Microscope Specifications
Objective Lenses - 10 x (N.A. 0.25) and 20 x (N.A. 0.35)
Working Distance - > 0.5 inch
Resolution -
- 60 microinches ( 20x objective)
- 80 microinches ( 10x objective)
Depth of Focus -
- 40 microinches ( 20x objective)
- 80 microinches ( 10x objective)
Glass Disk Specifications
Diameter - 3.740 inches
Thickness - 0.100 inches
Microscope Translation Stages Specs
Motion - X-Y motion
Range - 2 x 2 inches
Resolution - 5 microinch step size |
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Dynamic Flying Height Tester
- Capable of measuring head/media spacings of zero (contact) to 40 microinches.
- Capable of taking up to 2,000 spacing measurements per revolution at 7200 RPM ( a
sampling frequency of 240 kHz).
- Detect airbearing resonant frequencies of up to 100 kHz.
Measurement Specifications
Measurement Range - less than 1 microinch to 40 microinches
Data Acquisition Time - 3 microseconds
Sampling Rate - up to 2000 measurements per revolution at 7200
RPM (240 kHz sampling rate)
Single Point Test Time - less than 1 second
Measurement Spot Size -
- .001 inch diameter (with 20x lens)
- .002 inch diameter (with 10x lens)
Throughput - greater than 60 heads per hour
Spindle Drive Specifications
Rotational Speed Range - 50 RPM to 7200 RPM
(bi-directional)
Rotational Speed Stability - +/- 0.1% (for speeds > than 100
RPM)
Spindle Translation Stage Specifications
Motion - X-Y Motion
Range - 4 x 6 inches
Resolution - 10 microinch step size |
