The voltage applied to the rotor induces the magnetizing current and an alternating flux along its axis. If the rotors of both the torque transmitter (TX) and torque receiver(RX) are at the same angle, the phases of the induced stator voltages will be identical for both, and no current will flow.
Now the rotor of the control  from its null position.The net angular separation of the two rotors is equal to (90-        The error voltage is amplified and used to drive a servo motor.The motor drives the shaft of the        From the above equation we can say that the output voltage of the  (which is same as supply frequency of the transmitter rotor). When the rotor rotates by an angle, EMFs are induced in stator coils. Being a multi-protocol panel, enabling choice to our customers, Syncro AS supports Apollo, Argus Vega and Hochiki detection, making it ideal for small and medium sites that require advanced fire sensing and evacuation options. The stator winding is the concentric type with the axis of three coils 120° apart. Synchros are often used for measuring the angle of a rotating machine such as an antenna platform. There are two electromagnetic transducers or electromechanical devices which result in an output that is dependent on the angular position of the rotor. 2.For automatic correction of changes due to the disturbance in the angular position of the load. Their systems consist two units. The voltage is induced in the stator winding.The variation in the stator terminal axis concerning the rotor is shown in the figure below.When the rotor angle becomes zero, the maximum current is produced in the stator windings SThe current of the same and magnitude flow through the transmitter and control transformer of the synchros.
The AC voltage is applied to the rotor with the help of slip rings.

Definition: The Synchro is a type of transducer which transforms the angular position of the shaft into an electric signal. Overview It combines compact and practical styling with the programming power and connectivity normally associated with much larger systems. The magnitude of the modulated carrier wave is proportional to  and the phase reversals of the modulated wave depend on the sign of .The signal conditioning circuit demodulates the voltage available across slip rings and develops a demodulated and amplified error voltage to drive the motor.On taking Laplace transform of equation above we get,A website for electrical engineering education on Machines,Circuits,Power Systems,Measurements,Control Systems,Power Electronics.All Rights Reserved by Electrical Engineering Info.

The constructional feature of the synchros is shown in the figure below.Consider the voltage is applied to the rotor of the transmitter as shown in the figure above. Should one rotor be displaced from the other, the stator phase voltages will differ between tra… The gear of the servo motor rotates the rotor of the control transformerThe figure above shows the output of the synchro error detector which is a modulated signal.

A single-phase ac excitation voltage is applied to the rotor through slip rings. The stator winding is star connected ( Y-connection). It is made of laminated silicon steel and slotted on the inner periphery to accommodate a balanced three-phase winding. The improvement in performance of synchronous detectors requires the use of additional components and sophistication and in turn this increases the cost. The term synchro is a generic name for a family of inductive devices which works on the principle of a rotating         A synchro system is formed by the interconnection of the devices called the 1. They areThe synchro always works with these two parts. The input to the         It is possible to identify the angular position of the rotor [A device called synchro/digital converter is available to measure the stator voltages and to calculate the angular measure and then display the direction and angle of rotation of the rotor]. Synchro is a term that is the generic name for inductive devices family which operates on the principle of rotation of a transformer which is also referred to as induction motor. In its general physical construction, it is much like an electric motor. This type of synchros has small output torque, and hence they are used for running the very light load like a pointer. The voltage is induced in the stator winding because of the mutual induction between the rotor and stator flux. Initially, the shafts of transmitter and control         When the transmitter rotor is excited, the rotor flux is set-up and emfs are induced in stator coils, These induced EMFs are impressed on the stator coils of control         Let the rotor of the transmitter rotate through an angle  from its electrical zero position. The modulating wave above shown the misalignment between the rotor position and the carrier wave.The output of the transmitter is given to stator winding of the control transformer which is shown in the above figure. The voltage equation shown above is equal to the shaft position of the rotors of control transformer and transmitter.The error signal is applied to the differential amplifier which gives input to the servo motor. A synchro system is formed by the interconnection of the devices called the synchro transmitter and the synchro control transformer. They are also called Synchro pair.


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