PASCO Motion Sensor II CI-6742A Quick Start Manual

Greeting the SensorsWaving at the (ultra-sound) motion sensor: PASCO Motion Sensor II CI-6742AIntroduction:The Motion Sensor II works with a ScienceWorkshop-compatible interface and PASCO dataacquisition software (such as PASCO Capstone) to measure and record motion data. Itproduces a series of ultrasonic pulses and detects the sound refecting back from an object infront of it. The interface measures the times between outgoing pulses and returningechoes. From these measurements, the data acquisition software determines the position,velocity, and acceleration of the object.1Quick Start1. Connect the Motion Sensor II to your ScienceWork-shop interface and start Capstoneon the computer.2. Register the sensor with Capstone.3. Place an object in front of the sensor at least 15 cm away.4. Click “Record” or press “Start” to begin recording data.5. Move the object in a straight line directly away from or toward the sensor.To Aim the Motion Sensor at an Object1. Set the range switch to short range () or long range () setting.•Select for measuring a cart on a track.•Select for measuring most other objects.2. Arrange the Motion Sensor and object so that the Motion Sensor's transducer faces theobject.•The object should be at least 15 cm from the transducer.•If the object will move, it should move directly toward or away from the MotionSensor.•Aim the motion sensor slightly up to avoid detecting the tabletop.3. Remove objects that may interfere with the measurement. These include objectsbetween the sensor and target object, either directly in front of the sensor or to thesides.To Record Data in Capstone, click Record and the Motion Sensor will begin clicking. If a targetis in range, the target indicator fashes with each click. The data acquisition software shouldstart collecting and displaying data. Click Stop to stop data collection.To Display Data without Recording in Capstone:Click the Recording Mode menu and select Fast Monitor Mode. The Record icon changes to aMonitor icon. Click Monitor to display live data without recording it.Sensor Confguration:To Change the Sample Rate in Capstone, click the up or down button next to the Sample Ratesetting.The normal range of sampling rates is between 1 Hz and 50 Hz. At the default rate, theMotion Sensor can measure distance up to 8 m. The maximum distance decreases withincreasing sample rate. At very high sample rates (between 50 Hz and 250 Hz), the maximumdistance is less than 2 m.Equipment Mounting:• Mount the Motion Sensor as illustrated ona vertical rod (a) or a horizontal rod (b).• Integrated clips allow it to be attached to the end of a dynamics track (c).• A threaded hole in the bottom of the unit (d) is provided for attachment to the PS-2546Magnetic Bracket (e), the ME-6743 Cart Adapter (f), and other 1/4-20 threadedmounting devices such as a camera tripod.1Note: Essential PASCO Capstone tasks are described briefl in thisinstruction sheet. For more instructions on using Capstone, see the User’sGuide or the online help

/ 3

Related manuals for PASCO Motion Sensor II CI-6742A