The Ametek / EG&G / Princeton Applied Research 162 Boxcar Averager is a signal recovery mainframe designed to extract repetitive signals from noisy backgrounds through synchronous sampling and averaging. The instrument measures signal amplitude at specific time intervals with precise timing control, delivering improved signal-to-noise ratio for analytical applications across physics, chemistry, and engineering. When paired with processor modules such as the Model 163 Sampled Integrator or Model 164 Gated Integrator, it forms a complete gated signal-recovery system capable of fixed or scanned aperture analysis.
Technical Specifications
• Manufacturer: Ametek / EG&G / Princeton Applied Research
• Model: 162 Boxcar Averager (Mainframe)
• Aperture Delay Range: 5% to 100% of delay range, 1-2-5 sequence, 0.1 µs to 50 ms
• External Trigger Level: ±15 V adjustable
• External Trigger Input Impedance: 50 kΩ
• External Trigger Maximum Input: ±100 V
• Output Low-Pass Filter Time Constant: 100 µs to 100 s adjustable
– Key Features
• Synchronous sampling with front-panel aperture delay control
• Multiple trigger modes: external (positive or negative edge), line trigger, internal trigger
• Gated signal averaging with controlled sampling integration
• Variable time constant integrator in mainframe signal processing
• Rear-panel scan functions for internal or external scanned analysis
• Dual-channel output with difference selection capability
• Optional processing functions: Product (162/95), Log Ratio (162/96), Ratio (162/97)
• Digital Storage Option (162/99) for extremely low repetition rate signal averaging
– Typical Applications
Repetitive signal extraction from noise-dominated measurements in spectroscopy, transient analysis, weak-signal detection, and time-resolved analytical techniques requiring improved signal fidelity.
– Compatibility & Integration
The Model 162 mainframe integrates with Model 163 Sampled Integrator (aperture resolution from 100 ps to 1 ns with selected sampling head) and Model 164 Gated Integrator processor modules to configure complete boxcar averaging systems tailored to specific temporal resolution and signal processing requirements.
