Search in the site

Resolver Synchro Tamagawa

resolver Synchro

The Synchro resolver were among the first angular transducers produced ​​by Tamagawa in 1938. Extremely tough and reliable, Synchro is a type of rotary electrical transformer that is used for measuring the angle of a rotating machine.

The principles of Synchro are similar to those of an electrical transformer except that the iron core of Synchro consists of a rotor and a stator.
Output voltage of Synchro varies in accordance with a rotation angle of a shaft.

It is classified into two types: Torque Synchro and Control Synchro.

Torque Synchro

Torque Synchro is used by connecting a torque transmitter (TX or G) with a torque receiver (TR or M).

A shaft of the receiver rotates in unison with the rotation of a shaft of the transmitter. In other words, the receiver synchronizes exactly with the transmitter.

So you can detect the shaft angle of the torque transmitter by measuring the shaft angle of the torque receiver.

Control Synchro

Control Synchro detects a rotation angle by reading output voltage.

When a shaft of a control transmitter (CX) or of a brushless control transmitter (BCX) is rotated, 3-phase output voltage changes corresponding to the shaft angle. So the shaft angle can be determined by detecting the output voltage.

Structurally, Control Syncro is classified into two types : a brush type and a brushless type.

Synchro Tamagawa comply with the standards JIS, NDS, MIL-S-20708D. The range of product also includes rugged, water-proof and dust-proof versions.


JIS Equivalent Series

-20 ~ +50°C

Full Amplitude 0.5mm
Vibration Frequency 10~55Hz

(Low Shock)
The acceleration 98m/s2
20ms time duration


NDS Equivalent Series

-30 ~ +60°C

Full Amplitude 0.75mm , 0.50mm , 0.25mm
Vibration Frequency 5~15Hz , 16~25Hz , 26~33Hz

(High Shock)
NDS XF 8005 Hl 1A
(The acceleration 9800m/s2)REF
(2.3ms time duration) REF

For more details download the catalogue Synchro Tamagawa,



Ask for more information

    This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.