What does servo mean?

Question 1: What does servo motor mean? "Servo"-the word comes from the Greek meaning of "slave". British servomeans want to regard "servo mechanism" as a handy taming tool and act according to the requirements of control signals. Before the signal came, the rotor was stationary; After the signal comes, the rotor rotates immediately; When the signal disappears, the rotor can automatically stop running immediately. Because of its "servo" performance, it is named-servo system. See baike.baidu/view/267111

Question 2: What does servo mean? What is a servo motor? Servo: This word comes from the Greek word "slave". People hope to regard "servo mechanism" as a convenient taming tool and take actions according to the requirements of control signals. Before the signal came, the rotor was stationary; After the signal comes, the rotor rotates immediately; When the signal disappears, the rotor can automatically stop running immediately. Named for its "servo" performance.

The main task of servo is to amplify, transform and adjust the power according to the requirements of control instructions, so that the torque, speed and position output by the driving device can be controlled flexibly and conveniently.

Servo motor is an engine that controls the operation of mechanical parts in servo system, and it is an indirect transmission device that supplements the motor. More specific related knowledge, the loyal generation of Rihong. Science, complete knowledge and good product quality.

Question 3: What does servo technology mean? Servo, servo system can be divided into electromechanical servo system, hydraulic servo system and pneumatic servo system according to the types of driving elements used. A feedback control system for accurately tracking or reproducing the process. Also known as servo system. In many cases, servo system refers to a feedback control system in which the controlled quantity (output of the system) is mechanical displacement or displacement speed and acceleration, and its function is to make the output mechanical displacement (or rotation angle) accurately track the input displacement (or rotation angle). The structure of servo system is no different from other forms of feedback control system in principle.

Servo system was originally used in ship autopilot, artillery control and command instrument, and then gradually extended to many fields, especially automatic lathe, antenna position control, missile and spacecraft guidance. Servo system is mainly used to achieve the following purposes: ① Control high-power load with low-power command signal. Gun control and rudder control are typical examples. ② Under the condition of no mechanical connection, the input shaft controls the output shaft remotely to realize long-distance synchronous transmission. (3) make the output mechanical displacement accurately track electrical signals, such as recording and indicating instruments.

The main indexes to measure the performance of servo system are bandwidth and accuracy. Bandwidth, abbreviated as bandwidth, is defined by the frequency response characteristics of the system and reflects the tracking speed of the servo system. The greater the bandwidth, the faster the speed. The bandwidth of servo system is mainly limited by the inertia of the controlled object and actuator. The greater the inertia, the narrower the bandwidth. Generally, the bandwidth of servo system is less than 15 Hz, and that of large equipment is below 1 ~ 2 Hz. Since 1970s, due to the development of torque motor and high-sensitivity velocimeter, the servo system is directly driven, which eliminates or reduces nonlinear factors such as backlash and elastic deformation, and the bandwidth reaches 50 Hz, which has been successfully applied to long-range missiles, satellites, precision commanders and other places. The accuracy of the servo system mainly depends on the accuracy of the measuring elements used. Therefore, high-precision measuring elements, such as precision potentiometer, synchro and resolver, must be used in servo system. In addition, additional measures can be taken to improve the accuracy of the system, such as connecting the measuring shaft of the measuring element (such as synchronizer) with the rotating shaft through a reducer, which can enlarge the rotation angle of the rotating shaft and thus improve the relative measurement accuracy. The servo system adopting this scheme is called precision and coarse measurement system or dual-channel system. The angle measuring circuit meshed with the rotating shaft through the reducer is called the fine reading channel, and the angle measuring circuit directly taken from the rotating shaft is called the coarse reading channel.

Question 4: What is servomechani ***

A feedback control system for accurately tracking or reproducing the process. Also known as servo system. In many cases, servo system refers to a feedback control system in which the controlled quantity (output of the system) is mechanical displacement or displacement speed and acceleration, and its function is to make the output mechanical displacement (or rotation angle) accurately track the input displacement (or rotation angle). The structure of servo system is no different from other forms of feedback control system in principle.

Servo system was originally used in ship autopilot, artillery control and command instrument, and then gradually extended to many fields, especially automatic lathe, antenna position control, missile and spacecraft guidance. Servo system is mainly used to achieve the following purposes: ① Control high-power load with low-power command signal. Gun control and rudder control are typical examples. ② Under the condition of no mechanical connection, the input shaft controls the output shaft remotely to realize long-distance synchronous transmission. (3) make the output mechanical displacement accurately track electrical signals, such as recording and indicating instruments.

The main indexes to measure the performance of servo system are bandwidth and accuracy. Bandwidth, abbreviated as bandwidth, is defined by the frequency response characteristics of the system and reflects the tracking speed of the servo system. The greater the bandwidth, the faster the speed. The bandwidth of servo system is mainly limited by the inertia of the controlled object and actuator. The greater the inertia, the narrower the bandwidth. Generally, the bandwidth of servo system is less than 15 Hz, and that of large equipment is below 1 ~ 2 Hz. Since 1970s, due to the development of torque motor and high-sensitivity velocimeter, the servo system is directly driven, which eliminates or reduces nonlinear factors such as backlash and elastic deformation, and the bandwidth reaches 50 Hz, which has been successfully applied to long-range missiles, satellites, precision commanders and other places. The accuracy of the servo system mainly depends on the accuracy of the measuring elements used. Therefore, high-precision measuring elements must be used in the servo system, such as precision potentiometer, synchro, resolver, photoelectric encoder, grating, magnetic grid, ball grid and so on. In addition, additional measures can be taken to improve the accuracy of the system, such as connecting the measuring shaft of the measuring element (such as synchronizer) with the rotating shaft through a reducer, which can enlarge the rotation angle of the rotating shaft and thus improve the relative measurement accuracy. The servo system adopting this scheme is called precision and coarse measurement system or dual-channel system. The angle measuring circuit meshed with the rotating shaft through the reducer is called the fine reading channel, and the angle measuring circuit directly taken from the rotating shaft is called the coarse reading channel.

According to the types of driving elements used, servo systems can be divided into electromechanical servo systems, hydraulic servo systems and pneumatic servo systems.

The most basic servo system includes servo actuator (motor, hydraulic cylinder, etc.). ), feedback components and servo driver, but in order to make this system work, we need an upper-level mechanism, PLC, special motion control card and industrial computer +PCI card, so as to send instructions to the servo driver.

What is a servo motor? How many types are there? What are the job characteristics?

Answer: The servo motor, also known as the executive motor, is used as the executive element in the automatic control system to convert the received electrical signal into angular displacement or angular velocity and output it on the motor shaft. Divided into DC and AC servo motors.

What is the functional difference between AC servo motor and brushless DC servo motor?

Answer: AC servo is better, because it is sine wave control and the torque ripple is small. Brushless DC servo is trapezoidal wave. But DC servo is simpler and cheaper.

Permanent magnet AC servo motor

Since 1980s, with the development of integrated circuit, power electronics technology and AC variable speed drive technology, the permanent magnet AC servo drive technology has made outstanding progress, and famous electrical manufacturers in various countries have successively introduced their own AC servo motors and servo drive series products, which are constantly improved and updated. Ac servo system has become the main development direction of contemporary high-performance servo system, which makes the original DC servo face the crisis of being eliminated. After the 1990s, all commercial AC servo systems in the world are driven by sine wave motor servo with full digital control. The development of AC servo drive device in transmission field is changing with each passing day. Compared with DC servo motor, permanent magnet AC servo motor has the following main advantages:

(1) has no brush and commutator, so it works reliably and has low maintenance requirements.

⑵ The stator winding is convenient for heat dissipation.

(3) Inertia is small, which is easy to improve the rapidity of the system.

(4) Adapt to high-speed and high-torque working conditions.

5] Smaller size and lighter weight under the same power.

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Question 5: What do you mean by servo ready and servo enabled? What is the difference? Generally speaking:

Servo enable is the input signal of the servo system, and the upper computer outputs the signal to the servo system, which makes the servo system in the enabled state. When the signal is valid, the driver controls the motor winding to be electrified, so that it can receive other control instructions. Otherwise, the motor winding is powered off and the motor is in a free state until the deviation is cleared and no other instructions are received.

Servo ready, this is the output signal of the servo system. When the driver is initialized and can run normally, it will output a signal to the upper computer.

I hope it helps.

Question 6: What is servo enable? Please explain in detail. Generally speaking, servo enabling means that the driver supplies power (excitation) to the motor by sending a signal to the driver, that is, after receiving this signal, the current loop, speed loop and position loop of the driver are determined by the control mode of the driver) to enter the working state.

Question 7: What does the automatic servo of the camera mean? Servo system servomechani *** is an automatic control system that makes the output controlled quantity such as the position, orientation and state of the object follow the arbitrary changes of the input target (or given value). In camera application, it is an automatic control system with auto-focus and other functions. For example, the autofocus servo function means that when shooting a dynamic object, after you aim at the moving object for the first time, the camera will keep focusing with the movement of the object. This can improve the clarity and photographic quality when shooting birds.

Question 8: What is a server? In English, it is called "server".

The word "server" is a term used in China, Hongkong and some American hacker movies.

The server is mainly used to process data, which has super data processing ability. Also known as "login server".

Question: What does servo ON mean? How to understand? Servo ON means that the servo is ready, enabled and ready, and can run as long as there is a driving signal (pulse or communication). At this time, the shaft of the motor is locked, that is, it cannot be rotated by hand. Servo must be enabled before operation, which is a necessary condition for servo motor operation.

Question 10: What is a server? A server is a server.