Eddy-Current Sensor Probes

Reliable probes for use in hostile or clean environments. Also available as vacuum compatible.

 

 

• U3
  • Range: 0.5 mm | 0.020 inch
  • Near Gap: 0.05 mm | 0.002 inch
• U5
  • Range: 1.25 mm | 0.050 inch
  • Near Gap: 0.25 mm | 0.010 inch
• U8
  • Range: 2.00 mm | 0.080 inch
  • Near Gap: 0.35 mm | 0.015 inch
• U12
  • Range: 3.50 mm | 0.140 inch
  • Near Gap: 0.60 mm | 0.025 inch
• U18
  • Range: 5.00 mm | 0.200 inch
  • Near Gap: 0.75 mm | 0.030 inch
• U25
  • Range: 8.00 mm | 0.320 inch
  • Near Gap: 1.25 mm | 0.050 inch
• U38
  • Range: 12.5 mm | 0.500 inch
  • Near Gap: 1.50 mm | 0.060 inch
• U50
  • Range: 15.00 mm | 0.600 inch
  • Near Gap: 2.00 mm | 0.080 inch

 

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Mounting Clearances

To prevent mounting hardware or other metallic objects from interfering in precision measurements, eddy-current sensor probes must be mounted with the following clearances based on probe diameter (X).

• U3 Probe

  • Standard Probe: -25°C to +125°C | High Temperature Version Not Available

• U5-18 Probes

  • Standard Probes: -25°C to +125°C | High Temperature Probes: -25°C to +200°C

• U25-50 Probes

  • Standard Probes: -25°C to +125°C | High Temperature Probes: -25°C to +175°C

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Probe Cables

Standard probes have PUR (polyurethane) jackets. High-Temperature probes have FEP jackets. FEP cables can be custom ordered for standard temperature range probes.

 

 

 

 

More details on probe cabling are available in our Eddy-Current Probe Cabling Considerations TechNote.

Armored Cable

Armored cable is available on 12 mm (U12) and larger probes.

 

 

 

 

 

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Mechanical Details

B-Threaded Body: U3B-U18B | U25B-U50B
C-Smooth Body: U3C-U12C
Custom Probes

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B – Threaded Body

U3B – U18B

Life-Cycle Status: Active

 

 

 

 

U3B

• A: M3x.5
• B: 2.0 mm | 0.08 inch
• C: 3.0 mm | 0.12 inch
• D: 21.1 mm | 0.83 inch
• E: 13.0 mm | 0.51 inch
• Range: 0.50 mm | 0.020 inch
• Near Gap: 0.05 mm | 0.002 inch
• Download STEP File

U5B

• A: M5x.8
• B: 3.4 mm | 0.13 inch
• C: 3.0 mm | 0.12 inch
• D: 23.0 mm | 0.91 inch
• E: 18.0 mm | 0.71 inch
• Range: 1.25 mm | 0.050 inch
• Near Gap: 0.25 mm | 0.010 inch
• Download STEP File

U8B

• A: M8x1
• B: 6.2 mm | 0.24 inch
• C: 5.0 mm | 0.20 inch
• D: 25.0 mm | 0.99 inch
• E: 18.0 mm | 0.71 inch
• Range: 2.00 mm | 0.080 inch
• Near Gap: 0.35 mm | 0.015 inch
• Download STEP File

U12B

• A: M12x1
• B: 10.0 mm | 0.39 inch
• C: 7.0 mm | 0.28 inch
• D: 29.0 mm | 1.15 inch
• E: 18.0 mm | 0.71 inch
• Range: 3.50 mm | 0.140 inch
• Near Gap: 0.60 mm | 0.025 inch
• Download STEP File

U18B

• A: M18x1
• B: 15.8 mm | 0.62 inch
• C: 9.0 mm | 0.36 inch
• D: 44.0 mm | 1.74 inch
• E: 31.0 mm | 1.22 inch
• Range: 5.00 mm | 0.200 inch
• Near Gap: 0.75 mm | 0.030 inch
• Download STEP File

U25B – U50B

Life-Cycle Status: Active

 

 

 

 

 

U25B

• A: M18x1
• B: 25.0 mm | 0.99 inch
• C: 15.0 mm | 0.59 inch
• D: 61.0 mm | 2.40 inch
• E: 42.0 mm | 1.65 inch
• Range: 8.00 mm | 0.320 inch
• Near Gap: 1.25 mm | 0.050 inch
• Download STEP File

U38B

• A: M18x1
• B: 38.0 mm | 1.50 inch
• C: 20.0 mm | 0.79 inch
• D: 80.0 mm | 3.15 inch
• E: 54.0 mm | 2.13 inch
• Range: 12.5 mm | 0.500 inch
• Near Gap: 1.50 mm | 0.060 inch
• Download STEP File

U50B

• A: M18x1
• B: 50.0 mm | 1.97 inch
• C: 25.0 mm | 0.99 inch
• D: 98.0 mm | 3.86 inch
• E: 69.0 mm | 2.72 inch
• Range: 15.0 mm | 0.600 inch
• Near Gap: 2.00 mm | 0.080 inch
• Download STEP File

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C – Smooth Body

U3C – U12C

Life-Cycle Status: Active

 

 

 

 

 

 

 

 

U3C

• A: 2.92 mm | 0.115 inch
• B: 2.0 mm | 0.08 inch
• C: 3.0 mm | 0.12 inch
• D: 13.0 mm | 0.51 inch
• E: 5.0 mm | .20 inch
• F; 3.6 mm | 0.14 inch
• Range: 0.50 mm | 0.020 inch
• Near Gap: 0.05 mm | 0.002 inch
• Download STEP File

U5C

• A: 4.90 mm | 0.193 inch
• B: 3.4 mm | 0.13 inch
• C: 3.0 mm | 0.12 inch
• D: 18.0 mm | 0.71 inch
• E: –
• F; –
• Range: 1.25 mm | 0.050 inch
• Near Gap: 0.25 mm | 0.010 inch
• Download STEP File

U8C

• A: 7.90 mm | 0.311 inch
• B: 6.2 mm | 0.24 inch
• C: 5.0 mm | 0.20 inch
• D: 18.0 mm | 0.71 inch
• E: –
• F; –
• Range: 2.00 mm | 0.080 inch
• Near Gap: 0.35 mm | 0.015 inch
• Download STEP File

U12C

• A: 11.89 mm | 0.468 inch
• B: 10.0 mm | 0.39 inch
• C: 7.0 mm | 0.28 inch
• D: 18.0 mm | 0.71 inch
• E: –
• F; –
• Range: 3.50 mm | 0.140 inch
• Near Gap: 0.60 mm | 0.025 inch
• Download STEP File

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Custom Probes

We are committed to working with our customers to ensure their success by providing optimized sensing solutions. Optimized solutions often require custom probe shapes and styles. We will work with you to develop an effective solution for you application.

We are built for customization.