OPT-DIL Optical Dilatometer | Non-Contact High-Precision Thermal Expansion Measurement System

Optical Dilatometer DIL L74｜Non-Contact High-Precision Thermal Expansion Measurement System

The Optical Dilatometer DIL L74 utilizes non-contact optical measurement technology and is especially suitable for materials sensitive to mechanical contact, such as glass, ceramics, and polymers. The system supports high-temperature, low-temperature, and multi-atmosphere environments, enabling the measurement of key thermal properties including the coefficient of thermal expansion (CTE), sintering behavior, deformation processes, and glass transition temperature.

By eliminating physical contact between the push rod and the sample, the non-contact design avoids measurement interference, making it ideal for brittle, soft, irregularly shaped, or molten samples that are difficult to analyze using conventional contact-type dilatometers.

Product Overview

The DIL L74 Optical Dilatometer is equipped with a high-resolution optical tracking system that directly observes sample boundary movement or volumetric changes while simultaneously recording images. This design is particularly suitable for material research and academic studies requiring detailed analysis of deformation, shrinkage, and sintering behavior.

Key Features

Non-contact measurement: Eliminates force-induced errors, ideal for fragile and soft materials.
High-temperature capability: Temperature range from -150°C to 2000°C, suitable for glass and ceramic research.
Multi-atmosphere operation: Compatible with inert, oxidizing, reducing, and vacuum environments.
Real-time image recording: Enables synchronized video and image capture of sample deformation, providing both data and visual insight.

Applications

Glass materials: Analysis of CTE, glass transition, softening point, and sintering behavior.
Ceramic materials: Observation of sintering curves, shrinkage, and deformation processes.
Polymers: Measurement of thermal expansion, deformation, and thermal stability.

Technical Specifications

Item	Specification
Temperature Range	-150°C to 2000°C
Measurement Method	Non-contact optical boundary tracking
Sample Types	Solids, melts, irregularly shaped samples
Atmosphere Control	Inert, oxidizing, reducing, vacuum
Imaging Function	Real-time video recording and image capture

Comparison: Optical Dilatometer vs. Contact-Type Dilatometer

Item	Optical Dilatometer	Contact-Type Dilatometer
Measurement Method	Non-contact optical tracking	Direct push-rod contact
Mechanical Load	No mechanical force applied	Mechanical load may affect fragile samples
Suitable Samples	Soft, brittle, irregular, molten samples	Stable, solid samples
Resolution	High, capable of detecting subtle boundary changes	Medium to high, depending on sensor design
Measurable Properties	Sintering, deformation, volume shrinkage, thermal expansion	CTE, glass transition, softening point
Real-Time Visualization	Image and video recording available	No visual recording