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ECD140 cRIO,
High-Performance
ECD140 Documents
User ManualEddy-Current Sensor CatalogCE Declaration of ConformityMore Eddy-Current Literature
Related TechNotes
Application Notes
Measure Micro-Displacement Position Measurement Thread Detection More Application Notes
The ECD140 plugs directly into a National Instruments CompactRIO system for instant use with LabVIEW.
Features 
| LabVIEW Drivers | Specifications | Probes & Ranges
Life-Cycle Status: Active
Because of high resolutions, exports of the ECD140 may require an export license.
ECD140e
The ECD140e has different resolution specifications and can ship without an export license.
Firmware Version |
Demo Files |
Manual |
| Rev 2 | ECD14x-Basic-Rev-2.zip (0.8M) |
ECD140 Manual Rev 1 (250K pdf) |
The ECD140 is intended for LabVIEW users experienced in FPGA and Real Time processor programming on the RIO platform. The device and the included software provide a tool kit for developers creating a complete system which requires precision noncontact displacement sensors. The system is not intended to be out‑of‑the‑box operational, but requires implementation and programming by experienced LabVIEW FPGA users.
Typical specifications for standard targets and probes. Actual values depend on probe, target, and calibration. Specifications assume a target area at least three times the diameter of the probe.
Resolution: |
ECD140: 0.002-0.025% RMS @ 15 kHz |
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Linearity |
±0.2% of Range | ||
Error Band |
±0.4% of Range | ||
Bandwidth |
15 kHz | ||
Driver Temperature Drift(15 °C-50°C) |
nonferrous | U8 Probe | ±0.06% F.S./°C |
| U12 Probe | |||
| ferrous | U8 Probe | ||
| U12 Probe | |||
Probe Temperature Drift(15 °C-65°C, except where noted) |
nonferrous | U8 Probe | 0.02% F.S./°C |
| U12 Probe | ±0.03% F.S./°C | ||
| ferrous | U8 Probe | ±0.04% F.S./°C | |
| U12 Probe | ±0.03% F.S./°C | ||
Driver Operating Temperature |
4°C-50°C | ||
Probe Operating TemperaturesStandard Probes come with PUR (Polyurethane) jacketed cables. High Temperature Probes have FEP jackets. Other temperature ranges may be possible. Contact us for more information. Standard Probes: IP67 High Temperature Probes: IP63 |
U3 Probe | Standard Probe (PUR Cable): High Temperature Version Not Available |
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| U5-18 Probes | Standard Probes: High Temperature Probes: |
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| U25-50 Probes | Standard Probes: High Temperature Probes: |
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Larger Probe Diameter = Larger Range Probes can be ordered as vacuum compatible; Custom probes are available. |
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Listed specifications are for standard target materials: Nonferrous Al 6160, Ferrous 4140 Steel.
Rangemm |
Near Gapmm |
Probe |
Target |
ECD140
µm |
ECD140e
µm |
| 2.00 |
0.35 |
U8 | nonferrous | 0.145 |
0.4 |
| ferrous | 0.180 |
0.4 |
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| 3.50 |
0.60 |
U12 | nonferrous | 0.240 |
0.4 |
| ferrous | 0.390 | 0.390 | |||
| * RMS @ 15 kHz. Peak-to-Peak values are approximately 8-10 times higher In high EMI environments, output noise may rise to 0.030 VRMS (0.3% resolution) |
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