Sensing and Datalogging for Science Education

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Last updated 31st July 2008                    Sensors           Logbooks           PriceLists          Investigations         2008 Catalogue

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Current Sensors (5 models)

This sensor will give an accurate reading of voltage in any circuit configuration with a supply voltage of less than 20Volts.

  1. Logger compatibility :ScienceScope Type 3 (Click for details)

  2. ±10 Amps

    resolution 0.02 Amps

  3. ±1 Amps

    resolution 0.002 Amps

  4. ±100 m Amps

        resolution 0.2 milliAmps

  5. ±1 m Amps

        resolution 0.002 milliAmps

  6. -10 to + 20 m Amps

This is designed for use with a 20 mA current loop output device. To calibrate for measured units use the Datadisc Setup Menu > Calibrate subMenu

Maximum recording frequency with Datadisc is 50 microseconds

These five sensors allow all possible types of investigation to be carried out:

Voltage and current sensors can be used together anywhere in a circuit with a supply voltage of up to 24 Volts with no interference between sensors. All work from DC to 10KHz.

Derived Sensors

Power

Energy

Voltage (if circuit resistance is known)

RMS Current

Resistance  (requires a voltage sensor)

 

Typical Investigations

Current and voltage in a diode

Current and voltage in a filament bulb

Current and voltage in a LDR

Current and voltage in a resistor

Current and voltage in a thermistor

Energy consumption

Heat in a resistor

Relationship between power, voltage and current

Relationship between steady current, charge and time

Resistance in a circuit

AC current-generator

Force on a current-carrying wire in a magnetic field (Lorentz force)

 

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