The Agilent/Keysight E1708A Remote Dynamic Receiver delivers sub-nanometer resolution for systems in motion, operating in tandem with the Keysight 10897D High Resolution Laser Axis Board. The instrument uses fiber optic transmission to separate heat-generating components from the measurement area, enabling improved accuracy and repeatability while providing flexible mounting and easier access to receiver adjustments. Output is a differential square wave with minimal phase processing errors, ensuring high-fidelity measurements even during dynamic stage movement and power level variations.
Technical Specifications
Performance
• Output: Differential square wave at Doppler-shifted frequency, 100 kHz to 7.2 MHz
• Sensitivity: 2.2 µW (2 m fiber optic cable); 5 µW (10 m fiber optic cable)
• Dynamic range: 10:1
• Measurement errors: ±1 LSB across entire frequency range
• Fixed data delay: 86 ns; additional fixed delay of 1190 ±20 ns between actual position and hardware output lines
• Signal power immunity: Resistant to dynamic changes in measurement signal power level
Optical
• Standard fiber optic cable: 2 m (plastic); extended lengths available
• Self-aligning with Keysight 10715A, 10716A, 10717A, 10719A, 10721A, 10735A, 10736A
• Alignment tolerances: Roll ±3°; Pitch ±1°; Yaw ±1°
Power & Physical
• Power requirement: 15 V @ <250 mA
• Power dissipation: 3.8 W (typical)
• Receiver dimensions: 78.1 mm H × 115.6 mm W × 19.8 mm D
• Mounting holes: 40.0 mm H × 108.0 mm W rectangle
• Weight (receiver): 170 g; remote sensor with 2 m cable: 26 g
• Operating temperature: 0 to 40 °C
– Key Features
• Remote sensor assembly enables thermal isolation and improved measurement stability
• Doppler-shifted frequency output (100 kHz–7.2 MHz) for direct integration with laser axis electronics
• Minimal phase processing errors optimized for dynamic measurement accuracy
• Self-aligning optical interface reduces installation complexity
• Compact receiver footprint with standard mounting pattern
– Compatibility & Integration
Designed for use with Keysight 10897D (also 10897B) High Resolution Laser Axis Board. Remote sensor mounts directly to specified interferometer optics: 10715A, 10716A, 10717A, 10719A, 10721A, 10735A, 10736A.
