The following studies can be carried out with the set-up: 

1. Study of Dielectric Constant in Solids

Experiment

Dielectric Constant in Solids

Probes Arrangement

It has two individually spring loaded probes. The probes arrangement is mounted in a suitable stand, which also holds the sample plate. To ensure the correct measurement of sample temperature, the RTD is embedded in the sample plate just below the sample. This stand also serves as the lid of temperature controlled oven. Proper leads are provided for connection to Capacitance Meter and Temperature Controller.

Sample

Barium Titanate (BaTiO3)

Oven

This is a high quality temperature controlled oven. The oven has been designed for fast heating and cooling rates, which enhances the effectiveness of the controller.

Main Units

The Set-up consists of two units housed in the same cabinet.

a) Oven Controller

Platinum RTD (A class) has been used for sensing the temperature. A Wheatstone bridge and an instrumentation amplifier are used for signal conditioning. Feedback circuit ensures offset and linearity trimming and a fast accurate control of the oven temperature.

Temperature Range   Ambient to 473K

Resolution   1K

Stability   0.5K

Measurement Accuracy   1K (typical)

Oven   Specially designed for Dielectric measurement

Sensor   RTD (A class)

Display   3½ digit, 7 segment LED with autopolarity and decimal indication

Power   150W

b) Specifications of the Oven

c) Digital Capacitance Meter

This a compact direct reading instrument for the measurement of capacitance of the sample.

d) Specifications of the Oven