Phys 1 Student Workbook.pdf

Physics Labs with Computers, Vol. 1Student WorkbookTutorial Activities: Magnetic Field Sensor 012-07000AMagnetic Field SensorThe Magnetic Field Sensor measures magnetic field strength. The sensor has two Hall Effecttransducers arranged at right angles to one another in the tip of the probe. One Hall Effect deviceis sensitive to magnetic field lines that are parallel to the probe (axial field lines). The other issensitive to magnetic field lines that are perpendicular to the probe (radial field lines).The sensor includes a cable forconnecting to the interface.The sensor has three built-in controls.Radial/Axial Select switch: Usethis switch to select whether thesensor will measure the field linesthat are perpendicular (radial) or thatare parallel (axial) to the probe.Tare Button: Use this button tozero the sensor.(Note: Use the Zero Gauss Chamber– an optional extra – when you zerothe sensor before measuring veryweak magnetic fields.)Range Select switch: Use this switch to select one of the three input ranges for the sensor. Theranges are as follows:RADIAL/AXIALTARE1X10X100XRANGESELECTMAGNETIC FIELDSENSORCI-6520A500 scientificPASCOInterfacescientific300PASCOANALOG CHANNELSScienceW orkshop DATA LOGGING INSTRUCTIONSScienceWorkshopInterfaceGain Range Resolution Accuracy1X ±1000 gauss 0.5 gauss 100 gauss10X ±100 gauss 0.05 gauss 10 gauss100X ±10 gauss 0.005 gauss 1 gaussFor this activity you will need a bar magnet.Set up the sensor with the interface• Plug one end of the DIN-to-DIN cable into the sensor and then connect the other end of thecable into Analog Channel A on the interface.• Note: You can connect the sensor directly into the interface if needed.Set up the sensor in the software• In DataStudio, double-click the name ofthe sensor in the Sensors list in theExperiment Setup window. Result: Thesensor icon appears below Channel A ofthe interface. The sensor’s parametersappear in the Data list.Find the nameof the sensor.A - 28©1999 PASCO scientific