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This section provides an overview for tachogenerators as well as their applications and principles. Also, please take a look at the list of 22 tachogenerator manufacturers and their company rankings. Here are the top-ranked tachogenerator companies as of December, 2024: 1.Baumer, 2.A. NIDHI ENTERPRISES, 3.AAE Ltd.
Table of Contents
Engaged in research on nitride semiconductor growth using the MBE method at Waseda University Graduate School. After graduating from graduate school in 2016, he joined a non-ferrous metal manufacturer.
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A tachogenerator is a sensor that is attached to a rotating shaft and outputs a DC voltage signal in response to the rotation speed.
It is used to detect the rotational speed of a shaft and is abbreviated as TG. The "tacho" in tachogenerator is derived from the Greek word takhos, which means speed, and a device used to measure the rotational speed of an engine is called a tachometer.
A generator is a device that generates electricity. The name "tachogenerator" is derived from the fact that a tachogenerator is a device that both measures RPM and generates electricity. Tachogenerators are used in a wide range of fields because of their compact size, high reliability, and ability to measure rotation speed with high accuracy.
Tachogenerators are mainly used to detect the rotation of moving equipment.
They have long been used in tachometers and speedometers for automobiles and ships. By attaching a tachogenerator to the rotating shaft of an engine or other equipment, it is possible to calculate the speed from the rotation speed. In recent years, inexpensive and highly accurate pulse generators are often used as an alternative.
It is also used to control rotation speed in machine tools. It is also used for positioning of robot arms, etc. In general, they are used for equipment that requires high-precision rotational speed control and position control.
In addition, it may be used for general-purpose rotational speed measurement applications. It may be used to detect the moving speed of a crane or the speed of an arm drive.
A tachogenerator consists of a rotor, brushes, and stator/casing.
The rotor is a component that rotates with the rotating shaft. A coil is wound inside.
The coil is a wire wound around the core of the rotor and is used to generate a DC voltage through changes in the magnetic field. As the rotor rotates, the magnetic flux passes through the coil, inducing an induced electromotive force in the coil.
Since the positive/negative direction of the induced electromotive force is reversed depending on the direction of rotation of the shaft, the direction of rotation can be determined in addition to the rotation speed.
The commutator is a component that comes into contact with the rotor of the tachogenerator. It is used to switch the polarity of the voltage applied to the coil. It is mainly composed of carbon and other materials.
Wear may increase with prolonged use, and periodic maintenance or replacement may be required. In addition, if the brushes contact the wrong position or if the contact is deteriorated by dirt or rust, accurate rotation speed detection may not be possible.
The stator is the component that provides the magnetic field to the rotor. Permanent magnets are mainly used.
The casing protects the rotor and permanent magnet inside, and serves to protect them from external environmental influences. It is generally housed in a metal casing and supported by bearings.
The casing is made of durable, heat- and corrosion-resistant materials. Steel and stainless steel are examples. In some cases, high-precision machining techniques are required.
Connectors for input and output are often installed in the casing. This allows signals output from the tachogenerator to be taken out and supplied externally. The casing also has holes or slits for mounting, which are used for mechanical fastening or as wiring passages.
When selecting a tachogenerator, the rotational speed range and output voltage should be taken into consideration.
Tachogenerators output a signal of rotational speed within a certain range. Therefore, it is important to check the rotational speed range of the target equipment. It is necessary to select a tachogenerator to be used within that range.
The output voltage and other factors must also be selected to match the requirements of the system to be used. Generally, the output of a tachogenerator is a DC voltage, but it is possible to incorporate a circuit to convert it to AC if necessary.
*Including some distributors, etc.
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Watanabe Electric Industry Co. Ltd. are manufacturers of measurement and control instruments since 1940 in Japan. The company deals in signal converters, digital panel meters, non-contact meter relays, and electric current recorders. The signal converters are used to isolate and convert signals to prevent current ground loops, protect from external noise, signal boosting, and more. Digital panel meters also have various applications such as filter clogging monitors, weight measurement, conveyor rotation speed management, and many other uses. The equipment is known for its accuracy and stability while being in use.
Johannes Hübner is an ISO 9001:2015 and ISO 14001:2015-certified German manufacturer of drive technology and encoder systems established in 1934. Based in Giessen, Hesse, the company produces various encoders including absolute and incremental models, overspeed switches for detecting and signaling when preset parameters are exceeded, tachogenerators for controlling the speed of motors, and slip ring assemblies for coordinating signals or power between moving and stationary parts. Johannes Hübner also provides custom design, engineering and installation, as well as commissioning and repair services to their clients.
Citizen Chiba Precision was established in Chiba, Japan in 1979. Citizen is a leader of miniaturized precision motors and customized products which custom-made to meet specific customer requirements for among others, semiconductor manufacturing equipment, medical equipment, and laser application products. Examples of Citizen’s products include optical scanners, linear actuators, servomotors, gear heads, and control drivers.
Nidec Corporation was founded in Kyoto, Japan in 1973 and is a conglomerate with over 200 subsidiaries. Primary products are hard-disk drive motors and automotive parts, and specializes motors ranging from miniature to gigantic. Nidec’s products are used in robotics, automotive, home appliances, agriculturel equipments well as molding, cutting, and machining equipment and sensors.
Excella Electronics, established in 1966 and headquartered in Maharashtra, India, is a manufacturer of motion control devices, industrial electronic instruments, and automation products. The company's products include static eliminators, DC tacho generators, PMDC geared motors, catering plastic, cement, and defense industries. Its static eliminators remove static electricity, ensuring product quality in packaging and plastic manufacturing and its DC tachogenerators provide precise speed control in machinery used in pharmaceutical production lines. The company's PMDC motors and geared motors power equipment in steel and cement industries while its overload rope sensors enhance safety in elevator systems.
MTC Industries and Research Carmiel Ltd. is an AS9100D, ISO 9001:2015 and MIL-STD certified manufacturer of subsystems for the defense and aerospace industries established in 1977 in Karmiel, Israel. The company’s product lineup includes servo motors for converting electrical energy into mechanical energy, and servo actuators for providing controlled force and motion in platforms such as UAVs or gliding bombs. It also offers inertial sensors, gyroscopes, and slip rings for transmitting power and signals. The company’s products are mainly used by clients in the aerospace and defense sectors, such as Elbit Systems and Israel Aerospace Industries.
Baumer Electric AG was founded in 1952 and is headquartered in the city of Frauenfeld, Switzerland. The ISO 9001 and ISO 14001 certified company provides sensor solutions for digitalization, packaging, railway, food and beverage, and pharmaceutical industries. A sample of the company’s sensor product listings includes object detection, distance measurement, force sensors, accessories, and connectivity devices. The company offers product support for setup and installation, product functionality, and optimized product usage.
Connect2India, established in 2015 and headquartered in Faridabad, India, is a manufacturer that developed an integrated trading platform of the same name. Launched as a full platform in 2016, Connect2India facilitates connections between Indian micro, small, and medium enterprises (MSMEs) and overseas individuals and enterprises to foster partnerships. The company also provides assistance to these businesses in entering international markets through insights, expert resources, predictive analytics, and business tools. Additionally, Connect2India offers services such as helping with business setup in India, conducting inspections of Indian companies, and hiring import and export agents. To counter international trade frauds, Connect2India leverages technologies like Blockchain.
Mavilor Motors S.A., established in 1979 and headquartered in Barcelona, Spain, is a manufacturer and supplier specializing in the production of servomotors. The company's product portfolio includes AC servo motors, DC servo motors, brakes, tachogenerators, and power generators. These products are utilized in various sectors, including electronics, renewable energy, medical devices, aerospace and defense, and entertainment and amusement. The company holds both ISO 9001:2015 and ISO 14001:2015 certificates and has global distributors in France, Germany, the United States, Mexico, and other countries.
MMC Electric Company Pvt. Ltd., founded in 1992, based in Belgaum, Karnataka, India, is a manufacturer and supplier of PMDC motors, geared motors, battery operated motors, AC synchronous motors, and DC drives. The company offers various products such as industrial grade PMDC motors, micro series geared motors, worm geared motors, planetary gear heads, and inline geared motors. It offers one of the broadest and accessible range of motors solutions in the business. The products include PMDC motors, FHP AC motors, AC Induction motors, Ac synchronous motors, Geared motors and drives. Its experienced staff and cost-effective manufacturing process maximize efficiency.
NORIS Group GmbH, established in 1925 and based in Nuremberg, Germany, is a manufacturer and supplier of industrial sensor devices and solutions. Its product portfolio includes sensors, indicators, devices for signal processing, automation systems and components, and other industrial solutions. They are used in multiple industries such as automotive, shipbuilding, mega yachts, transport, machinery and meteorology. The company also offers customized solutions, certified products, quality assurance, customer services, and technical support.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Baumer |
17.3%
|
| 2 | A. NIDHI ENTERPRISES |
6.8%
|
| 3 | AAE Ltd |
6.2%
|
| 4 | Johannes Hübner Fabrik elektrischer Maschinen GmbH |
6.2%
|
| 5 | Encoders UK Ltd |
5.6%
|
| 6 | Watanabe Electric Industry Co. Ltd. |
5.6%
|
| 7 | Rsb Tech Solution |
4.9%
|
| 8 | Encoders India |
4.9%
|
| 9 | MMC Electric Company Pvt. Ltd. |
4.3%
|
| 10 | Connect2India |
4.3%
|
Derivation Method
The ranking is calculated based on the click share within the tachogenerator page as of December 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.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
India
|
7 | 41.2% |
|
Japan
|
3 | 17.6% |
Italy
|
3 | 17.6% |
|
Germany
|
1 | 5.9% |
|
Spain
|
1 | 5.9% |
Canada
|
1 | 5.9% |
United Kingdom
|
1 | 5.9% |
Japan INSDAC Co., Ltd.
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200W Provides continuous voltage proportional to machine rotation speed
Japan INSDAC Co., Ltd.
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Provides a continuous DC voltage proportional to the motor's rotational speed.
Sanetech Co., Ltd.
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Last viewed: 1 day ago
■Features ・Constant output from standstill to high speed ・Small and lightweight ・Built-in amplifier ・Single power supply ・IP65 compatible ・Di...
Sanetech Co., Ltd.
100+ people viewing
Last viewed: 1 day ago
■Features ・Electromagnetic power generation method ・No power supply required ・IP65 compatible ・Analog output method ■Main uses ・Measurement o...
