Electronic test instruments that produce various types of electrical waveforms at specified frequencies and amplitudes for testing, troubleshooting, and characterizing electronic systems.

Signal Generators

Signal generators are fundamental test equipment devices used in electrical engineering and electronics for generating precise electrical waveforms. These versatile instruments serve as essential tools for development, testing, and maintenance of electronic systems.

Basic Principles

Signal generators create controlled electrical signals through various methods:

Digital synthesis using Digital Signal Processing
Direct digital synthesis (DDS)
Analog circuits for basic waveform generation
Phase-locked loops for frequency stability

Types of Waveforms

Standard Waveforms

Sine waves - For basic AC testing
Square waves - For digital circuit testing
Triangle waves - For linearity testing
Pulse signals - For timing and trigger applications

Advanced Signal Types

Key Features

Frequency Control

Range selection
Fine-tuning capability
Frequency stability
Phase control

Amplitude Control

Variable output level
Attenuation
Output impedance matching
Voltage calibration

Applications

Laboratory Testing

Industrial Uses

Educational Applications

Modern Features

Digital Integration

Advanced Capabilities

Selection Criteria

When choosing a signal generator, consider:

Frequency range requirements
Waveform quality
Output power capabilities
Distortion specifications
Modulation capabilities

Maintenance and Calibration

Regular Maintenance

Quality Assurance

Future Trends

Signal generator technology continues to evolve with:

Safety Considerations

Important safety aspects include:

Signal generators remain essential tools in modern electronics, bridging theoretical understanding with practical applications in testing and development. Their evolution continues to support advances in electronic design, wireless communications, and digital systems.