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750 Interface - Our Most Powerful Interface

  • Fast: 250,000 Hz
  • Built-in Function Generator
  • Built-in DC Power Supply (300 mA, ±5 V)
  • Accessory Power Amplifier Increases Power to 1 A, ±10V
  • Simple USB Connection to Computer

750 Interface, USB

CI-7650

$67900

U.S. Educator Pricing

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Since its introduction, the ScienceWorkshop 750 Interface has been globally acknowledged as the premier university-level physics interface, offering built-in function generator and DC power supply, plus a total of 7 channels. Now the 750 offers the ease of USB connection to your computer.

The 750 uses ScienceWorkshop sensors and cannot use PASPORT sensors.

Ideal for:

  • Electronics/circuits
  • Understanding instrumentation
  • Feedback & control

Seven Input Channels:

With the 750, all 7 channels may be used simultaneously. There are no limitations on what combinations of sensors can be used. Analog and digital inputs may be mixed in any combination.

  • Four Digital Channels -- Use up to 4 Photogates or 2 Rotary Motion Sensors, a photogate and Motion Sensor II, or any other combination.
  • Three Analog Channels -- Max sample rate of 250,000 Hz when using a single channel.

The 750 eliminates the need for a separate signal generator. In this LRC experiment, the 750 powers the circuit with a sinusoidal function and, using 3 voltage sensors, measures the voltages across the inductor, capacitor, and resistor simultaneously. In addition, it also records the output voltage and current. DataStudio can display all 5 traces on its oscilloscope so the phase shifts can be measured.

New Sense and Control Feature

The 750 output voltage can now be controlled using the calculator in DataStudio. For example, use the 750 output voltage to turn on a DC motor at a voltage proportional to the light intensity reading on a Light Sensor.

New calculator functions included in DataStudio are:

Outputswitch (A)


Controls the ON/OFF state of the Signal Generator window when using a ScienceWorkshop 750 interface. If the result of the sub-expression A is non-zero, then the Signal Generator is turned ON. Otherwise, the signal generator is turned OFF. The waveform, amplitude, or voltage settings of the Signal Generator are unaffected by this command.

Outputvoltage (A)


Controls the voltage (DC) or amplitude (waveform) of the Signal Generator window when using a ScienceWorkshop 750 interface. The result of the sub-expression A is used to set the output voltage or amplitude. Note: The parameter to output voltage will be limited to the range of ±5V (without a power amplifier), or ±10V (with a power amplifier).

Includes

Included Equipment
  • ScienceWorkshop 750 USB interface box
  • AC Adapter, 12 VDC, 60 Hz, 40 W
  • USB Cable
Additional Equipment Required
  • USB-compatible computer
  • Any PASCO ScienceWorkshop Sensor
  • Datastudio software, version 1.7 or later
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Special Features

  • 250,000 Hz Sampling Rate -- Sample at 250,000 samples per second on a single analog channel. Students will see a true, real-time oscilloscope and incredibly responsive sound sensor data.
  • Built-in 1.5 W Function Generator -- Any experiment requiring a frequency up to 50 KHz and 1.5 watt (300 mA) output can be run without additional power amplification. Output current and voltage can be monitored internally by the 750 Interface.
  • 20 KHz oscilloscope -- With the 750's increased sampling rate, the oscilloscope becomes a real-time scope with refresh rates up to 40 frames per second.
  • Reduced Noise and More Accurate Data -- When sampling at rates less than 100 samples per second, circuit noise can be visible on a data graph. The 750 Interface provides 8X over-sampling to reduce noise and provide smoother data curves

Unique Characteristics

  • Ports -- 4 Digital, 3 Analog, 1 Output
  • Connection -- USB
  • Data Sampling -- Simultaneous Analog and Digital Recording
  • Analog Rates -- Up to 250,000 samples/sec (20 KHz Oscilloscope)
  • Digital Rates -- 0.1 msec digital timing accuracy (1 mm resolution for Motion Sensor)
  • Function Generator -- 0-50 KHz, 1.5 W (300 mA) output
  • Power Amplifier Compatible
  • Designed for -- Advanced Placement and College Physics

750 interface and LabVIEW software used to control the Fan Accessory based on measurements from the Motion Sensor.

PASCO's 750 Interface supports LabVIEW software on a Windows PC. Visit the LabView Family Page or contact Customer Support for more information.

The 750 Interface and LabView combination supports the following capabilities:

  • One motion sensor
  • Photogate timing on all 4 channels (not available with other inputs active).
  • Analog sensor input sampling at <50 Hz on channels A, B and C

This configuration does not support output voltage measurement, output current measurement, or function generator control.

After data is collected, students can use the power and flexibility of LabVIEW software to display and condition the data as needed. This system provides the perfect opportunity for students to learn about digital and analog data processing techniques.

For laboratories equipped with National Instruments Educational Laboratory Virtual Instrumentation Suite (NI ELVIS), it is possible to use ScienceWorkshop analog and digital sensors through the NI ELVIS Analog Adapter (CI-6718) and the NI ELVIS Digital Adapter (CI-6719).

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