Low- Cost Dilatometer L76/1000B
Linseis now offers a low cost single sample Dilatometer. The L76/1000B can
be used for basic expansion or shrinkage measurements from RT up to 1000°C.
We are able to lower the cost on this unit by using universal components and
eliminating the vacuumatmosphere control option. The unit will measure
expansion/or shrinkage from room temperature to 1000oC in standard air.
The evaluation of data includes CTE, % expansion or shrinkage, absolute
expansion or shrinkage,more.
The sensor employed is an LVDT （linear variable differential transformer） which
is very precise. This LVDT has theoretically an indefinite resolution. For this
application the resolution is 14nm （nanometer）. This is the same dimension as
the wavelength of light.
This type of standard dilatometer is often used for quality control measurements
in the glass or ceramic industry that normally are made inert gas flows or vacuum.
There are several advantages of the new low cost design. We have eliminated the
need for water cooling on the furnace; also there is no need for a water circulating
bath to maintain a constant temperature on the measuring head. The sensor module
or measuring head is equipped with a sensor electronically regulatesmaintains
measuring head temperature slightly above room temperature.
Another very useful feature is the automatic zero setting of the LVDT sensor.
This option eliminatesmicrometer screws to adjust the LVDT zero position.
The LVDT is positioned using an internal motor controlled via the software.
Different sample lengths are automatically adjustcan vary from nearly 0 to 50
millimeters in length.
Picture: L76/1000B Dilatometer

陶瓷工业