The DSL‑01 is a precision experimental setup designed to measure the dielectric constant (relative permittivity) and dielectric loss of both solid and liquid insulating materials. It is suitable for both research and educational laboratories.

The setup includes two configurations:

• Parallel plate capacitors for solid samples (pellet diameter up to 50 mm)

• Coaxial cylindrical capacitor arrangement for liquid dielectrics

The dielectric constant is calculated by comparing the measured capacitance with and without the dielectric material inserted between the plates. A digital capacitance meter, controlled via microcontroller, measures values with a resolution of 0.01 pF and accuracy better than ±1%. The instrument offers auto-zeroing, auto-ranging up to 50 µF, and features a user-friendly backlit LCD display with push-button interface.

A variety of test samples such as glass, Teflon, Bakelite, PZT, and carbon tetrachloride are included, allowing users to perform immediate practical verification and calibration. The liquid measurement assembly features rack and pinion movement for controlled immersion.

📊 Key Features

• Measures dielectric constant (εᵣ) of solids and liquids

• Capacitance range: 0 pF to 50 µF (auto-range)

• Resolution: 0.01 pF

• Accuracy: Better than ±1%

• Display: 16×2 backlit LCD with push-button zeroing

• Solid sample holders: 10 mm and 50 mm electrode plate configurations

• Liquid sample setup: Coaxial cylinder with adjustable height mechanism

• Includes standard test samples (e.g., Teflon, glass, Bakelite, carbon tetrachloride)

• Operates on 220 V AC, 50 Hz supply

Applications

• Determining relative permittivity of insulating materials

• Academic demonstrations of dielectric behavior

• Characterization of materials in physics, chemistry, and materials science labs

• Comparative study of polar vs non-polar dielectrics

• Dielectric constant testing for solids (pellets, slabs) and liquids (oils, solvents)