DIL L74 Optical Dilatometer

Optical Dilatometer with Camera


On point

The Optical Dilatometer DIL L74 OD was developed to meet the demanding applications of the glass, ceramics, metal and energy industry. A high resolution CCD camera enables a visual real time analysis of the sample expansion, either as single frame or as video sequences.

The big advantage of this method is that the sample is not burdened with any force. For soft samples or samples that melt during the measurement, this leads to a result, which is not distorted by the contact pressure.

Several correction and analysis features are incorporated into the LINSEIS Evaluation Software. The unique horizontal design enables most demanding applications.

The special solid-liquid adapter allows expansion / volume measurements of solids, liquids and solid – liquid phase transitions. There is also a special sample holder for measuring thin samples like rigid foils available, which avoids measurement errors due to pushrod forces like in a classical dilatometer.


  • Non contact Expansion measurement
  • High resolution CCD camera
  • Optical Fleximeter

Measurement principle

In an Optical Dilatometer the sample is compared with a reference during the measurement. The result is the difference between the two lines. The field of view has an area of 3.3 x 2.8 mm.

Optical dilatometer detection of sample and reference

Optical dilatometer detection of sample and reference


You are interested in a Optical Dilatometer?

You need more information?

Contact our application experts!


Send us your request >>


Dilatometer mit DSC Option

DSC – Differential Scanning Calorimeter Option for Optical Dilatometer

Modell DIL L74 OD
Optical measuring system: Optical dilatometer equipped with a high-resolution camera and fully automated focus
Temperature range: -100°C up to 500°C
RT up to 500/1000/1500/2000°C
Price range: $$$
Measuring system: optical non contact
Accuracy: up to 1 µm
Field of view: 3.3 x 2.8 mm
Atmosphere: oxidizing (optional: red., inert and vac.)
Vacuum: up to 10E-5mbar
Heating rate: 0.01 to 100°C/min (depends furnace)
Int. Standards: ASTM D1857, CEN/TR 15404,
BS 1016:Part 15, CEN/TS 15370-1, DIN 51730, IS 12891, ISO 540, NF M03-048
Interface: USB


All LINSEIS thermo analytical instruments are PC controlled. The individual software modules exclusively run under Microsoft® Windows® operating systems. The complete software consists of 3 modules: temperature control, data acquisition and data evaluation. The 32 bit software incorporates all essential features for measurement preparation, execution, and evaluation of a Dilatometer measurement. Thanks to our specialists and application experts, LINSEIS was able to develop comprehensive easy to understand user friendly application software.


Linseis LFA 500 Software

Gerneral features

  • Program capable of text editing
  • Data security in case of power failure
  • Thermocouple break protection
  • Repetition measurements with minimum parameter input
  • Evaluation of current measurement
  • Curve comparison up to 32 curves
  • Storage and export of evaluations
  • Export and import of data ASCII
  • Data export to MS Excel
  • Multi-methods analysis (DSC TG, TMA, DIL, etc.)
  • Zoom function
  • 1 and 2 derivation
  • Programmable gas control
  • Statistical evaluation package
  • Free scaling





Optical Dilatometer Product brochure (PDF)

Optical DIL Product
Brochure (PDF)


Linseis Dilatometer Software

DIL Special Software
Brochure (PDF)