
KD-5100
Differential measurement system with resolution to a nanometer
- Two precisely matched sensors per channel give resolution to a nanometer
- Superior thermal and long-term stability of 5×10⁻⁶ inches/month or better
- Small package size: 2 × 2.12 × 0.75 inches
- Cryogenic sensors available
- High sensitivity up to 10 V/mil (394 mV/µm)
- Low power consumption: less than 2W @ ±15 Vdc typical
- Manufactured to MIL-H-38534 with MIL-SPEC components throughout
- MTBF better than 238,000 hours (space flight) and 55,000 hours (tactical)
- Radiation tolerance to 135 kRad
Specifications
| Resolution | To a nanometer (differential) |
|---|---|
| Measuring range | 15N up to ±0.035 in (±0.9 mm); 20N up to ±0.075 in (±1.9 mm) — aluminum target |
| Nonlinearity | ±0.1% to ±0.5% FSO (application dependent) |
| Output | ±10 Vdc maximum |
| Sensitivity | Up to 10 V/mil (394 mV/µm) |
| Long-term stability | 5×10⁻⁶ inches/month (nominal, stabilized at 70°F / 21°C) |
| Power consumption | Less than 2W @ ±15 Vdc typical |
| Package size | 2 × 2.12 × 0.75 inches |
| Radiation tolerance | 135 kRad |
| Qualification | MIL-H-38534 |
Sensors
| Sensor | Target Material | Static Resolution |
|---|---|---|
| 15N | Aluminum — smooth body, 0.188 in dia (0.172 in for -004) | Up to ±0.035 in (±0.9 mm) |
| 20N | Aluminum — 0.4 in dia base mount | Up to ±0.075 in (±1.9 mm) |
Certifications
Manufactured to MIL-H-38534 with MIL-SPEC components used throughout the electronics module wherever possible.
Options
Accessories
Matched sensor pairs, cables, and mounting hardware are available. Contact an applications engineer for configuration.
Frequently Asked Questions
What resolution does the KD-5100 achieve?
Using two precisely matched sensors per channel, the KD-5100 resolves positional change down to a nanometer, with long-term stability of 5×10⁻⁶ inches/month or better.
What applications is the KD-5100 designed for?
Night vision systems, precision telescope positioning, fast steering mirrors (FSM) for space and airborne use, and image stabilization — anywhere small size, stability, and nanometer resolution matter.
Is there a commercial (non-MIL-SPEC) version?
Yes — the DIT-5200 is a commercial equivalent for applications where MIL-SPEC qualification, size, weight, and power consumption are not critical.




