This gearing may drive a visual indicator showing the value or quantity being transmitted. 12. 10. 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. C. Only No. 1. Torque Synchro is used by connecting a torque transmitter (TX or G) with a torque receiver (TR or M). The two major parts of Synchro Transmitters are stator and rotor.The stators identical to the stator of three phase alternator. Transmitter - receiver. Inside the transmitter, the motion of a pressure bellows can be geared to the transmitter rotor in such a way as to make the rotor turn. 11. 2 is true. 8. 2. Both No. 1 is true. The rotor of the receiver synchronizes itself electrically with the position of the rotor of the transmitter and thus responds to the quantity being transmitted. The primary coil is wound on the rotor and couples magnetically to the secondary coils on the stator and the connections to the external terminals are through slip rings. Output voltage of Synchro varies in accordance with a rotation angle of a shaft. The single rotor winding of a torque transmitter or receiver is brough out by brushed slip rings. Name the two common types of synchro rotors, giving an application of each. However, a synchro receiver has inertial damping built in. A synchro torque transmitter may be substituted for a torque receiver. The SYNCHRO TRANSMITTER (TX) converts a mechanical input, which is the angular position of the rotor, into an electrical output signal. Synchro transmitters and receivers are electrically identical. The output is taken from the stator windings and is used by a TDX, a TDR, or a TR to move light loads, such as dials and pointers. SYSTEM FEATURES The unit consists of the following components and subsystems. ☞Rotor Voltage – 35VAC. SYNCHRO TRANSMITTER. B. (Figure below) Synchros function as rotary transformers. Small instrumentation selsyns, also known as sychros, use single phase paralleled, AC energized rotors, retaining the 3-phase paralleled stators, which are not externally energized. Draw the five standard schematic symbols for synchros and identify all connections. A DC selsyn system is a widely used electrical method of indicating a remote mechanical movement or position. SYNCHRO TRANSMITTER / RECEIVER [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]. Regarding the above statements, A. Remote position sensing is the main synchro application. 2. 1 and No. To study the characteristics of a Synchro Transmitter Receiver pair and use these as torque-synchro and angular enor detector. When a 115-volt ac excitation voltage is applied to the rotor of a synchro transmitter, such as the one shown in figure 1-13, the resultant current produces an ac magnetic field around the rotor winding. A synchro type indicating system is an electrical system used for transmitting information from one point to another. The rotor of a synchro transmitter is usually geared to a manual or mechanical input. The constructional features, electrical circuit and a schematic symbol of Synchro Transmitter are shown in figure-2. Only No. a) A synchro transmitter (T) with its rotor and stator terminals taken out on the panel for basic characteristics study. Describe the general construction and physical appearance of synchro rotors and stators. 9. Interpret all synchro markings and identify the particular codes used. 2 are true. Principle operation of synchro. 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