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Voltage Probes
PHYSICS
• Ohm’s law
• Series and parallel circuits
• Electrical energy
• Capacitors
differential
voltage Probe
$39
range: -6.0 to +6.0 V inPut imPedance: 10 MΩ
resolution:
12-bit (labQuest, labQuest Mini, labPro, go!link, SensorDaQ): 3.1 mV
10-bit (cBl, cBl 2, nXt adapter): 12.5 mV
Logger Pro graph showing Ohm’s law using
the Current Probe, Differential Voltage
Probe, and the Vernier Circuit Board
great Ways to use tHis sensor!
PHYSICAL SCIENCE
• Battery and bulb investigations
INNOVATIVE USE
• For laboratory voltage
measurement
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the Differential Voltage Probe is designed for exploring
basic principles of electricity, including series and
parallel circuits.
• Ideal for use in most battery and bulb circuits.
• Can be used to study low-voltage AC and DC circuits.
• Combine with a Current Probe to explore Ohm’s law,
phase relationships, and much more.
this sensor differs from our Voltage Probe (see next column)
in that neither of the clips are grounded, making it possible
to use two probes in the same circuit simultaneously.
CHEMISTRY
• Establishing a table of reduction
potentials: micro-voltaic cell
• Lead storage batteries
PHYSICS
• Capacitor charging
great Ways to use tHese sensors!
MIDDLE SCHOOL
• Fruit and metal voltaic cells
voltage Probe
$12
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this Voltage Probe can be used to measure the potential
in direct-current or alternating-current circuits. in
chemistry, physical science, or middle school science classes,
the Voltage Probe can be used to measure voltages
developed in a variety of electrochemical (voltaic) cells.
range: -10 to +10 V
resolution:
12-bit (labQuest, labQuest Mini, labPro, SensorDaQ): 0.005 V (5 mV)
10-bit (cBl, cBl 2): 0.020 V (20 mV)
30-volt
voltage Probe
$49
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this sensor is used to measure voltages in the range of
-30 to +30 volts. Use this sensor in experiments that involve
voltages larger than 10 volts, such as when working with
large solar panels. Since this voltage probe covers such
a wide voltage range, its resolution is lower than our
Differential Voltage Probe, which we recommend for
most experiments.
range: -30 to +30 V
voltage Probe 30-volt voltage Probe
INNOVATIVE USES
• Measure output from large
solar panels
• Measure voltage in
do-it-yourself projects
voltage: 120 V
sensors and accessories
minimum measurable PoWer: 0.5 watts
accuracy: ±1.5%, + 3 counts of the displayed value
Watts up Pro
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Wu-Pro
watts Up Pro measures real-time energy use of common
electrical devices. find out which costs more: running
a hairdryer for 10 minutes or leaving on a lamp all
afternoon? Measures potential, current, power, and
cumulative cost.
• connects to the USB port on your computer or
labQuest—no other devices needed.
• Use at the same time as a labQuest, labQuest Mini,
labPro, or go!link to monitor electricity usage in
combination with other data, such as temperature, light,
and relative humidity.
• the lcD panel on watts Up Pro allows it to be used as a
standalone device.
the watts Up Pro carries a one-year warranty.
great Ways to use tHis sensor!
INNOVATIVE USES
• Long-term monitoring
of devices
• How can I save money?
• Investigate phantom load
• Compare energy use of
different types of light bulbs
$145
Measuring
temperature and
power consumption
in a basement
freezer
• Study energy use of
different devices
• Analyze energy use of
different wattage light bulbs
• Study energy use in charging
electric cars
go to www.vernier.com/probes for more on sensors- |- |- sensors
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