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Capacitive displacement sensors and systems // capaNCDT

Capacitive displacement sensors and systems // capaNCDT
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Capacitive displacement sensors and systems // capaNCDT

Product catalog summary
Introduction
Micro-Epsilon's capacitive sensors are designed for non-contact measurement tasks such as displacement, distance, position, and thickness. Known for high signal stability and excellent resolution, they are suitable for industrial applications, including machine control and process monitoring, as well as controlled environments like laboratories and cleanrooms.
Specifications and Features
The sensors offer precise, stable measurements with excellent temperature stability and immunity to magnetic interference. Available in various designs and sizes, they integrate easily into machines and systems. The capaNCDT series includes models like 6100, 6200, and 6500, each with different channel capacities and resolutions.
Applications
These sensors are used in industries such as semiconductor, electronics, wind power, and battery film thickness monitoring. They are ideal for high-precision measurements in both industrial and clean environments.
Technology and Design
Operating on the principle of the ideal plate capacitor, these sensors allow for wear-free, non-contact measurement suitable for both conductive and non-conductive objects. The triaxial sensor design ensures precision and stability in challenging environments.
Controller and Integration
The capaNCDT controllers support modular systems with up to 8 channels, offering easy operation via a web interface and multiple integration interfaces. They are designed for easy installation and secure mounting, with options for linearity calibration.
Materials and Environment
Constructed from materials suitable for various environments, including cleanrooms and vacuums, these sensors are robust and temperature-resistant, operating in conditions from -270 to +800 °C.
Customization and OEM Solutions
Micro-Epsilon offers customization options for sensors and controllers, including adapted designs and modified measuring ranges, with OEM solutions available for specific applications.
Conclusion
Micro-Epsilon's capacitive sensors provide unmatched precision and stability for a wide range of industrial and high-tech applications, making them a leading choice for precise measurement tasks.
Overview
This document details technical specifications and best practices for using Micro-Epsilon's capacitive displacement sensors, specifically the capaNCDT series, in applications like lens alignment and 3D printing.
Specifications
The document outlines different models, including the capaNCDT 6500, 6200, and 6100, each with specific applications and measurement capabilities, achieving nanometer accuracy.
Applications
  • Lens Alignment: Used for precise lens positioning in optical systems.
  • 3D Printing: Monitors powder bed height for uniform layer application.
Best Practices
  • Measurement Spot: Critical for accurate readings; requires minimum target size or special calibration.
  • Measuring Range and Sensor Size: Larger ranges require larger sensor housings.
  • Linearity and Resolution: Optimized through factory calibration.
Mounting and Temperature Stability
Sensors are mounted using various methods to ensure temperature stability and precision, with recommended positions for optimal performance.
Flexibility and Versatility
Measuring ranges can be adjusted through factory calibration, and sensors are compatible with various housing materials for diverse environments.
Technical Data
Specifications include measuring range, resolution, linearity, temperature stability, and recommended target sizes, with details on sensor dimensions and mounting options.
Technical Specifications
1. Vibration and Shock Resistance: Complies with DIN EN standards, withstanding 20 g vibration and 30 g shock.
2. Protection Class: IP40.
3. Material: Includes NiFe and stainless steel.
4. Weight: Varies by sensor type.
Mounting and Compatibility
1. Mounting: Point or circumferential clamping.
2. Compatibility: Compatible with all Micro-Epsilon capacitive controllers.
Measurement and Performance
1. Measuring Range: Varies by model.
2. Resolution: Static resolutions as low as 0.06 nm.
3. Linearity and Accuracy: Detailed adjustments required.
4. Temperature Stability: Specific values for different mounting positions.
Environmental Conditions
1. Temperature Range: Operational up to +800 °C.
2. Material and Construction: Includes Inconel Alloy 625 for high temperatures.
Additional Features
1. Dimensions: Detailed for each sensor type.
2. Special Features: Integrated cables and mounting recommendations.
Sensors for Challenging Environments
1. CSH/SE Cylindrical Sensors: Designed for vacuum, cleanroom, and magnetic fields, with measuring ranges from 0.125 mm to 4 mm.
2. CSH/FL/SE Flat Sensors: Suitable for similar environments, with measuring ranges from 0.125 mm to 10 mm.
3. Capacitive Controllers: Support up to 8 channels, with integration options.
4. Compact Capacitive Measuring System (capaNCDT 6100): High resolution and accuracy for industrial use.
5. Pin Assignments and Connections: Details for various models, ensuring compatibility.
Overview
Details on capaNCDT 6200 and 6500 series, designed for precision measurements with modular scalability.
Specifications
  • 6200 supports up to 4 channels, 6500 up to 8 channels.
  • High resolution and precision, with various digital interfaces.
Procedures and Configuration
  • Configured via web interface, supporting synchronization.
  • Pin assignments detailed for setup.
Performance and Stability
  • High frequency response and measuring rates.
  • Temperature stability maintained at <200 ppm FSO/K.
Environmental and Physical Characteristics
  • Designed to withstand shocks and vibrations.
  • Operating temperature ranges specified.
Recommendations
  • DT6228/DT6238 models for high-temperature applications.
  • capaNCDT 6500 series for subnanometer resolution.
Specifications
1. Cable Types: CCM and CCg/PT cables with specific bending radii.
2. Connectors: Various types available.
3. Signal Cables: Multiple options for different models.
Procedures
1. Mounting Accessories: Includes frames and air purge collars.
2. Vacuum Feedthroughs: Available in various versions.
Standards and Recommendations
1. Conductivity Requirements: Capacitive part of impedance should be larger than ohmic part.
2. Measurement on Narrow Targets: Specific positioning required.
Technical Details
1. Measurement Systems: CombiSENSOR systems for thickness measurement.
2. Active Measuring System: capaNCDT 61x4 for long signal transmission paths.
Key Data from Tables and Graphs
1. Signal Deviation: Impact of target width and geometry.
2. Angle Dependence: Effect of tilt angles on accuracy.
Critical Information
1. Minimum Diameter: Should match sensor diameter for accuracy.
2. Temperature Stability: Crucial for maintaining accuracy.
Overview
Information on various capacitive measuring systems by Micro-Epsilon, focusing on applications, specifications, and operational features.
1. capaNCDT TFG6220 - Thin Film Measurement:
  • Measures thickness of conductive films with high precision.
  • Includes vacuum device and capacitive sensors.
2. capaNCDT CST6110 - Rotation Speed Measurement:
  • Non-contact measurement of rotation speed.
  • Suitable for environments with electromagnetic interference.
3. capaNCDT MD6-22 - Mobile Gap Measurement:
  • Handheld device for mobile gap and distance measurements.
  • High accuracy and intuitive operation.
4. capaNCDT DTV - Brake Disc Thickness Measurement:
  • Non-contact measurement of brake disc thickness.
  • Suitable for test benches and road tests.
5. capaNCDT 62x9 - OEM Displacement Measurement:
  • Compact, multi-channel system for OEM applications.
  • Supports up to 8 measuring channels.
Conclusion
Micro-Epsilon offers a range of capacitive measuring systems tailored for various industrial applications, emphasizing precision, ease of use, and adaptability to challenging environments.
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Catalog excerpts

Capacitive displacement sensors and systems // capaNCDT-1

More Precision capaNCDT // Capacitive sensors for displacement, distance & gap

 Open the catalog to page 1
Capacitive displacement sensors and systems // capaNCDT-2

■ High-precision sensors for industry and high-tech Capacitive sensors for industrial applications Capacitive sensors are designed for non-contact measurement of displacement, distance, position and thickness. Their high signal stability and excellent resolution impress in numerous industries. These versatile and robust sensors offer an optimal solution for industrial measurement tasks from machine control to process monitoring. Capacitive sensors from Micro-Epsilon are ideal for nanometer measurements in controlled environments, e.g., laboratories, cleanrooms, vacuum chambers and clean production...

 Open the catalog to page 2
Capacitive displacement sensors and systems // capaNCDT-3

from page 4 Measuring principle and applications Product portfolio and advantages Capacitive system design Capacitive sensors for OEM Application examples Sensors Cylindrical standard sensors (socket) Measuring ranges: 0.05 mm to 10 mm Cylindrical sensors in very compact design (socket) Measuring ranges: 0.1 mm to 3 mm Cylindrical sensors with thread (socket) Measuring ranges: 0.5 mm to 3 mm High-precision cylindrical sensors (integrated cable) Measuring ranges: 0.2 mm to 2 mm Flat sensors (integrated cable) Measuring ranges: 0.2 mm to 3 mm Gap sensors (integrated cable & socket) Measuring ranges:...

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Capacitive displacement sensors and systems // capaNCDT-4

■ More precision - Capacitive sensors from Micro-Epsilon Advantages of the measuring principle ■ Wear-free and non-contact measurement ■ Distance and thickness measurements on conductive and non-conductive objects ■ Unmatched accuracy and stability ■ High frequency response for fast measurements ■ Ideal for industrial environments with high and low temperatures, magnetic fields and vacuum Low-noise technology for maximum precision The capaNCDT sensors are based on the principle of the ideal plate capacitor. Two plate electrodes are represented by the sensor and the measuring object. If a constant...

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Capacitive displacement sensors and systems // capaNCDT-5

Wide range of applications Measurement of distance, thickness and gaps with highest precision Distance measurement on electrically conductive objects Thickness measurement of electrically conductive materials Measurement of the gap between electrically conductive surfaces The capaNCDT system measures To measure the thickness of electrically conductive materials, two sensors are distance between two electrically capacitor, which varies proportionally with mounted on opposite sides. Each sensor conductive materials. The sensor measures the distance to the surface of measures the distance from one...

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Capacitive displacement sensors and systems // capaNCDT-6

■ Extensive variety. Advanced technology. Globally leading. ■ Easy operation via powerful web interface with calculation functions ■ Modular systems with 1 to 8 channels ■ Supports synchronization and calculation ■ Non-contact grounding of the target object possible Controller capaNCDT 6100 Compact single-channel system capaNCDT 6200 Modular multi-channel system capaNCDT 6500 Multi-channel system for highest resolution Coating thickness measurement of films and batteries Active sensors for drag chains and long paths Testing system for film thickness

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Capacitive displacement sensors and systems // capaNCDT-7

■ Sensors, cables and controllers are compatible with each other ■ Sensor replacement without re-calibration ■ Optional linearity calibration (LC) for even greater precision ■ Particle-free, low-outgassing materials for cleanroom and vacuum applications ■ Non-magnetic materials such as titanium and stainless steel for environments with strong magnetic fields ■ Robust, temperature-resistant materials: mechanically stable for use at high and low temperatures ■ Max. cable length: 40 m Standard 1.4 m / 2.8 m - Crush-resistant with protective metal tubing - Models for drag chain ■ Cables for vacuum...

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Capacitive displacement sensors and systems // capaNCDT-8

■ More precision and stability 0 Maximum signal stability Triaxial sensor design with active sensor cable 0 Unmatched precision Nanometer precision with subnanometer resolution capaNCDT sensor Common capacitive sensor with triaxial design (coaxial) ■ Triaxial sensor design: measurement electrode, guard ring electrode and grounding ■ Guard ring electrode ensures a homogeneous measuring field for precise measurements with highest signal stability ■ Particularly low noise: electrically shielded sensor cable ■ Highly precise - even when multiple sensors are arranged very close together ■ Sensors...

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Capacitive displacement sensors and systems // capaNCDT-9

Takes up very little space at the measuring point Passive and highly particle-free sensors ■ No offset, measuring range starts directly at the sensor ■ Integration in confined installation spaces with minimum effort ■ Smallest diameters available with cylindrical sensors ■ Extremely flat sensors available ■ No interactions between the sensor and the environment (e.g., force or heat transfer) ■ Particle-free sensors and clean-room cables ■ Special sensor design prevents virtual leaks ■ Low-outgassing sensors (residual-gas analysis) ■ Large selection of vacuum-compatible sensors, cables and feedthroughs...

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Capacitive displacement sensors and systems // capaNCDT-10

■ Flexible solutions from standard to OEM ■ Sensor with socket/sensor with integrated cable Controller (consisting of oscillator, microcontroller and demodulator) ■ Preamplifier, e.g. for long cable routes Vacuum feedthrough Power supply cable Controller External preamplifier External preamplifier standard measurements measurements The full compatibility of all system components enables numerous combinations: 10

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Capacitive displacement sensors and systems // capaNCDT-11

Specific sensors for OEM When standard solutions reach their limits, we tailor our sensors and controllers to your specific requirements. Frequently asked modifications include: Adapted design Target-specific adaptation Mounting options Individual cable lengths Modified measuring ranges Sensors with pre-installed controller Output types and interfaces OEM controller for customer-specific rack Measuring device to check the inner diameter of extruder bore holes (2 sensors in one axis) Customer-specific sensor design (clamp fastening) Dual sensor with 2 capacitive sensors in one housing Customer-specific...

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Capacitive displacement sensors and systems // capaNCDT-12

Application examples capaNCDT Wafer stage positioning Capacitive sensors measure the position of the stage at various points, which is required in particular for fine alignment. Thanks to their triaxial design, the sensors are insensitive to electromagnetic fields and achieve a resolution in the nanometer range. They also achieve extremely high long-term stability. The sensors are designed for vacuum applications and can be used up to ultra-high vacuum. Measuring system: capaNCDT 6200 with CSH/SE-sensors Air gap in generators and electric motors Capacitive sensors measure the air gap between...

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