---
title: "Piezoelectric Actuator"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:PIEZOELECTRIC_ACTUATOR"
  data_integrity_hash: "4efe328a0c8661516104363c05a24eef"
  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:PIEZOELECTRIC_ACTUATOR"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/piezoelectric-actuator.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/piezoelectric-actuator"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-150 V DC, 0-100 μm displacement, -40°C to +85°C"
    unit: "μm/V"
engineering_limits:
  max_safe_operating_point:
    value: 200
    unit: "V"
    consequence: "Dielectric breakdown at 200 V due to electric field exceeding material's dielectric strength (15 kV/mm for PZT-5H), depolarization above Curie temperature (120°C for PZT-5H) destroying piezoelectric properties, mechanical fracture at 0.2% strain due to exceeding material's elastic limit"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Voltage exceeding 200 V DC"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Zener diode clamping at 180 V with 5% tolerance rating"
  - node_2:
      trigger: "Continuous operation at 100°C ambient temperature"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "PTC thermistor thermal cutoff at 85°C with 2°C hysteresis"
bom_nodes:
  piezoelectric-stack:
    type: "part"
    urn: "URN:CNFX:ME:PIEZOELECTRIC_STACK"
    interface_type: "physical-logic-coupled"
  electrodes:
    type: "component"
    urn: "URN:CNFX:ME:ELECTRODES"
    interface_type: "physical-logic-coupled"
  preload-spring:
    type: "component"
    urn: "URN:CNFX:ME:PRELOAD_SPRING"
    interface_type: "physical-logic-coupled"
  housing:
    type: "component"
    urn: "URN:CNFX:ME:HOUSING"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 22214:2021 - PIEZOELECTRIC ACTUATORS - TERMS AND DEFINITIONS"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/IEEE 176-1987 - STANDARD ON PIEZOELECTRICITY"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/piezoelectric-actuator.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "60fb03efa3e1cd721825b9d1efc5df77def51e585cc4a2d83a238edd3ae2cca1"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Piezoelectric Actuator

## 1. Technical Definition
A precision actuator that converts electrical energy into mechanical displacement using the piezoelectric effect.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-150 V DC, 0-100 μm displacement, -40°C to +85°C**. Failure boundary: **200 V dielectric breakdown voltage, 120°C Curie temperature, 0.2% strain limit**, Mechanism: **Dielectric breakdown at 200 V due to electric field exceeding material's dielectric strength (15 kV/mm for PZT-5H), depolarization above Curie temperature (120°C for PZT-5H) destroying piezoelectric properties, mechanical fracture at 0.2% strain due to exceeding material's elastic limit**.

### 2.1 Analytical Physics Model
Governed by the **Harmonic Vibration Force Generation**:

> **Primary Equation**: $F_e = m \cdot r \cdot \omega^2 \sin(\omega t)$  
> **Engineering Impact**: Calculates centrifugal force for vibratory sifters/feeders.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| m | Eccentric Mass | Engineering Constant |
| r | Radius | Engineering Constant |
| \omega | Angular Frequency | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Voltage exceeding 200 V DC | 8 | Dielectric breakdown causing permanent electrical short circuit | Zener diode clamping at 180 V with 5% tolerance rating |
| Continuous operation at 100°C ambient temperature | 8 | Thermal depolarization reducing displacement by 90% | PTC thermistor thermal cutoff at 85°C with 2°C hysteresis |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Piezoelectric Stack](https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/piezoelectric-stack.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **High-Voltage Power Supply**, **Precision Motion Controller**, **Vibration Isolation Table**  
**Downstream Applications**: Optical Positioning Systems, Microfluidic Pumps, Precision Valves  

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

### Q: What is the primary material used in this piezoelectric actuator?
**A**: The actuator uses Lead Zirconate Titanate (PZT) ceramic, known for its excellent piezoelectric properties and stability in industrial applications.

### Q: What are the key components in the Bill of Materials (BOM)?
**A**: The BOM includes electrodes, housing, piezoelectric stack, and preload spring, ensuring reliable performance and structural integrity.

### Q: How does this actuator benefit machinery manufacturing applications?
**A**: It provides precise mechanical displacement with fast response times, ideal for automation, positioning systems, and vibration control in industrial equipment.

## 6. Manufacturing Compliance
- ISO 22214:2021 - PIEZOELECTRIC ACTUATORS - TERMS AND DEFINITIONS
- ANSI/IEEE 176-1987 - STANDARD ON PIEZOELECTRICITY

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Piezoelectric Actuator](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/piezoelectric-actuator)**

### 🌐 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**: PIEZOELECTRIC_ACTUATOR | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: fb181a25
