Function/Arbitrary Waveform Generator's module B-131 (B-332).



Function/arbitrary waveform generator B–131 (B–332) intended for generation of sine wave signals, rectangular, triangular and arbitrary form in wide amplitude and frequent ranges. The signals can be created in the computer memory using the set of standard waveform templates or by the analytic and graphic input, import from the other programs, and by any combination of these methods. Than software transmits the data to hardware for further digital-to-analog transforming, filtering, and amplification. In addition the generator provides function of digital precision 4 channel voltmeter.

Choise set production: Measuring unit of UNIPRO station, model B-131 In the form of separate block with built-in power supply, model B-332

Professional measuring station UNIPRO is registered in State Registry of tools of measurement of Belarus (certificate 1239) and Russian Federation (certificate 11088)

Basic characteristic

Amplitude specifications
  • Number of output channels - 2
  • Output impedance - 50 Ohm
  • Channel output ranges:
    • Range 1: ±2 V on high-resistance load, ±1 V on 50 Ohms load
    • Range 2: ±8 V on high-resistance load, ±4 V on 50 Ohms load
  • DAC resolution: 14 bit
  • Voltage resolution:
    • range ±2 V - 0.25 mV
    • range ±8 V - 1 mV
  • DC voltage basic accuracy :U ± (0.001 + 0.0005*Un), (Volts)
    (Un— nominal value of an output voltage, Volts)
  • AC voltage basic relative accuracy for sine wave in (0.15 V – 4 V) voltage range on the 50 Ohms load
    • 0,1 Hz - 1 MHz - ± 1.0 %;
    • 1 MHz - 10 MHz - ± 2.5 %
  • AC voltage basic relative accuracy for rectangular and triangular form in (0.1 V – 4 V) voltage range on the 50 Ohms load - ±2%
  • Internal 4-channel ADC resolution - 16 bit.
    • input signal voltage range, ±9 V
    • voltage measuring basic inaccuracy:
      DC ± (0.0005 + 0.0005 Un), (Volts);
      AC ± (0.0005 + 0.0015 Un), (Volts);
      U - nominal value of measured voltage, Volts.
    • Range of frequencies 20 Hz … 50 kHz
Time and frequency specifications
  • Sampling rate : 0,25 Hz … 100 MHz
  • Minimum rise / fall time for rectangular form:
    • for pulse 2 V (range 1) - 6 ns,
    • for pulse 6 V (range 2) - 9 ns,
  • 4 built - in analog filters
  • Frequency ranges:
    • Sine and Triangle waves 0.1 Hz – 10 MHz,
    • Rectangular waves 0.1 Hz – 50 MHz,
  • Minimal frequency step tuning 0.1 Hz
  • Sampling rate: 0.25 Hz – 100 MHz.
  • Frequency setup basic relative inaccuracy : ± 0,002 %.
  • Frequency sweep mode for standard and arbitrary user signals with any deviation (including zero) in 0,1 Hz – 10 MHz frequency range.
  • Generator provides the following modulation types:
  • AM:
    • carrier frequency range 10 Hz – 10 MHz
    • modulating frequency range 0,1 Hz – 1 MHz
    • modulation factor 0 – 100 %
    • modulation factor step less than 1 %
  • FM
    • carrier frequency range 10 Hz – 10 MHz
    • frequency deviation 0,1 Hz – 6,25 MHz
    • modulating frequency range 0,1 Hz – 1 MHz
  • Pulsing - packet modulation through TTL trigger input.
  • Signal memory size: up to 128 kSamples per channel
Trigger
  • Trigger modes:
    • internal – user or program start – transient (one shot) or repetitive (while not stopped)
    • external– from rise/fall edge of external pulse with TTL-compatible levels – transient (one shot per pulse) or repetitive (while not stopped by user or program)
  • Output trigger pulse (positive, TTL)
  • External trigger jitter: 10 ns.
Other
  • PC interfaces:
    • printer port, ECP/EPP protocols
    • serial bus RS-232
    • universal bus USB
  • Power supply - 220 V/ 50 Hz
  • Consumption - 12 W
  • Size:
    • measuring unit B-131 - 190x200x20 mm
    • B-131 generator - 2,63 kg
    • Plastic case for model B-332 - 200x300x60 mm
  • Weight:
    • measuring unit B-131 - 0,33 kg
    • B-131 generator - 2,63 kg
    • B-332 generator - 1,6 kg
  • Model B-131 consists of case UNIPRO, interface module B-101/B-112 and generator unit
  • Model B-332 consists of plastic case, interface module B-112 and generator unit
Basic program-functional caracteristics of B-131
  • The software is implemented for operating systems Windows 95/98/NT/2k/XP
  • Automatic calibration and amplitude trimming depending on load
  • External calibration from built - in ADC
  • Additional functions: 4 channel digital voltmeter
  • Generator provides two types of generation:
    • Transient mode — one shot generation
    • Repetitive mode — cyclic generation
  • The standard waveforms are:
    • DC
    • Sine
    • Triangle (including Ramp)
    • Square
    • Exponent
    • sin(x)/x form
    • Noise
  • It’s possible for these signals to change its basic parameters “on the fly” (amplitude, offset, frequency, etc).
  • Generator software provides signal creation in the following ways:
    • by choosing from the set of standard signals and specifying its basic parameters
    • by entering analytic expression with using functions library
    • by graphic input, for example, mouse drawing
    • by import from text (ASCII) files, which have information about stored signals, including those that were measured with digital oscilloscope or were described in the other software
    • by any combination of ways described above

  • The convenient, intelligently sated user interface
  • Cloning on the screen of a real generated signal in view of a resistance of the on-line load, sampling rate, presence of filters
  • Possibility of cursory measurements of an imitated signal
  • File functions provide creation, opening, saving, copying and printing of datas, comments.
Software B-131
  • The software for function/arbitrary waveform generator Agent 1.9
  • Agent 2.0 driver for a Windows 95/98/NT/2k/XP
  • Documentation and the library on Agent 1.9 driver
  • Examples of driver usage for MS Visual C ++, Delphi 4.0

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