Stanford Research Systems SR1 Audio Analyzer
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Stanford Research Systems SR1 is a high-performance audio analyzer with dual-channel FFTs, analog/digital signal generation to 200 kHz, and THD+N below -108 dB.
Product details
| Model | SR1 |
| Manufacturer | Stanford Research Systems |
| Category | RF & Microwave Test Equipment |
| Availability | Made to order |
Description
Overview
The Stanford Research Systems SR1 is a high-performance audio analyzer featuring versatile analog and digital signal generation with analysis capabilities up to 200 kHz. The instrument integrates a dedicated computer running Windows XP Embedded with flexible configuration panels, extensive measurement capabilities, and comprehensive scripting and remote programming support.
Key Features
- Dual-channel FFT analyzers operating symmetrically on analog and digital signals
- Analog signal generator with multitone waveforms up to 50 tones with adjustable frequency, amplitude, and phase
- Digital audio signal generator with FFT chirp waveforms for instant frequency response measurements
- Time Domain Detector for THD+N, amplitude, crosstalk, and digital interface measurements
- Continuously variable bandwidth limiting and standard weighting filters
- Digital audio sampling rates up to 192 kHz
- Internal timebase with 2 ppm accuracy; optional atomic rubidium reference (FS725) with +5×10⁻¹¹ accuracy
- Multiple interfaces: GPIB, RS-232, Ethernet (TCP/IP, VXI-11), and COM
- Full scripting support: VBScript, Jscript, and Python with access to all instrument capabilities
Applications
- Audio measurement and analysis
- Frequency response testing and spectral analysis
- THD and harmonic distortion measurements
- Digital audio interface testing
- Audio equipment characterization and validation
Specifications
| Total Harmonic Distortion + Noise | <-108 dB (analog system at 1 kHz, 20 kHz BW) |
| Maximum Frequency | 200 kHz |
| Analyzer Noise | <-114 dBu (20 kHz BW) |
| Flatness | +0.008 dB (analog system, 20 Hz to 20 kHz) |
| Crosstalk | <-140 dB (analog inputs) |
| Jitter | <800 ps (700 Hz to 100 kHz) |
| Maximum Digital Sampling Rate | 192 kHz |
| Timebase Accuracy | 2 ppm (internal); +5×10⁻¹¹ (optional rubidium) |
| Operating System | Windows XP Embedded |
| Interfaces | GPIB, RS-232, Ethernet (TCP/IP, VXI-11), COM |
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Stanford Research Systems SR1 Audio Analyzer
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