MEASUREMENT OF ELECTRICAL PROPERTIES OF ELASTOMERS

Overview of Measuring Elastomer Electrical Properties

Owing to their special qualities, elastomers are used extensively in a wide range of sectors, including electronics and the automobile. To guarantee their effectiveness and dependability in a variety of situations, it is essential to comprehend their electrical characteristics. We examine the techniques and tools used to measure the electrical properties of elastomers in this publication.

Methods of Measurement

• Volume Resistance and Volume Resistivity Measurement: This entails figuring out the bulk form of elastomer sheets' resistance and resistivity. Specimens that are at least 80×80×2 in size are measured using methods that adhere to DIN ISO IEC 60093 and ASTM D4496 standards.
• Measurement of Surface Resistance and Surface Resistivity: This method, which is similar to volume measurements, focuses on the electrical characteristics of the elastomer sheets' surface. It is essential for applications where surface interactions are important and aids in determining the material's surface conductivity.
• Measurement of Resistance on Test Sheets and Finished Parts: This is the process of assessing how resistant elastomer samples—including completed parts—are to certain circumstances, such immersion, deformation, or tension. These tests are essential for quality control because they reveal how the material behaves in real-world situations.

• Potential Difference measuring: Potential difference measuring, which complies with DIN 50918, DBL 5527, and other standards, aids in determining the electrical potential across elastomer surfaces. It facilitates comprehension of the material's reaction to potential gradients and electric fields.

• Measurement of Conductivity (Insulation Effect): In situations where electrical isolation is critical, evaluating an elastomer's insulation qualities is essential. According to DBL 5527, conductivity tests reveal information about a material's resistance to electrical currents.

   

Measurement Tools

• With a broad resistance measurement range of 1x10-5 Ohm to 1.6x1015 Ohm, the Milli-TO3 (Fischer Elektronik) is an instrument that may be used for both high and low resistance elastomer materials. The metering voltage (1-500V) may be adjusted, giving you freedom while conducting different kinds of tests.
• Fischer Elektronik's Measuring Probe FE50 is a specialist probe that is used in conjunction with the Milli-TO3 instrument to provide precise and accurate measurements, especially on elastomer surfaces and interfaces.
• Benning IT 101: This instrument is perfect for assessing the electrical characteristics of elastomers across a broad range of resistances and voltages. It has a resistance measurement range of 0-20GOhm and test voltages ranging from 50V to 1000V. Because of its adaptability, it may be used in a variety of testing situations.

In summary

Precise assessment of electrical characteristics is crucial for elastomer characterization and application appropriateness. Manufacturers are able to ensure that elastomeric materials operate well in a variety of situations by using the right tools and procedures that adhere to applicable requirements.