processes. The company adheres to industry standards according to ISO 9001:2015 and ISO 14001:2015.
SMC corporation was founded in 1959 and is headquartered in Tokyo, Japan. SMC Corporation manufactures and sells automatic control equipment and filtration equipment. SMC has production facilities in 30 countries, technical development centers in Japan, the United States, Europe, and China, and sales offices, globally. SMC product lines divided by them include filter replacements, condensation prevention, heat resistance, thermos-chilling, and others. SMC provides a video library as well as product selection guide to assist customers in finding solutions and optimizing product efficiency.
HAKKO Corporation, established in 1952 and has its headquarters in Osaka, Japan, is a manufacturer and distributor of soldering equipment and solutions. It offers a wide range of products including soldering stations, desoldering tools, and soldering pots. These products are used for various thermal control needs such as in electronics manufacturing, hobbies, and crafts. The company operated globally and holds both the ISO 9001 quality management and ISO 14001 enviornmental management certifications.
Desco Industries Inc., headquartered in Chino, California, has been a manufacturer of ESD control products since 1979. Their product range include vacuum sealers, workstation monitors, ESD audit equipment and related items, specifically designed for industries where electrostatic discharge poses a risk to sensitive electronics such as in electronics, semiconductor, and telecommunications. DESCO INDUSTRIES INC. provides ESD control products to manage and control static electricity, ensuring the protection of sensitive electronic components, equipment, and systems.
Multi Measuring Instruments Co., Ltd. was founded in Chiba, Japan in 1986 and is headquartered in Tokyo. As per its namesake, Multi offers a vast array of measuring and testing equipment used across a number of industries. Some of their offerings include voltage meters, network testers, lux meters, cable locators, sound meters, various thermometers, gas analyzers, and water quality meters. Multi Measuring Instruments has a mission for its products to improve the global environment by detecting inefficiencies and leaks, developing products that will be useful for solar and wind power generation.
Ranking as of November 2024
Derivation MethodRank | Company | Click Share |
---|---|---|
1 | Trek, Inc. |
15.6%
|
2 | Morris Coupling Co. |
14.8%
|
3 | Wayne Kerr Electronics, Inc. |
11.7%
|
4 | Haug GmbH & Co. KG |
11.7%
|
5 | Desco Industries Inc. |
8.6%
|
6 | HAKKO Corporation |
8.6%
|
7 | SMC Corporation. |
8.6%
|
8 | SHISHIDO ELOCTROSTATIC, LTD. |
7.8%
|
9 | MULTI MEASURING INSTRUMENTS Co., Ltd. |
5.5%
|
10 | Dou Yee Enterprises |
4.7%
|
Derivation Method
The ranking is calculated based on the click share within the electrostatic instrument page as of November 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
Country | Number of Companies | Share (%) |
---|---|---|
Japan | 4 | 44.4% |
United States of America | 3 | 33.3% |
Singapore | 1 | 11.1% |
Germany | 1 | 11.1% |
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