---
title: "Transmitter Unit"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:TRANSMITTER_UNIT"
  data_integrity_hash: "3b7aaa2a817934b445d318fd63db7d86"
  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:TRANSMITTER_UNIT"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/transmitter-unit.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/transmitter-unit"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "850-950 nm wavelength, 0.5-30 m beam projection distance, 15-40° beam divergence angle"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 125
    unit: "°C"
    consequence: "Thermal degradation of GaAlAs semiconductor junctions at elevated temperatures reduces quantum efficiency and increases non-radiative recombination, causing permanent output power reduction"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Ambient temperature exceeding 60°C combined with continuous operation at maximum output power"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrated Peltier cooling with PID temperature control maintaining junction temperature at 85±5°C"
  - node_2:
      trigger: "Vibration amplitude exceeding 2.5 g at frequencies between 50-2000 Hz"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Kinematic lens mounting with viscoelastic damping material having loss factor η=0.3 at operating frequencies"
bom_nodes:
  led-array:
    type: "part"
    urn: "URN:CNFX:ME:LED_ARRAY"
    interface_type: "physical-logic-coupled"
  optical-lens-assembly:
    type: "part"
    urn: "URN:CNFX:ME:OPTICAL_LENS_ASSEMBLY"
    interface_type: "physical-logic-coupled"
  control-circuit-board:
    type: "part"
    urn: "URN:CNFX:ME:CONTROL_CIRCUIT_BOARD"
    interface_type: "physical-logic-coupled"
  housing:
    type: "component"
    urn: "URN:CNFX:ME:HOUSING"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
  - standard: "CE MARKING (EU DIRECTIVE 2014/35/EU LOW VOLTAGE DIRECTIVE)"
    scope: "Verified Engineering Specification"
  - standard: "IEC 60079-0:2017 EXPLOSIVE ATMOSPHERES"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/transmitter-unit.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "193305ce723dc39bda48e71b572baa5d9997072cc19716010b8186ee51ece3e7"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Transmitter Unit

## 1. Technical Definition
The transmitter unit is the emitting component of a safety light curtain system that projects infrared light beams to create a protective detection field.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **850-950 nm wavelength, 0.5-30 m beam projection distance, 15-40° beam divergence angle**. Failure boundary: **LED junction temperature exceeding 125°C, optical output power dropping below 0.5 mW, beam alignment deviation exceeding ±1.5°**, Mechanism: **Thermal degradation of GaAlAs semiconductor junctions at elevated temperatures reduces quantum efficiency and increases non-radiative recombination, causing permanent output power reduction**.

### 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 |
| :--- | :--- | :--- | :--- |
| Ambient temperature exceeding 60°C combined with continuous operation at maximum output power | 8 | LED thermal runaway leading to catastrophic junction failure and complete beam loss | Integrated Peltier cooling with PID temperature control maintaining junction temperature at 85±5°C |
| Vibration amplitude exceeding 2.5 g at frequencies between 50-2000 Hz | 8 | Lens mounting misalignment causing beam pattern distortion exceeding 15% deviation from nominal | Kinematic lens mounting with viscoelastic damping material having loss factor η=0.3 at operating frequencies |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [LED Array](https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/led-array.md) `(Standalone System)`
- [Optical Lens Assembly](https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/optical-lens-assembly.md) `(Standalone System)`
- [Control Circuit Board](https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/control-circuit-board.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Receiver Unit**, **Control System**, **Power Supply Unit**  
**Downstream Applications**: Safety Light Curtain System, Machine Guarding System, Automated Production Line  

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

### Q: What is the primary function of a transmitter unit in safety light curtains?
**A**: The transmitter unit projects infrared light beams to create a protective detection field that stops machinery when an object or person interrupts the beam, ensuring operator safety.

### Q: What materials are used in the construction of this transmitter unit?
**A**: It features an aluminum alloy housing for durability, polycarbonate optical windows for clarity and impact resistance, and a printed circuit board with electronic components for reliable operation.

### Q: How does the transmitter unit integrate with safety light curtain systems?
**A**: The transmitter works with a receiver unit to form a complete safety light curtain. When beams are interrupted, the system sends a stop signal to machinery controllers, preventing accidents in manufacturing environments.

## 6. Manufacturing Compliance
- ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS
- CE MARKING (EU DIRECTIVE 2014/35/EU LOW VOLTAGE DIRECTIVE)
- IEC 60079-0:2017 EXPLOSIVE ATMOSPHERES

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Transmitter Unit](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/transmitter-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**: TRANSMITTER_UNIT | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: a27fff19
