NF Multifunction Signal Source WF1973/1974 Japan Circuit Design

Model：WF1973/1974 Country of Origin：Japan

Category：Signal generator

Overview：

High precision is the lifeblood of a signal generator. The WF1973/WF1974 deliver outstanding specifications, providing highly stable, highly reliable, and highly accurate signals for a wide variety of applications, including excellent frequency accuracy and amplitude accuracy, fine setting resolution, and more.

Features

Specifications

Application Notes

Functions & Configuration

The user interface directly displays the set waveform, making it easy to draw arbitrary waveforms and create various signals. A general-purpose signal source that engineers will need in the future.


	WF1973

WF1974


0.01μHz∼30MHz	Built-in standard waveforms, arbitrary waveforms, and "parameter-variable waveforms" (25 waveform types)

Using the "sequence function", output waveform patterns can be freely programmed	Continuous, burst/trigger/gate, internal modulation · external modulation, sweep, sequence oscillation

2-channel independent, 2-phase, fixed frequency difference, fixed frequency ratio, differential output	Can be used as a pulse signal generator External 10MHz frequency reference input External addition input Setup memory Multiple units can operate synchronously User-defined units ...etc.

Setup items, waveforms, and display on the same screen Slim, lightweight design (88mm high, 2.1kg) Each channel is isolated from the chassis USB/GPIB interfaces AC90V~250V input...etc.

	0.01µHz∼30MHz

	Superior technical specifications enable high-quality waveform generation.
High precision is the lifeblood of a signal generator. The WF1973/WF1974 deliver high technical specifications, providing highly stable, highly reliable, and high-precision signals for a wide range of applications, including excellent frequency accuracy and amplitude accuracy, and fine setting resolution.

Frequency accuracy:	±(3 ppm of setting + 2 pHz) (external 10 MHz frequency reference usable)
Frequency resolution:	0.01 µHz
Amplitude accuracy:	±(1% of amplitude setting [Vp-p] + 2mVp-p)/open circuit
Phase setting resolution:	0.001º (setting range −1800.000º to +1800.000º)
Duty cycle setting range:	0.0000%–100.0000%, resolution 0.0001%
Fall time	15.0 ns–58.8 Ms, resolution 3 digits/0.1 ns
Arbitrary waveform data amplitude resolution:	16 bits

Parameter-variable waveforms let you instantly find and quickly create the waveform you need

Based on its track record of signal generator users and numerous requests, NF has equipped its instruments with an innovative Wave Library as "parameter-variable waveforms." "Parameter-variable waveforms" are, in effect, an "Easy Order" for waveforms. First select a pre-built waveform, then simply set the parameters specific to that waveform to easily obtain a waveform that exactly matches your target. The pre-built waveforms include 25 types for circuit applications, communication applications, mechanical applications, and more.

25 parameter-variable waveform types *The parameters listed below the waveforms can be changed

1. Unbalanced sine wave	2. Saturated sine wave	3. CF-controlled sine wave	4. Conduction angle controlled sine wave

• First-half amplitude • Second-half amplitude	• Clipping rate	• Crest factor	• Conduction angle
5. Stepped sine wave	6. Multi-cycle sine wave	7. Conduction phase controlled sine wave	8. Cutoff phase-controlled sine wave

• Number of steps	• Number of cycles • Start phase	• Burst completion phase • Conduction edge time	• Burst start phase • Falling edge time
9. Burst-on sine wave	10. Burst-off sine wave	11. Gaussian pulse	12. Lorentz pulse

• Burst start phase • Number of tremors • On-state time • Off-state time	• Burst start phase • Number of tremors • On-state time • Off-state time	• Standard deviation	• Half-value width
13. Haver sine wave	14. Sine half-wave pulse	15. Trapezoidal pulse	16. Sin(x)/x

• Width	• Width	• Edge width • Top base width	• Number of zero crossings
17. Exponential rise	18. Exponential fall	19. 2nd-order low-pass filter step response	20. Damped oscillation

• Time constant	• Time constant	• Natural frequency of low-pass filter • Low-pass filter Q value	• Oscillation frequency • Damped oscillation time constant
21. Oscillating surge	22. Pulse surge	23. Trapezoidal wave with offset	24. Half-sine edge pulse

• Oscillation frequency • Damped oscillation time constant • Falling time constant	• Rising time • Duration	• Leading delay • Rising edge width • Top base width • Falling edge width • Offset value	• Rising time • Fall time • Duty ratio
25. Bottom-edge reference sawtooth wave

• Symmetry

e.g. ·····

For a sine wave with CF (crest factor) control, the crest factor of the waveform can be set between 1.41 and 10.00. While checking the waveform, you can easily change the parameter (crest factor) by turning the Modifier Knob. The frequency, amplitude, oscillation mode, etc. can then be operated in the same way as for standard waveforms.*1

*1 The maximum frequency of variable-parameter waveforms is 5 MHz.

Applications

Meeting the needs of various waveforms across a wide range of fields

●Electronic devices and components

Drive testing of ultrasonic motors, differential input/balanced input testing, operation testing of LCD panels, copier drum (developing bias) testing, digital circuit evaluation testing, evaluation of various integrated circuits

●Communications and audio

Use as an IQ signal generator/clock source for next-generation mobile communication systems, echo cancellation testing, tone burst testing and linearity measurement of amplifiers and speakers, evaluation testing of wireless communication equipment

●Automotive

Simulation of transmission rotation signals, precision machining of turbochargers, inverter evaluation, ABS/electric power steering system testing, operation testing of various ECUs and sensors

●Machinery, control & construction

Commissioning and testing of industrial robots and servo systems, pulse motor driving, vibration testing of structures (used in combination with a vibration tester), wave generation experiments in water tanks, fatigue testing of various materials

●Others

Biological signal simulation, electrolysis/electroplating/battery charge-discharge testing, actuator testing, three-phase power supply simulation, power supply fluctuation testing, use as a frequency standard instrument in metrology equipment control rooms, use in experiments and practical training at universities and enterprises

Outline drawing

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NF Multifunction Signal Source WF1973/1974 Japan Circuit Design

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