pushrod displacement detector
Change of a sample after heated is passed through a quartz glass detector to a differential transformer, and then a sensor inside the transformer moves to show output fluctuation, which is calculated as expansion / contraction of the sample.
expansion rate
| temperature range | atmosphere | sample size, shape |
|---|---|---|
| room temperature〜1000℃ | innert gas | φ3～10㎜× length 10〜50㎜ *Consult us about shape. |
suitable for this measurement：Thermodilatometer DLY-9000 series
laser interferometry
A method to quantify thermal expansion by measuring expansion change of a sample caused by temperature change, which is regarded as amount of stripe’s movement by two beam interference. (double optical path Michelson interferometer)
expansion rate (fixed sample)
| temperature range | atmosphere | sample size, shape |
|---|---|---|
| -150〜200℃ | low pressure helium gastd | φ6㎜× length 12㎜ (bullet-shape) |
| room temperature〜700℃ | vacuum |
expansion rate (film sample)
| temperature range | atmosphere | sample size, shape |
|---|---|---|
| -150〜200℃ | low pressure helium gas | φ or square 7㎜ thickness 50μm〜1㎜ |
| room temperature〜700℃ | vacuum |
expansion rate (precision measurement)
| temperature range | atmosphere | sample size, shape |
|---|---|---|
| 0〜200℃ Cyclic | low pressure helium gas | – |
suitable for this measurement：Thermal Expansion Measurement System by Laser Interferometer LIX-2 series
expansion rate (precision measurement)
| temperature range | atmosphere | sample size, shape |
|---|---|---|
| standard type 0～50℃ (highly precise isothermal circulation system adopted) |
low-pressure helium | φ5 or □5±0.5mm x length 12～20mm Both ends of a sample(length direction) are spherical surface. (Processing of spherical surface can be available at an extra cost.) |
suitable for this measurement：Ultra High Precision Thermal Expansion Measurement System by Laser Interferomenter SuperLIX
