---
title: "Positioning Scale"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:POSITIONING_SCALE"
  data_integrity_hash: "b7a47dc0f8022dfb2875324a46d16c29"
  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:POSITIONING_SCALE"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/positioning-scale.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/positioning-scale"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-1000 mm with ±0.5 μm resolution at 25°C"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 60
    unit: "°C"
    consequence: "Thermal expansion coefficient mismatch between glass scale (α=8.5×10⁻⁶/K) and aluminum carriage (α=23.1×10⁻⁶/K) causing differential expansion &gt;1.5 μm at ΔT&gt;35K"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Contaminant ingress (≥ISO 4406 18/16/13 particle count) into optical readhead"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "IP67-rated sealing with labyrinth seals and positive-pressure nitrogen purge at 0.2 bar"
  - node_2:
      trigger: "Electromagnetic interference from adjacent servo drives exceeding 100 V/m at 10-100 MHz"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Differential RS-422 signaling with twisted-pair shielding and ferrite cores at cable entries"
bom_nodes:
  scale-body:
    type: "component"
    urn: "URN:CNFX:ME:SCALE_BODY"
    interface_type: "physical-logic-coupled"
  mounting-brackets:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_BRACKETS"
    interface_type: "physical-logic-coupled"
  protective-cover:
    type: "component"
    urn: "URN:CNFX:ME:PROTECTIVE_COVER"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
  - standard: "ISO 1101:2017 - GEOMETRICAL PRODUCT SPECIFICATIONS (GPS)"
    scope: "Verified Engineering Specification"
  - standard: "DIN 7182-1:2016 - LINEAR MOTION ROLLING BEARINGS - PART 1: LINEAR BALL BEARINGS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/positioning-scale.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "2f48a61c9c72ffda19eec02093c337ed8d4c4c547071b096135c8c5f50d5ac93"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Positioning Scale

## 1. Technical Definition
A precision measurement component integrated into sliding carriages to provide accurate position feedback and control.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-1000 mm with ±0.5 μm resolution at 25°C**. Failure boundary: **Positional error exceeding ±2.5 μm or temperature exceeding 60°C**, Mechanism: **Thermal expansion coefficient mismatch between glass scale (α=8.5×10⁻⁶/K) and aluminum carriage (α=23.1×10⁻⁶/K) causing differential expansion &gt;1.5 μm at ΔT&gt;35K**.

### 2.1 Analytical Physics Model
Governed by the **Combined Measurement Uncertainty**:

> **Primary Equation**: $u_c = \sqrt{\sum u_i^2}$  
> **Engineering Impact**: Defines the precision confidence interval for inspection.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| u_i | Standard Uncertainty components | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Contaminant ingress (≥ISO 4406 18/16/13 particle count) into optical readhead | 8 | Signal amplitude degradation below 10% of nominal 1 Vpp | IP67-rated sealing with labyrinth seals and positive-pressure nitrogen purge at 0.2 bar |
| Electromagnetic interference from adjacent servo drives exceeding 100 V/m at 10-100 MHz | 8 | Bit error rate &gt;10⁻⁹ in position data transmission | Differential RS-422 signaling with twisted-pair shielding and ferrite cores at cable entries |

## 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**: **CNC Machining Center**, **Coordinate Measuring Machine**, **Laser Interferometer Calibration System**  
**Downstream Applications**: CNC Machine Tools, Industrial Robots, Precision Assembly Lines  

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

### Q: What materials are used in positioning scales for machinery manufacturing?
**A**: Our positioning scales utilize stainless steel and aluminum alloy for structural components, with optical glass or ceramic scales for precision measurement, ensuring durability and accuracy in industrial environments.

### Q: How does a positioning scale integrate with sliding carriages?
**A**: The positioning scale mounts directly onto sliding carriages using specialized brackets, providing real-time position feedback through optical or magnetic encoding to enable precise control and repeatability in machinery operations.

### Q: What protection features are included with industrial positioning scales?
**A**: Each positioning scale includes a protective cover to shield sensitive components from debris, coolant, and environmental contaminants, with sealing options available for harsh manufacturing conditions.

## 6. Manufacturing Compliance
- ISO 9001:2015 - QUALITY MANAGEMENT SYSTEMS
- ISO 1101:2017 - GEOMETRICAL PRODUCT SPECIFICATIONS (GPS)
- DIN 7182-1:2016 - LINEAR MOTION ROLLING BEARINGS - PART 1: LINEAR BALL BEARINGS

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Positioning Scale](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/positioning-scale)**

### 🌐 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**: POSITIONING_SCALE | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 3a24b180
