---
title: "Sensor Element"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:SENSOR_ELEMENT"
  data_integrity_hash: "6a61917ce15b31191b6f842526732be7"
  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_ELEMENT"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/sensor-element.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/sensor-element"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.1-100 bar (10 kPa-10 MPa) at -40°C to 150°C"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 125
    unit: "bar"
    consequence: "Diaphragm yield stress exceeding 350 MPa (316L stainless steel) or piezoelectric crystal depolarization above Curie temperature (180°C for PZT-5A)"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Electrostatic discharge (ESD) exceeding 8 kV"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "TVS diode clamping at 5.5V with 1.5 pF parasitic capacitance"
  - node_2:
      trigger: "Corrosive fluid pH &lt;2.0 or &gt;12.0"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Diamond-like carbon (DLC) coating with 20 GPa hardness and &lt;0.1 μm/year erosion rate"
bom_nodes:
  sensing-surfaceprobe:
    type: "component"
    urn: "URN:CNFX:ME:SENSING_SURFACEPROBE"
    interface_type: "physical-logic-coupled"
  support-structurehousing:
    type: "component"
    urn: "URN:CNFX:ME:SUPPORT_STRUCTUREHOUSING"
    interface_type: "physical-logic-coupled"
  electrical-connectionsleads:
    type: "component"
    urn: "URN:CNFX:ME:ELECTRICAL_CONNECTIONSLEADS"
    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: "CE MARKING (EU DIRECTIVE 2014/35/EU LOW VOLTAGE DIRECTIVE)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/sensor-element.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "795685a4f578996373f2a5ce25c04d7bf2ab198404297e0a9fc6e050c7148893"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Sensor Element

## 1. Technical Definition
The core component of a flow meter/sensor that directly detects and converts flow characteristics into measurable signals.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.1-100 bar (10 kPa-10 MPa) at -40°C to 150°C**. Failure boundary: **125 bar (12.5 MPa) burst pressure or 180°C thermal limit**, Mechanism: **Diaphragm yield stress exceeding 350 MPa (316L stainless steel) or piezoelectric crystal depolarization above Curie temperature (180°C for PZT-5A)**.

### 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 (ESD) exceeding 8 kV | 8 | ASIC signal conditioning circuit latch-up | TVS diode clamping at 5.5V with 1.5 pF parasitic capacitance |
| Corrosive fluid pH &lt;2.0 or &gt;12.0 | 8 | Hastelloy C-276 diaphragm pitting corrosion at &gt;0.5 mm/year | Diamond-like carbon (DLC) coating with 20 GPa hardness and &lt;0.1 μm/year erosion rate |

## 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**: **Signal Conditioner/Amplifier**, **Calibration Test Rig**, **Clean Room Assembly Station**  
**Downstream Applications**: Industrial Flow Meters, Process Control Systems, Smart Water Meters  

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

### Q: What materials are available for the sensor element in flow meters?
**A**: Our sensor elements are manufactured using stainless steel, ceramic, platinum, silicon, or polymer materials, each selected for specific industrial applications and environmental conditions.

### Q: How does the sensor element convert flow characteristics into measurable signals?
**A**: The sensing surface/probe detects flow parameters (velocity, pressure, temperature), which are then converted into electrical signals via the element's internal components and transmitted through electrical connections/leads for processing.

### Q: What is included in the BOM for a typical sensor element assembly?
**A**: The bill of materials includes the sensing surface/probe for detection, support structure/housing for protection and mounting, and electrical connections/leads for signal transmission to monitoring systems.

## 6. Manufacturing Compliance
- ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS
- IEC 60751:2008 INDUSTRIAL PLATINUM RESISTANCE THERMOMETERS AND PLATINUM TEMPERATURE SENSORS
- CE MARKING (EU DIRECTIVE 2014/35/EU LOW VOLTAGE DIRECTIVE)

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

### 🌐 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**: SENSOR_ELEMENT | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: a7e87f81
