Structured Manufacturing Data (2026)

Infrared Sensor

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Infrared Sensor used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Infrared Sensor is characterized by the integration of Infrared Detector Element and Optical Filter. In industrial production environments, manufacturers listed on CNFX commonly emphasize Semiconductor Silicon construction to support stable, high-cycle operation across diverse manufacturing scenarios.

An electronic device that detects infrared radiation emitted by objects and converts it into an electrical signal for measurement or detection purposes.

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Product Specifications

Technical details and manufacturing context for Infrared Sensor

Definition
An infrared sensor is an electronic device that detects and measures infrared radiation in the electromagnetic spectrum, typically in wavelengths from 700 nanometers to 1 millimeter. These sensors operate by converting infrared energy into an electrical signal that can be processed and analyzed. They are widely used for non-contact temperature measurement, motion detection, gas analysis, and various industrial automation applications where thermal detection is required without physical contact with the target object.
Working Principle
Infrared sensors operate based on the principle that all objects with a temperature above absolute zero emit infrared radiation. The sensor contains a photodetector (such as a thermopile, pyroelectric sensor, or photodiode) that absorbs infrared radiation and converts it into an electrical signal. This signal is then amplified and processed by electronic circuitry to provide measurable output. Different types of infrared sensors use various detection methods including thermal detection (measuring temperature changes in the detector material) and photon detection (measuring photon-induced electron transitions in semiconductor materials).
Common Materials
Semiconductor Silicon, Germanium, Thermopile Materials, Pyroelectric Crystals
Technical Parameters
  • Spectral response range indicating the wavelengths of infrared radiation the sensor can detect (μm) Customizable
Components / BOM
  • Infrared Detector Element Part
    Converts incoming infrared radiation into an electrical signal through thermal or photonic effects
    Material: Semiconductor material (Silicon, Germanium) or pyroelectric crystal
  • Optical Filter
    Selectively transmits specific infrared wavelengths while blocking unwanted radiation
    Material: Infrared-transparent materials with dielectric coatings
  • Signal Amplifier
    Amplifies the weak electrical signal from the detector for further processing
    Material: Semiconductor integrated circuit components
  • Housing Part
    Protects internal components from environmental factors and provides mounting interface
    Material: Metal or plastic enclosure with infrared-transparent window
  • Temperature Compensation Circuit
    Compensates for temperature-induced variations in sensor performance
    Material: Semiconductor components and temperature sensors

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Infrared Sensor.

IR Sensor Infrared Detector Thermal Sensor Pyroelectric Sensor Passive Infrared Sensor industrial infrared sensor for temperature measurement fast response pyroelectric infrared detector wide spectral range IR sensor for optical systems temperature compensated infrared detection module high sensitivity thermopile sensor for electro

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0.8 to 1.2 atm (standard atmospheric range)
other spec: Detection range: 0.1m to 30m, Response time: <100ms, Wavelength: 700nm to 1400nm
temperature: -40°C to +85°C (operating), -55°C to +100°C (storage)
Media Compatibility
✓ Non-contact temperature measurement in HVAC systems ✓ Motion detection in security applications ✓ Level sensing in dry bulk material handling
Unsuitable: Direct immersion in liquids or exposure to condensing humidity without protective housing
Sizing Data Required
  • Required detection distance (m)
  • Target object size and emissivity
  • Environmental conditions (ambient temperature, presence of interfering IR sources)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Lens Contamination
Cause: Accumulation of dust, dirt, oil, or moisture on the infrared lens or protective window, obstructing infrared radiation transmission and causing inaccurate readings or signal loss.
Electronic Drift/Calibration Loss
Cause: Aging of internal electronic components (e.g., detectors, amplifiers), temperature-induced drift, or exposure to environmental extremes, leading to gradual deviation from calibrated accuracy.
Maintenance Indicators
  • Erratic or unstable readings on the display or output signal, indicating potential contamination or electronic failure.
  • Visible condensation, fogging, or physical damage (cracks, scratches) on the sensor lens or housing.
Engineering Tips
  • Implement regular lens cleaning with appropriate solvents and soft materials, and use protective air purges or enclosures in dirty or humid environments.
  • Schedule periodic calibration checks against known standards and ensure stable, clean power supply to minimize electrical stress on components.

Compliance & Manufacturing Standards

Reference Standards
ISO 13849-1: Safety of machinery - Safety-related parts of control systems IEC 60947-5-2: Low-voltage switchgear and controlgear - Control circuit devices and switching elements - Proximity sensors EN 60947-5-2: European standard for proximity sensors (equivalent to IEC 60947-5-2)
Manufacturing Precision
  • Sensing distance tolerance: +/-10% of nominal range
  • Response time: +/-1 ms for high-speed models
Quality Inspection
  • Environmental testing (IP rating validation for dust/water resistance)
  • Electrical performance verification (output signal accuracy under varying conditions)

Factories Producing Infrared Sensor

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

Supply Chain Commonly Integrated Components

Signal Processor

Electronic device that conditions, amplifies, filters, and converts raw sensor signals into standardized outputs for temperature measurement systems

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Optical Spectrometer

An analytical instrument that measures the intensity of light as a function of wavelength to determine the elemental composition of materials.

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Stereo Camera Array

A multi-camera system that captures synchronized images from multiple perspectives to enable 3D depth perception and pattern recognition.

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Structured Light Projector

Optical device that projects precisely controlled light patterns onto surfaces for 3D scanning applications

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Frequently Asked Questions

What is the typical field of view for this infrared sensor?

The field of view varies by model but typically ranges from 15 to 90 degrees, with specific configurations available for different detection requirements in computer and optical applications.

How does the temperature compensation circuit improve sensor performance?

The temperature compensation circuit maintains consistent sensitivity across the operating temperature range by adjusting for thermal drift, ensuring accurate measurements in varying environmental conditions common in industrial settings.

What materials are used in the infrared detector element and why?

The detector uses semiconductor silicon, germanium, thermopile materials, or pyroelectric crystals depending on the application. These materials are chosen for their specific infrared absorption properties, response characteristics, and suitability for different spectral ranges in electronic and optical systems.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Computer, Electronic and Optical Product Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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