Editorial Technical Reference

Optical Sensor Array / Electronic Distance Measurement (EDM) Unit

This page explains how Optical Sensor Array / Electronic Distance Measurement (EDM) Unit is classified within Computer, Electronic and Optical Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A precision measurement component that combines optical sensing and electronic distance measurement technologies to verify the isocenter position in radiation therapy systems.

View Full Specifications Explore Manufacturing Sources
Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Optical Sensor Array / Electronic Distance Measurement (EDM) Unit

Definition
This unit serves as the core measurement component within an Isocenter Verification System, specifically designed for medical linear accelerators and radiation therapy equipment. It integrates an array of optical sensors with electronic distance measurement (EDM) capabilities to precisely determine the spatial position of the radiation beam's isocenter - the critical point where all treatment beams converge. The system ensures accurate patient positioning and treatment delivery by continuously monitoring and verifying the mechanical and radiation isocenter alignment.

The optical sensor array detects reference markers or fiducials using infrared or visible light, while the EDM subsystem employs phase-shift or time-of-flight measurement principles to calculate precise distances. Data from both subsystems are processed through triangulation algorithms to determine three-dimensional coordinates relative to the treatment machine's coordinate system.

Typical specifications include a measurement range of 0.5 to 50 meters, accuracy of ±0.1 mm, resolution of 0.01 mm, and sampling rates from 100 to 1000 Hz. Operating temperature ranges from 10 to 40 °C, storage from -20 to 60 °C, and relative humidity from 10 to 90% (non-condensing). The unit offers ingress protection ratings of IP54 to IP65 per IEC 60529, operates on 24 V DC (±10%) with power consumption between 5 and 15 W, and provides an RS-485 output interface. Weight varies from 1.5 to 3.0 kg depending on configuration and housing.

Materials include optical-grade glass, semiconductor sensors, aluminum alloy housing, and precision ceramics. These values are reference ranges; model-specific specifications must be confirmed with the legal manufacturer or supplier. The unit is intended for integration into radiation therapy systems and is not a standalone consumer product. Always verify compliance with applicable standards and clinical requirements before use.
Working Principle
The optical sensor array emits or detects infrared or visible light to identify reference markers or fiducials placed at known positions. Simultaneously, the EDM subsystem measures distances using phase-shift or time-of-flight methods. The combined data from both subsystems are processed via triangulation algorithms to compute the three-dimensional coordinates of the isocenter relative to the treatment machine's coordinate system. This allows continuous monitoring and verification of isocenter alignment, ensuring accurate patient positioning and treatment delivery.
Common Materials
Optical-grade glass, Semiconductor sensors, Aluminum alloy housing, Precision ceramics
Technical Parameters
ParameterTypical rangeNotes & selection driver
Measurement Range0.5–50 mTypical operating range for isocenter verification
Measurement Accuracy±0.1 mmCritical for precise isocenter alignment
Resolution0.01 mmHigh resolution for fine adjustments
Sampling Rate100–1000 HzAdjustable for dynamic measurements
Operating Temperature10–40 °COutside range may affect accuracy
Storage Temperature-20–60 °CNon-condensing environment required
Relative Humidity10–90 %Non-condensing; condensation may damage optics
Ingress ProtectionIP54–IP65Dust and water resistance for clinical environmentsIEC 60529
Supply Voltage24 ±10% V DCStable power required for consistent performance
Power Consumption5–15 WLow power for heat management
Output InterfaceRS-485Industrial standard for reliable data transfer
Weight1.5–3.0 kgDepends on configuration and housing

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Optical Sensor Array
    Detects and tracks reference markers using infrared or visible light sensors arranged in a specific geometric pattern
    Material: Semiconductor sensors, optical filters
  • EDM Transceiver
    Emits and receives modulated light signals to measure distances using phase-shift or time-of-flight principles
    Material: Laser diode, photodetector, precision optics
  • Signal Processing Unit
    Processes raw sensor data and calculates precise coordinates through triangulation algorithms
    Material: Printed circuit board, microprocessor, memory chips
  • Calibration Target
    Provides known reference points for system calibration and accuracy verification
    Material: Precision-machined steel, reflective coatings

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Optical Sensor Array / Electronic Distance Measurement (EDM) Unit.

electronic distance measurement unit

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Isocenter Verification System
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric pressure only (non-pressurized environment)
other spec: Humidity: 30% to 70% non-condensing, Vibration: <0.5g RMS, EMI/RFI: Must meet medical device standards IEC 60601-1-2
temperature: 10°C to 40°C (operating), 0°C to 50°C (storage)
Media Compatibility
✓ Medical-grade air environments ✓ Cleanroom atmospheres (ISO Class 5 or better) ✓ Radiation therapy treatment rooms with controlled environments
Unsuitable: High particulate environments (e.g., industrial manufacturing floors, construction sites) due to optical contamination risk
Sizing Data Required
  • Required measurement accuracy (typically ±0.1mm to ±1.0mm)
  • Working distance range (typically 0.5m to 5m)
  • Integration interface requirements (e.g., Ethernet, RS-485, analog outputs)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Optical Lens Contamination
Cause: Accumulation of dust, moisture, or industrial particulates on optical surfaces, degrading signal transmission and measurement accuracy.
Electronic Component Degradation
Cause: Thermal cycling, vibration, or electrical overstress leading to solder joint fatigue, capacitor failure, or signal drift in precision circuits.
Maintenance Indicators
  • Inconsistent or erratic distance readings despite stable environmental conditions
  • Visible condensation, fogging, or particulate buildup on optical windows or lenses
Engineering Tips
  • Implement regular optical cleaning with approved, non-abrasive materials and maintain controlled environments to minimize contamination ingress
  • Establish vibration isolation mounting and thermal management protocols to protect sensitive electronic components from mechanical and thermal stress

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 17123-9:2018 Optics and optical instruments - Field procedures for testing geodetic and surveying instruments - Part 9: Terrestrial laser scanners ANSI/ASME B89.1.7M:2001 Measurement of Calibrated Line Scales DIN 18723-6:1990 Engineering surveying instruments; testing of accuracy; electro-optical distance meters

Quoted from the published standard.

Manufacturing Precision
  • Distance measurement accuracy: ±(1 mm + 1.5 ppm)
  • Angular measurement accuracy: ±1 arcsecond
Quality Inspection
  • Laser safety classification test (IEC 60825-1)
  • Environmental testing for temperature and humidity (IEC 60068-2 series)

Manufacturers of Optical Sensor Array / Electronic Distance Measurement (EDM) Unit

Manufacturer profiles associated with Optical Sensor Array / Electronic Distance Measurement (EDM) Unit.

Sourcing Optical Sensor Array / Electronic Distance Measurement (EDM) Unit from China?
Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.
Request manufacturers We manufacture this

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

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Supply Chain Compatible Machinery & Devices

Industrial Smart Camera Module

The Industrial Smart Camera Module is a compact, self-contained vision processing unit designed for integration into industrial machinery and production lines.

Explore Specs →
Surface Mount Resistor

Passive electronic component for current limiting and voltage division in circuits

Explore Specs →
Surface Mount Capacitor

A surface mount capacitor is a fundamental electronic component used for energy storage, filtering, coupling, and decoupling in electronic circuits.

Explore Specs →
Surface Mount Technology (SMT) Pick-and-Place Machine

Automated machine that precisely places electronic components onto printed circuit boards.

Explore Specs →

Frequently Asked Questions

What is the typical measurement range of this unit?

The typical measurement range is 0.5 to 50 meters, but this is a reference range. Confirm the exact range for your specific model with the manufacturer.

What accuracy can be expected?

The measurement accuracy is typically ±0.1 mm. However, this value may vary by model and application, so verify with the supplier.

What output interface does it use?

The unit typically provides an RS-485 output interface for data transfer. Check the product documentation for exact interface specifications.

What are the environmental operating limits?

Operating temperature is 10 to 40 °C, storage -20 to 60 °C, and relative humidity 10 to 90% non-condensing. Ingress protection is IP54 to IP65 per IEC 60529. Always confirm these limits for your specific unit.
Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

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.
Buyer enquiry

Request manufacturing insight for Optical Sensor Array / Electronic Distance Measurement (EDM) Unit

Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.

Where it goes
Straight to the CNFX editorial desk, and to the manufacturer if this product is linked to a claimed profile. Nothing is broadcast to a supplier list.
Your details stay here
We do not sell or rent enquiry data, and we do not add you to a mailing list. Used only to answer this request.
No commission, no middleman
CNFX is a directory. We take no cut of any order and never negotiate on a supplier's behalf.
What we don't claim
A listing is not an endorsement. Qualify every supplier and verify every figure yourself before ordering.

Your business information is used only to process this request.

Thank you! Your message has been sent. We'll respond within 1–3 business days.
Sorry, we couldn't send your message. Please try again, or email us at contact@cnfx.com.

Need to Manufacture Optical Sensor Array / Electronic Distance Measurement (EDM) Unit?

Compare manufacturer profiles with relevant product and process capability.

Create Manufacturer Profile Contact Us
Previous Product
XY Positioning Stage
Last Product
Get QuotesChat