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ET342 · Measuring Motion & Speed: Position and Speed Cards

Measuring Motion & Speed: Position and Speed Cards

A comprehensive course package for the ET platform: hands-on exploration of static and dynamic motion measurement using industrial-standard sensors. This unified module features both the Position Card and the Speed Card, powered and monitored by the ET300 base system, complete with guided multimedia courseware for the study of electromechanical systems.
Experiments
  • Position Studies: Measurement of linear and angular displacement using Carbon Track, Wire Wound, and Slide Precision Potentiometers
  • Speed & Rotation Studies: Relative position tracking (Incremental Encoder), absolute angular measurement (Resolver), rotor state detection (Hall Effect), analog speed (Tachogenerator), and zero-point detection (Optical Interrupt)
  • Analysis: Comparative analysis of sensor resolution, linearity, and accuracy across different electromechanical technologies
  • Calibration: Calibration of position measurement chains and closed-loop motor control using PWM
ET342 Position and Speed experiment cards
Description
    The platform teaches the fundamentals of measuring motion, speed, and rotation through guided, hands-on experiments.
  • The Position Card carries three distinct potentiometric sensors, allowing students to safely generate controlled mechanical displacements and observe resistive changes in real time.
  • The Speed Card features an integrated DC motor coupled with five unique feedback sensors. Each sensor is dedicated to measuring a specific, non-redundant aspect of the motor's operation, from analog speed to absolute angular position.
    • Accessible measuring points on both cards expose the raw outputs of each sensor. These are acquired and displayed by the base system's virtual instruments, allowing for a direct, side-by-side comparison of different measurement technologies.
Courseware
    The interactive multimedia course combines theory with guided experiments: principles of resistive position sensing, electromagnetic induction, optical encoding, and analog vs. digital speed sensing. Student answers are evaluated automatically, and the full course-at least 8 hours of directed instruction (4 hours per card)-is available with multi-language support.
Scope of delivery
  • 1x Posn experiment card with integrated sensors
  • 1x Speed experiment card with integrated motor and 5 sensors
  • Storage case(s)
  • Multimedia course software with course browser
  • Connection cables
Specifications
    Sensors (position) Carbon Track Potentiometer, Wire Wound Potentiometer, Slide Precision Servo Potentiometer
    Sensors (speed) Incremental Encoder, Resolver, Hall Effect Sensor, Tachogenerator, Optical Interrupt Switch
    Actuators Integrated DC Motor (Speed Card)
    Measuring points Voltage outputs, Resistance, PWM Input, Hall Out, Encoder Outputs, Resolver Outputs, Tacho Voltage, Optical Switch Out
    Supply Powered via base system, safety extra-low voltage
    Measurement Via base system virtual instruments (voltmeter, ohmmeter, data logger, oscilloscope, frequency counter)
    Base system Requires ET300 (interface + experimenter) - not included

Part of package

Electrical Engineering Training System

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A modular electrical-engineering training platform built around virtual instrumentation. The ET300 base system hosts a family of course modules covering three-phase systems, multimeter measurement, network analysis, and sensor measurement technology for non-electrical quantities.

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