INDUSTRY COMPONENT

Sensing Tip/Head

A sensing tip or head is the contact point of a measurement probe that detects dimensional or surface characteristics in industrial metrology.

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Component Specifications

Definition
The sensing tip or head is a critical component of measurement probes used in coordinate measuring machines (CMMs), profilometers, and other precision metrology equipment. It serves as the physical interface that contacts the workpiece to collect dimensional data, surface topography, or geometric features. These components are engineered for minimal deformation, high wear resistance, and consistent contact behavior to ensure measurement accuracy and repeatability across thousands of cycles.
Working Principle
The sensing tip operates by making physical contact with the target surface, transmitting displacement or force signals through the probe's internal mechanism (typically strain gauges, piezoelectric sensors, or optical encoders). When contact occurs, the tip deflects slightly, generating an electrical signal that corresponds to the precise position of contact. This data is processed to calculate dimensional measurements, surface profiles, or geometric tolerances.
Materials
Ruby (synthetic sapphire) is standard for spherical tips due to extreme hardness (9 Mohs) and wear resistance. Alternative materials include silicon nitride, zirconia, or diamond-coated carbide for specialized applications. Shafts are typically made of stainless steel, tungsten carbide, or ceramic for stiffness and thermal stability.
Technical Parameters
  • Hardness 1500-2000 HV (Ruby)
  • Sphericity <0.1μm
  • Tip Diameter 0.1mm to 10mm
  • Maximum Force 0.1N to 1N
  • Stem Diameter 1mm to 6mm
  • Temperature Range 0°C to 40°C
Standards
ISO 10360, ISO 14253, DIN 2257

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Sensing Tip/Head.

measurement probe tip CMM probe head metrology sensor ruby stylus coordinate measuring machine dimensional measurement precision probe Sensing Tip/Head Sensing Tip/Head in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Measurement Probe

A sensing element that directly contacts or interacts with the material surface to detect thickness variations.

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Engineering Analysis

Risks & Mitigation
  • Tip wear causing measurement drift
  • Contamination from oils/debris
  • Impact damage from collisions
  • Thermal expansion affecting accuracy
FMEA Triads
Trigger: Abrasive wear from repeated contact
Failure: Increased tip diameter and loss of sphericity
Mitigation: Regular calibration, use of harder materials (diamond coating), and implementing probe approach optimization
Trigger: Improper cleaning procedures
Failure: Contamination buildup affecting contact consistency
Mitigation: Establish cleaning protocols with approved solvents and lint-free wipes, implement regular maintenance schedules

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.1μm for diameter, ±0.05μm for sphericity
Test Method
Laser interferometry for dimensional verification, roundness testing for sphericity, hardness testing per ISO 6507

Buyer Feedback

★★★★☆ 4.8 / 5.0 (15 reviews)

"Reliable performance in harsh Machinery and Equipment Manufacturing environments. No issues with the Sensing Tip/Head so far."

"Testing the Sensing Tip/Head now; the technical reliability results are within 1% of the laboratory datasheet."

"Impressive build quality. Especially the technical reliability is very stable during long-term operation."

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Frequently Asked Questions

Why is ruby commonly used for sensing tips?

Ruby (synthetic sapphire) offers exceptional hardness (9 Mohs), excellent wear resistance, and good chemical stability, making it ideal for maintaining measurement accuracy over thousands of contact cycles without significant deformation.

How often should sensing tips be calibrated or replaced?

Calibration should be performed daily or before critical measurements. Tip replacement depends on usage intensity—typically every 6-12 months for continuous operation, or when wear exceeds 0.5μm deviation from original sphericity.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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Sensing Shaft Sensor body