ZYGO ZMI-2001 BD 8020-0210-01-J Measurement Board

ZYGO ZMI-2001 BD 8020-0210-01-J

ZYGO ZMI-2001 MEAS BD 8020-0210-01-J
(Single-Axis 6U VME Measurement Board)

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1. Product Overview

The ZMI-2001 is a single-axis displacement measurement interferometer board from the Zygo ZMI 2000 series, model 8020-0210-01-J.
Designed in 6U VME format, this board is intended for high-precision displacement measurement, optical interferometry, and nanometer-level positioning systems. It can operate on VME or ISA buses and provides high-speed data transfer via the P2 interface.

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2. Key Technical Specifications

Parameter	Specification
Number of Axes	Single-axis (1 axis per board; system expandable up to 8 axes)
Form Factor	Standard 6U VME chassis size
Power Consumption	+5 V ± 5 % @ 3.5 A (for all ZMI-2001/2002/PC boards) +12 V ± 10 % @ 0.1 A (for ZMI PC only)
Resolution	λ/2048 ≈ 0.31 nm (2-Pass PMI) λ/4096 ≈ 0.15 nm (4-Pass PMI)
Measurement Range	±10.6 m (2-Pass PMI) ±21.2 m (1-Pass LI)
Maximum Velocity	2.1 m/s (2-Pass PMI) 4.2 m/s (1-Pass LI)
Interface Types	VME-bus (A16/A24 address, D16/D32 data) ISA-bus (16-bit) P2 bus (32-bit)
Data Rate	Up to 7.7 MHz via P2 interface (supports up to 16 axes)
Time/Position Data Format	Position: 36-bit 2’s complement Velocity: 32-bit 2’s complement Time: 32-bit 2’s complement (range 107.4 s, resolution 25 ns)
Optical Fiber Signals	Reference fiber + measurement fiber
Synchronization	External clock input/output (optional)
Additional Features	Error state monitoring (signal, PLL, DLL, loss, jitter, etc.) Supports up to 8-axis synchronization (1 axis per board) UL94 V-0 flammability rating

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3. Typical Applications

• Scientific Research: Optical interferometers, laser displacement metrology, nanometer positioning platforms
• Industrial Manufacturing: Precision machining, semiconductor lithography, optical component assembly
• Quality Inspection: High-accuracy displacement and form-error measurement, surface profile analysis

These applications demand sub-nanometer resolution, wide measurement range, and high-speed data acquisition — all of which are fully supported by the ZMI-2001.

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4. Usage Notes

• Power Supply: Ensure stable +5 V ± 5 % supply with at least 3.5 A current.
• Thermal Management: The 6U VME board generates heat under full load; adequate ventilation in the chassis is recommended.
• Interface Compatibility:
  • For ISA-bus systems, use an ISA-to-VME adapter.
  • For VME systems, directly insert the board into the VME backplane.
• Calibration: Before first use, perform fiber connection and reference signal calibration according to Zygo’s guidelines to achieve optimal resolution.

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Summary

The ZYGO ZMI-2001 MEAS BD 8020-0210-01-J is a single-axis 6U VME measurement board designed for ultra-precise displacement metrology. Featuring sub-nanometer resolution, wide measurement range, and a high-speed P2 data interface, it is widely used in both scientific research and industrial precision measurement applications.

Main Brand:

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