Tamagawa Seiki is a world-renowned company that specialises in producing components for automation systems in all areas of industry. The company manufactures high-precision sensors, motors, gyroscopes, and also offers customized, turnkey solutions for its customers. Today Tamagawa Seiki is one of the few manufacturing companies in the world, which designs and manufactures two-dimensional and three-dimensional (spatial) position sensors. The company applies modern high-precision sensor technologies, so Tamagawa products are used even in the space industry. Besides, the company's clients are the companies of defense industry, aviation industry, medicine, mechanical engineering, manufacture of machines and different equipment.
The company was founded in 1938 in Japan, at first it was producing engines, sensors, hydraulic equipment and other control devices. Today, Tamagawa Seiki's headquarters and main production plant are located in Nagano Prefecture, Japan. The company has more than 650 employees and a capital base of more than 100 million Japanese yen. The executives of Tamagawa Seiki are Hiroyuki Hajimoto, General Manager and Chairman of the Board, and Norifumi Hajimoto, Executive Director and President. The company guarantees that the required quality, cost and delivery times will satisfy even the most demanding customers.
Tamagawa Seiki manufactures a wide range of products: servo components (speed sensors, transducers, gyroscopes, servo drives, DC servo motors, stepper motors, torque motors, generators), controllers, automatic control devices and other products.
Rotary encoders
Angle encoders are electrical information machines designed to operate in counting and resolving systems to produce a defined output voltage range in linear relationship to the rotor angle.
Rotary transformers and resolvers
Rotary transformers are designed to produce an alternating voltage which is a function of the rotor angle α. This voltage must be proportional to sin α, cos α or the angle α itself. Depending on this, the types of rotary transformers are divided into sine, cosine, sine-cosine or linear. Resolvers: Singlsyn - proprietary brand for VR series resolvers; Smartsyn - brushless resolver based on innovative winding techniques; FA-SOLVER® - brushless resolvers/brushless synchronous resolvers. Synchro - one type of rotary electrical transformers; LVDT - linear variable differential transformers.
Control systems, intelligent sensor technology
The Smartcoder device series is an IC for real-time conversion of analogue resolver signals into digital absolute position signals and is used for angle detection in combination with Smartsyn and Singlsyn converters. Applications include robots, machine tools, vehicles and aircraft. The range of level control systems includes: Position or angle detectors, display units, high accuracy limit switches, gate detectors, signal conditioners, etc. Smartcam absolute positioning systems - contains high accuracy, high resolution brushless resolvers or transducers, which, when coupled with a variety of transducers, allow the implementation of single-turn and multi-turn systems compatible with higher level applications such as programmable controllers, sequencers, etc. SmartCoder - resolvers/digital converters; water control systems; positioning systems Ⅰ (Synchro, Encoder, SynchroCam); positioning systems Ⅱ (SmartCam).
Rotary encoders
Angle encoders are electrical information machines designed to work in counting and resolving systems to produce a defined output voltage range in linear relationship to the rotor angle.
Rotary transformers and resolvers
Rotary transformers are designed to produce an alternating voltage which is a function of the rotor angle α. This voltage must be proportional to sin α, cos α or the angle α itself. Depending on this, the types of rotary transformers are divided into sine, cosine, sine-cosine or linear. Resolvers: Singlsyn - proprietary brand for VR series resolvers; Smartsyn - brushless resolver based on innovative winding techniques; FA-SOLVER® - brushless resolvers/brushless synchronous resolvers. Synchro - a type of rotary electrical transformer; LVDT - linear variable differential transformer.
Control systems, intelligent sensor technology
Smartcoder series is an IC for real-time conversion of analogue resolver signals into digital absolute position signals, and is used for rotary angle detection in combination with Smartsyn and Singlsyn converters. Applications include robots, machine tools, vehicles and aircraft. The range of level control systems include: Position or angle detectors, display units, high accuracy limit switches, gate detectors, signal conditioners, etc. Smartcam absolute positioning systems - contains high accuracy, high resolution brushless resolvers or transducers, which, when coupled with a variety of transducers, allow the implementation of single-turn and multi-turn systems compatible with higher level applications such as programmable controllers, sequencers, etc. SmartCoder - resolvers/digital converters; water control systems; positioning systems Ⅰ (Synchro, Encoder, SynchroCam); positioning systems Ⅱ (SmartCam).
Trackballs
Generates an accurate digital signal by rotating the ball in either direction with the hand or fingers. Consisting of optical sensors, offering high reliability, fast response time, long service life
Servo motors
The manufacturer offers several series of AC servomotors with built-in high-precision resonators. The TBL-i II series is available as a compact series with flange sizes from 40 mm to 80 mm and as a large series with flanges from 100 mm to 220 mm. The motors of this series can be equipped with gearbox or brake and are used in multi-axis robots, packaging and medical equipment. The TBL-i IV series features small size and an integrated optical encoder with 23 bit resolution. For larger models, the encoder is also detachable for improved maintainability. The TBL-V range can replace stepper motors due to its compact size and equipped with the world's smallest resolver (Smartsyn) with high robustness. The TBL-i mini range features the industry's smallest AC servo motors in 14.5, 19.5, 22 mm sizes, used in semiconductor manufacturing equipment, chip assembly, etc. SV-NET servo systems implement simple and functional motion control using a controller with I/O unit as standard, and a driver. TBL-iⅡ series (AC servomotors/drives, high-speed, large size);TBL-i mini series (compact size);TBL-V series (highly reliable, compact AC servomotors);TRE series (universal DC servomotors)
Stepper motors
The rotation speed of stepper motors is dependent on the pulse frequency and angle of rotation and is determined by the number of pulses. The pulses allow the system to operate in an open control loop, i.e. it requires no feedback. On the other hand, the pitch block angle is determined by the mechanical construction of the stator and rotor. Stepper motors are also referred to as pulse motors. Two-phase stepper motors;5-phase stepper motors;stepper motors in servo systems ( i-STEP MOTOR ).
Gyroscopes
In recent years, mechanical gyroscopes and modern sensors applying their principles have made their way into industry and are used in automated vehicles, construction machines, etc. The company's range of gyroscopes is used to control movements in defence, aviation and ships. The range of devices includes inertial sensors (gyroscopes) with one, two and three axes, accelerometers and piezoelectric sensors of angular velocity. The company also manufactures complete assemblies for end-use: gyroscope modules for passenger cars and three-axis inertial measurement modules. single axis gyroscopes;piezoelectric angle sensors;two axis gyroscopes;three axis gyroscopes;accelerometers.
Other products
For aerospace and defence applications, the company manufactures high-precision angle encoders, precision motors, sensors and mechanical components for space instruments. For commercial aircraft, the company manufactures linear and rotary differential transducers, various sensors for piloting systems, flap controls, flight control actuators, servomotors and actuators, resolvers for thrust control sensors, and position sensors. The company also offers stabilised platforms with Hi-Vision digital cameras for aeronautical and maritime applications.
