Human Arm Model - PS-2611



The Human Arm Model simulates the muscles and motion of an actual human arm. To activate the arm motion, students pull on the cord with a Force Sensor. Changes in position are measured at the shoulder and elbow using the two built-in potentiometers plugged into one Angle Sensor (PS-2139), included with PS-2611. From this information, the torque applied when lifting an object can be determined. Also, students can evaluate the work done by the arm in throwing a ball and the resulting kinetic energy delivered to the ball.

The Arm can perform many types of motion such as extending and lifting an object, curling, or throwing a ball overhand. Different arm muscles are activated depending on which pulleys are selected. Static force measurements can also be made to see how the muscle tension changes at various arm positions.

Key Features

  • Working Model of the Human Arm
  • Associate Triceps/Biceps Muscle Action with Arm Motion
  • Measure Torque Resulting from Lifting Weights
  • Actually Throws a Ball


  • PASPORT Angle Sensor (PS-2139)
  • Arm
  • Removable Mass
  • Cord and Cord Locks
  • Mounting Bracket with Rod
  • Force Sensor Mounting Rod
  • Rubber Ball
  • Buying Guide

    Large Table Clamp
    PASPORT Force Sensor
    Large Table Clamp   ME-9472
    PASPORT Force Sensor (2 required)   PS-2104

    Interface Required

    To use this product you need a PASCO interface. 

    New to probeware or have questions about  sensors or interfaces? Contact Teacher and Technical Support.  We're here to help!

    Software Required

    This product requires or recommends PASCO software for data collection and analysis. Either SPARKvue software or PASCO Capstone software may be used.