Impedance Interface

The 1294 is an accurate and sensitive impedance interface which is designed to operate together with an frequency response analyzer for two- or four-terminal impedance analysis of a wide range of materials. Four terminal analysis allows the separation of the current stimulus and voltage sense electrodes, which is important in applications where the impedance of the connection cables and electrodes is significant in comparison with the impedance of the sample itself.

The interface makes use of various measurement techniques including balanced generator, high impedance voltage sense inputs, and driven shield cables, in order to achieve maximum accuracy four-terminal measurements. Specific examples of materials which benefit from four-terminal analysis include cement pastes, bio-materials, and solid electrolytes. In addition, the equipment can be integrated with temperature controllers and cryostats in order to test materials under a wide range of temperature conditions.

Solartron Instruments, 964 Marcon Boulevard, Suite 200, Allentown, PA 18103. Tel: 800-225-5766; Fax: 610-264-5329.