---
title: "Sensor Unit"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:SENSOR_UNIT"
  data_integrity_hash: "f0bfd1947cef7471d44fb9e552ba4c4a"
  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:SENSOR_UNIT"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/sensor-unit.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/sensor-unit"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.1-10.0 mm displacement sensing range with ±0.05 mm accuracy at 20°C ambient temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 4.75
    unit: "VDC"
    consequence: "Photodiode saturation at 650 nm wavelength due to excessive material reflectivity (&gt;85% albedo) or optical path contamination reducing light transmission below 15% of nominal intensity"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Electrostatic discharge exceeding 8 kV contact discharge per IEC 61000-4-2"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "TVS diode array with 5 pF capacitance and 400 W peak pulse power rating at 5 V clamping voltage"
  - node_2:
      trigger: "Mechanical vibration at 120 Hz resonance frequency exceeding 2.5 g RMS acceleration"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Epoxy adhesive with 25 MPa tensile strength and -40°C to 150°C operational temperature range"
bom_nodes:
  sensor-head:
    type: "part"
    urn: "URN:CNFX:ME:SENSOR_HEAD"
    interface_type: "physical-logic-coupled"
  signal-processor:
    type: "part"
    urn: "URN:CNFX:ME:SIGNAL_PROCESSOR"
    interface_type: "physical-logic-coupled"
  mounting-bracket:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_BRACKET"
    interface_type: "physical-logic-coupled"
  connection-interface:
    type: "component"
    urn: "URN:CNFX:ME:CONNECTION_INTERFACE"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
  - standard: "IEC 60751:2008 INDUSTRIAL PLATINUM RESISTANCE THERMOMETERS AND PLATINUM TEMPERATURE SENSORS"
    scope: "Verified Engineering Specification"
  - standard: "EN 60529:1991 DEGREES OF PROTECTION PROVIDED BY ENCLOSURES (IP CODE)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/sensor-unit.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "f08ae3c1710e4c390fd5bb6d9605b2f715bb146eb15da39bea11222d98b56750"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Sensor Unit

## 1. Technical Definition
A detection component in web guiding systems that monitors material position and edge alignment.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.1-10.0 mm displacement sensing range with ±0.05 mm accuracy at 20°C ambient temperature**. Failure boundary: **Sensor output voltage exceeds 4.75 VDC or drops below 0.25 VDC from nominal 0-5 VDC range, corresponding to &gt;95% or &lt;5% of full-scale displacement**, Mechanism: **Photodiode saturation at 650 nm wavelength due to excessive material reflectivity (&gt;85% albedo) or optical path contamination reducing light transmission below 15% of nominal intensity**.

### 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 |
| :--- | :--- | :--- | :--- |
| Electrostatic discharge exceeding 8 kV contact discharge per IEC 61000-4-2 | 8 | CMOS sensor IC latch-up causing permanent 2.5 mA leakage current at 5 V supply | TVS diode array with 5 pF capacitance and 400 W peak pulse power rating at 5 V clamping voltage |
| Mechanical vibration at 120 Hz resonance frequency exceeding 2.5 g RMS acceleration | 8 | Lens mounting detachment creating 0.5 mm focal plane displacement | Epoxy adhesive with 25 MPa tensile strength and -40°C to 150°C operational temperature range |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Sensor Head](https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/sensor-head.md) `(Standalone System)`
- [Signal Processor](https://cnfx.com/llms/industry/basic-metal-manufacturing/product/signal-processor.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Web Guiding System Controller**, **Material Tension Control System**, **Industrial Vision Inspection System**  
**Downstream Applications**: Precision Rolled Metal Sheets, Laminated Composite Materials, Printed Packaging Films  

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

### Q: What is the primary function of this sensor unit in web guiding systems?
**A**: This sensor unit continuously monitors material position and edge alignment in web guiding systems, providing real-time feedback to maintain precise alignment during manufacturing processes.

### Q: What materials are used in the construction of this sensor unit?
**A**: The sensor unit features an aluminum housing for durability, optical lenses for accurate detection, electronic circuit boards for signal processing, and stainless steel mounting brackets for secure installation.

### Q: How does this sensor unit integrate with existing machinery equipment?
**A**: The sensor unit connects via its interface component, mounts securely with stainless steel brackets, and processes signals through its dedicated processor to seamlessly integrate with web guiding control systems.

## 6. Manufacturing Compliance
- ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS
- IEC 60751:2008 INDUSTRIAL PLATINUM RESISTANCE THERMOMETERS AND PLATINUM TEMPERATURE SENSORS
- EN 60529:1991 DEGREES OF PROTECTION PROVIDED BY ENCLOSURES (IP CODE)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Sensor Unit](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/sensor-unit)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **4** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: SENSOR_UNIT | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: a3c6da9b
