Mechatronics & Robotics English covers the words of automation — actuators, servo control, kinematics, PLCs, robot arms and intelligent machines. This free glossary lists the 60 most frequently used of the 405 Mechatronics & Robotics terms in the Engineering English iOS app — each with IPA pronunciation and a working definition. In the app, every term also includes example sentences, translations in 21 languages, flashcards and AI conversation practice.
Robot programming environments, PLC software and automation standards use English terminology almost exclusively. Engineers who integrate robots and automated cells depend on these exact words for commissioning, troubleshooting and vendor support calls.
Last updated: July 30, 2026 · How terms are selected and ranked · 🇹🇷 Türkçesi
Quick answer: The 10 most frequently used Mechatronics & Robotics terms in English are Robot, Control System, Closed-Loop Control, Brushless DC Motor, Servo Drive, Gearbox, PID Controller, Pulse Width Modulation, Current Loop, Kalman Filter. The full Engineering English library contains 405 Mechatronics & Robotics terms with pronunciation, example sentences, translations and flashcards.
A programmable machine capable of sensing its environment and carrying out physical tasks automatically under computer control. It combines mechanical structure, actuators, sensors, and software to replace or assist human labour.
An arrangement of interconnected components that manages, commands, or regulates the behaviour of another device or process to achieve a desired output. It combines sensors, controllers, and actuators to keep process variables at prescribed values.
A control strategy in which the measured output is fed back and compared with the reference, and the resulting error drives the controller. This feedback lets the system reject disturbances and tolerate imperfect knowledge of the process.
A brushless DC motor is an electric motor that uses electronic commutation instead of mechanical brushes to control the rotation of the rotor. It offers higher efficiency, reliability, and torque-to-weight ratio compared to brushed motors.
A servo drive is an electronic amplifier used to power servomotors by receiving control signals and providing current and voltage. It closes the control loop for position, velocity, and torque.
A mechanical device that changes the speed, torque, and direction of rotation between a driving source and a load using a set of gears enclosed in a housing.
A control loop feedback mechanism that continuously calculates an error value as the difference between a desired setpoint and a measured process variable, and applies proportional, integral, and derivative corrections.
A method of controlling the average power delivered to an electrical load by rapidly switching the supply on and off, varying the duty cycle. It is widely used in motor drives and servo systems to regulate speed and torque.
An inner feedback control loop that regulates the motor current (torque) by comparing the actual current to a reference command. It forms the fastest control layer in cascaded motion control systems.
A recursive mathematical algorithm that estimates the state of a dynamic system from a series of noisy measurements by minimizing the mean of the squared error. It is widely used for sensor fusion and state estimation in autonomous systems.
The exchange of information and actions between a human and a robotic system, encompassing commands, feedback, and collaborative tasks.
The capability of a mobile robot to plan and execute movement through an environment without continuous human intervention, using sensors and algorithms.
A setpoint is the desired target value for a controlled variable in a feedback control system. It serves as the reference against which the actual process variable is compared.
The error signal is the difference between the setpoint (desired value) and the actual measured value of the controlled variable. It drives the controller action to reduce the deviation.
A control loop is the fundamental structure of a feedback control system consisting of a process, sensor, controller, and actuator. It continuously measures the output and adjusts the input to maintain the desired setpoint.
The product of all gains around a feedback loop, typically the magnitude of the open-loop transfer function evaluated at a given frequency. It determines system stability and the amount of overshoot and settling time.
RANSAC (Random Sample Consensus) is an iterative algorithm used to estimate model parameters from a set of observed data containing outliers. It is essential for robust feature matching and camera pose estimation in machine vision.
A programmable logic controller is an industrial digital computer designed for the control of manufacturing processes or machinery. It uses a programmable memory to store instructions and implement logic functions.
A rung is a horizontal line in a ladder logic diagram that contains a set of instructions and conditions. It evaluates from left to right and is executed sequentially in a program scan.
A contact is a ladder logic element that represents a physical input or internal condition. It can be normally open (NO) or normally closed (NC) and passes logic state when its associated condition is true.
A coil in PLC ladder logic represents an output instruction that energizes when the rung conditions are true. It corresponds to physical outputs like relays, solenoids, or internal memory bits.
Denavit-Hartenberg parameters are a set of four parameters that systematically define the geometry of robot links and joints for kinematic modeling. They are used to construct the transformation matrix between consecutive coordinate frames.
Inverse dynamics computes the joint torques required to produce a desired trajectory of a robot manipulator. It is essential for model-based control and feedforward compensation.
Joint torque is the rotational force applied at a robotic joint by its actuator. It is a fundamental parameter in manipulator design and control.
The Tool Center Point (TCP) is the precise coordinate on a robot end effector, such as the tip of a welding torch, that the robot controller references for position and orientation. It defines the effective point of operation for tool interaction with the workpiece.
A graph traversal and path search algorithm used to find the shortest path from a start node to a goal node, employing heuristics to improve efficiency. It is widely applied in robot path planning for optimal route generation.
A control paradigm where the system must respond to inputs or events within a guaranteed time constraint, typically microseconds to milliseconds. It is essential for closed-loop robot motion and sensor feedback.
The computer hardware and software that manages a robot's movements, receives inputs from sensors, executes programmed tasks, and communicates with other equipment. It is the central unit for robot operation.
Resolution is the smallest change in a measured quantity that a sensor or encoder can detect. It determines the granularity of the measurement system.
The articulated mechanical structure of links and joints that positions a tool in space. It transmits actuator motion through the linkage to move the mounting flange along programmed paths.
The ratio of the Laplace transform of a linear time-invariant system's output to that of its input, assuming zero initial conditions. It compactly describes how the system reshapes signals in terms of poles and zeros.
A sensing device that converts mechanical motion of a shaft or slide into electrical signals representing position, direction, or speed. Its output allows a controller to know exactly where a moving element is.
A machine or installation that senses its environment, makes decisions, and carries out tasks without continuous human control. It combines sensors, computing, and actuators inside a closed feedback loop.
A manually operated function that immediately halts all hazardous machine movement when a person recognises a dangerous situation. It stays latched until it is deliberately reset.
A harmonic drive is a precision gear mechanism that uses a flexible spline and wave generator to achieve high reduction ratios with zero backlash. It provides compact, high-torque transmission for robotic joints.
A ball screw is a mechanical linear actuator that converts rotary motion into linear motion with low friction using recirculating ball bearings between the screw shaft and nut. It provides high precision and efficiency.
A pneumatic cylinder is a mechanical device that uses compressed air to produce linear motion and force. It converts the energy of compressed air into mechanical work.
A hydraulic cylinder is a mechanical actuator that converts hydraulic fluid pressure into linear force and motion. It is commonly used in heavy-load applications requiring high force density.
A variable frequency drive (VFD) is a device that controls the speed and torque of an AC motor by varying the frequency and voltage supplied to the motor. It enables energy-efficient motor control in industrial applications.
A transducer that varies its output voltage in response to changes in magnetic field. It is commonly used in brushless DC motors for rotor position sensing and commutation timing.
The voltage generated by an electric motor's rotation that opposes the applied supply voltage, proportional to rotor speed. It is a critical parameter in motor drive control and closed-loop velocity regulation.
An electronic circuit that amplifies and conditions control signals to drive the gate of a power transistor such as MOSFET or IGBT. It ensures fast, reliable switching and protects the power stage in motor drives.
A motion controller is a device that generates command signals to control the position, velocity, or torque of an actuator. It interprets input from a higher-level system and outputs signals to a drive.
Microstepping is a technique by which the current in the stator windings of a stepper motor is modulated to create smaller steps than the full step angle. This results in smoother motion and higher resolution.
A device that converts electrical energy directly into linear or rotary motion using the piezoelectric effect. It offers sub-nanometer positioning resolution and high-frequency response for precision motion control.
An AC electric motor where the rotor current and torque are produced by electromagnetic induction from the stator's rotating magnetic field. It is the most common motor for industrial drives due to its ruggedness, low cost, and maintenance-free operation.
A linear guide is a mechanical bearing system that provides low-friction, precise linear motion along a rail. It supports and constrains a moving carriage using recirculating ball bearings or rollers.
Obstacle avoidance is the process of planning and executing a path that prevents a robot from colliding with objects in its environment. It relies on sensor data and real-time algorithms to dynamically adjust the robot's trajectory.
State estimation is the process of inferring the internal state of a robot or system from noisy sensor measurements. It uses filters like the Kalman filter to combine predictions with observations for accurate real-time estimates.
Risk assessment is the systematic evaluation of potential hazards and associated risks in a robotic system, considering severity and probability of harm. It is required by safety standards like ISO 10218 and ISO/TS 15066 to ensure safe human-robot collaboration.
The use of data from motion sensors, such as wheel encoders, to estimate changes in a robot's position over time. It is a primary component of dead reckoning for wheeled mobile robots.
Path following is the control strategy where a robot or vehicle moves along a predetermined geometric path without any time constraints. It prioritizes spatial accuracy over temporal tracking, allowing the system to correct deviations smoothly.
Human detection is the ability of a robotic system to identify and locate people within its environment using sensors such as cameras, LiDAR, or radar. It is a critical function for ensuring safe human-robot interaction and collision avoidance.
Safe torque off (STO) is a safety function that immediately removes power from the motor drive, preventing the generation of torque and stopping the motor safely. It complies with international safety standards such as IEC 61800-5-2 and ISO 13849.
A safety PLC is a programmable logic controller specifically designed to execute safety-related control functions in industrial automation. It meets strict integrity levels (SIL 3/4, PL e) and is used in applications like emergency stops, light curtains, and robot cell monitoring.
An algorithm that incrementally builds a space-filling tree by randomly sampling the configuration space and connecting new nodes to the nearest existing node. It is widely used for motion planning in high-dimensional spaces.
An automated guided vehicle is a mobile robot that follows predefined paths or markers to transport materials without a human operator. It is widely used in industrial warehouses and manufacturing facilities for logistics automation.
A control paradigm where a human operator and an autonomous system jointly influence robot actions, often through blending of commands.
A wheeled robot locomotion system using two independently driven wheels on a common axis to control movement and steering via speed difference.
A behavior tree is a hierarchical state machine used to model and control the decision-making process of autonomous agents. It structures tasks as sequences, selectors, and conditions.
The 10 most frequently used Mechatronics & Robotics terms in the Engineering English library are Robot, Control System, Closed-Loop Control, Brushless DC Motor, Servo Drive, Gearbox, PID Controller, Pulse Width Modulation, Current Loop, Kalman Filter. This page lists the top 60 of 405 terms, ranked by usage frequency.
405. Each one includes an IPA pronunciation, a plain-English definition, a real example sentence and translations in 21 languages; the 60 most frequent are free to browse on this page.
Every term on this page shows its IPA transcription — for example Robot is pronounced /ˈroʊbɑːt/, Control System is /kənˈtroʊl ˈsɪstəm/ and Closed-Loop Control is /kloʊzd luːp kənˈtroʊl/. The Engineering English app also plays audio for each term and checks your pronunciation with speech recognition.
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