---
title: "Tactile probe stylus"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:TACTILE_PROBE_STYLUS"
  data_integrity_hash: "362a60c405464e23e7fb690d5e275fdd"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:TACTILE_PROBE_STYLUS"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/tactile-probe-stylus.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/tactile-probe-stylus"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.1-5.0 N contact force, 0.1-100 μm deflection"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 6.0
    unit: "N"
    consequence: "Exceeding yield strength of synthetic ruby (4000 MPa) at Hertzian contact stress concentration"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Abrasive particle contamination (≥5 μm silicon carbide)"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrated air purge system with 0.3 μm filtration at 2 bar pressure"
  - node_2:
      trigger: "Thermal expansion mismatch between tungsten carbide shaft (4.5×10⁻⁶/K) and aluminum mount (23×10⁻⁶/K)"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Invar 36 alloy coupling with 1.2×10⁻⁶/K coefficient of thermal expansion"
bom_nodes:
  stylus-tip:
    type: "component"
    urn: "URN:CNFX:ME:STYLUS_TIP"
    interface_type: "physical-logic-coupled"
  stylus-shaft:
    type: "component"
    urn: "URN:CNFX:ME:STYLUS_SHAFT"
    interface_type: "physical-logic-coupled"
  mounting-shank:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_SHANK"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 10360-2:2009 - GEOMETRICAL PRODUCT SPECIFICATIONS (GPS) - ACCEPTANCE AND REVERIFICATION TESTS FOR COORDINATE MEASURING MACHINES (CMM)"
    scope: "Verified Engineering Specification"
  - standard: "DIN EN ISO 10360-5:2020 - GEOMETRICAL PRODUCT SPECIFICATIONS (GPS) - ACCEPTANCE AND REVERIFICATION TESTS FOR COORDINATE MEASURING SYSTEMS (CMS) - PART 5: CMMS USING SINGLE AND MULTIPLE STYLUS CONTACTING PROBING SYSTEMS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/tactile-probe-stylus.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "e2b4e1806d5a88865cc495955c2b3911bfabd5d772178b1723a74748ae3eedb7"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Tactile probe stylus

## 1. Technical Definition
A precision contact sensor component used for dimensional measurement and surface profiling.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.1-5.0 N contact force, 0.1-100 μm deflection**. Failure boundary: **6.0 N contact force causing permanent plastic deformation of ruby sphere tip**, Mechanism: **Exceeding yield strength of synthetic ruby (4000 MPa) at Hertzian contact stress concentration**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Abrasive particle contamination (≥5 μm silicon carbide) | 8 | Spherical tip geometry deviation exceeding 0.2 μm form error | Integrated air purge system with 0.3 μm filtration at 2 bar pressure |
| Thermal expansion mismatch between tungsten carbide shaft (4.5×10⁻⁶/K) and aluminum mount (23×10⁻⁶/K) | 8 | Probe deflection calibration drift exceeding 0.5 μm/100K temperature delta | Invar 36 alloy coupling with 1.2×10⁻⁶/K coefficient of thermal expansion |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | mm | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Coordinate Measuring Machine (CMM)**, **Surface Profilometer**, **Calibration Fixture**  
**Downstream Applications**: Aerospace Components, Medical Implants, Automotive Engine Parts  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What are the advantages of using a ruby tip on a tactile probe stylus?
**A**: Ruby tips offer excellent wear resistance, low friction, and high hardness, making them ideal for precision dimensional measurement with minimal surface damage and long service life in machinery manufacturing applications.

### Q: How does stylus shaft material affect measurement accuracy?
**A**: The stylus shaft's stiffness and vibration damping properties directly impact measurement precision. Proper material selection minimizes deflection and resonance, ensuring accurate surface profiling and dimensional data collection in industrial metrology.

### Q: When should I choose tungsten carbide versus silicon nitride for stylus tips?
**A**: Tungsten carbide provides superior durability for high-frequency contact measurements, while silicon nitride offers better thermal stability and corrosion resistance for harsh manufacturing environments. Selection depends on specific application requirements and measurement conditions.

## 6. Manufacturing Compliance
- ISO 10360-2:2009 - GEOMETRICAL PRODUCT SPECIFICATIONS (GPS) - ACCEPTANCE AND REVERIFICATION TESTS FOR COORDINATE MEASURING MACHINES (CMM)
- DIN EN ISO 10360-5:2020 - GEOMETRICAL PRODUCT SPECIFICATIONS (GPS) - ACCEPTANCE AND REVERIFICATION TESTS FOR COORDINATE MEASURING SYSTEMS (CMS) - PART 5: CMMS USING SINGLE AND MULTIPLE STYLUS CONTACTING PROBING SYSTEMS

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Tactile probe stylus](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/tactile-probe-stylus)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **3** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: TACTILE_PROBE_STYLUS | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 6bb43d53
