For example: Agilent E4440A or Anritsu 68369
PC Axis Board

Model:10885A

Manufactured by: Keysight / Agilent

Category:Accessory

Keysight / Agilent 10885A - Accessory

Keysight / Agilent 10885A Overview

The Agilent 10885A PC axis board, a register-programmed position axis board, is ideal for making open-loop measurements and for providing position data for custom closed-loop servo electronics. It provides a 32-bit position word (in fractions of a wavelength) that is readable over a PC backplane and is also available from a real-time hardware output.

Features:

  • PC Backplane Position Output
  • Data Format:
  • Units: fractions of a wavelength
  • 32 bits (4 bytes)
  • 2''s Complement
  • Positive Logic
  • Least Significant Bit (one count) equals resolution
  • Typical Data Update Rate Over Backplane (Compiled Quick Basic Program):
  • 80286 @ 8 MHz: 58 kHz
  • 80386 @ 25 MHz: 74 kHz
  • 80486 @ 25 MHz: 105 kHz
  • Data Age and Sample Ambiguity:
  • After a sample operation, the value in the position register will reflect an actual position that occurred 0.1 to 1.4 us before the sample operation was initiated.
  • Sample Delay:
  • The position register may be read 1.5 us after a sample operation.
  • Connector Position Output
  • Data Format:
  • Units: fractions of a wavelength
  • 2''s Complement
  • 32-bit parallel binary
  • Positive Logic
  • Least Significant Bit (one count) equals resolution
  • Data Update Rate:
  • Agilent 5517A: 1.5 - 2.0 MHz
  • Agilent 5517B: 1.9 - 2.4 MHz
  • Agilent 5517C: 2.4 - 3.0 MHz
  • (Hardware included to synchronize to slower clocks.)
  • Data Age:
  • Agilent 5517A: 2.1 - 4.1 us
  • Agilent 5517B: 1.8 - 3.3 us
  • Agilent 5517C: 1.5 - 2.7 us
  • Data Age is dependent on the laser head reference signal (split-frequency) and on knowing exactly when, in relation to the rising edge of the Error Clock, the Position Error lines are sampled. Call this time deltaT.
  • Data Age =
  • 0.34 us + deltaT us + ((4.0 +/- 0.5) / (Reference (in MHz))) us
  • Additionally, the Data Age may vary up to 0.1 us typically and up to 0.25 us in a worst case situation as a result of the Reference frequency varying over time.
  • Power Requirements (typical)
  • 5 Vdc at 1.6 A
  • +/-12 Vdc at 0.015 A
  • Weight
  • 0.30 kg (0.65 lb)
  • Operating Temperature
  • 0 - 40 degrees C (32 - 104 degrees F)
  • ISA Compatibility
  • Standard XT-size board which supports 8-bit bus transfers
  • DOS programming environment saves development time
  • Eight-bit bus transfers provide compatibility with standard software programs
  • Included software programs provide fast setup and data gathering
  • Integrated board functions reduce system size, cost, and complexity

General

  • Platform and size: PC-ISA-XT, 98 x 339 mm
  • Number of Axes per Board: 1
  • Resolution Extension: x32
  • External Sample Inputs: 1

Operation with Plane Mirror Optics

  • Resolution: 4.9 nm
  • Maximum Velocity (also limited by laser head): 460 mm/sec

Timing

  • Position Data Update Rate: 1/Ref Freq
  • External Sample Uncertainty: ± 1/Ref Freq

Special Features

  • 32-bit, 2´s Complement Hardware Position Output
  • 32-bit Programming API available for Windows 9x, NT, 2000, XP

How can we help you with today?