Related Definitions
- Damping Coefficient: An important index to measure the vibration damping performance of damping materials, and also the main basis for selecting damping materials in engineering.
- Loss Factor: The tangent of the phase difference angle between strain and stress in viscoelastic materials under alternating force fields, and also equal to the ratio of the material's loss modulus to storage modulus. Expressed as tanδ.
Testing Methods
- Thermomechanical analysis (for solids)
- Rotational rheometer (for fluids)
Instrument Technical Parameters
- Temperature range: -100～450℃
- Precision: ±0.01
Testing Cases
Reference Standards
- GB/T 18258-2000 Test Methods for Damping Performance of Damping Materials
- GB/T 5654-2007 Liquid Insulating Materials - Measurement of Relative Permittivity, Dielectric Loss Factor and DC Resistivity
- GB/T 21216-2007 Insulating Liquids - Test Methods for the Determination of Dielectric Loss Factor by Measuring Conductance and Capacitance
- GB/T 34665-2017 Method for Measuring Dielectric Loss Factor of Motor Coil/Winding Insulation (Industry Standard)
- DL/T 474.3-2006 Guide for Field Insulation Test Implementation - Part 3: Dielectric Loss Factor tanδ Test
- DL/T 1154-2012 Guide for Dielectric Loss Factor Test of High-Voltage Electrical Equipment at Rated Voltage
- JB/T 10181.12-2014 Calculation of Cable Current Carrying Capacity - Part 12: Current Carrying Capacity Formula (100% Load Factor) and Loss Calculation - Eddy Current Loss Factor of Cable Metal Sheath in Double-Circuit Planar Arrangement
- FORD FLTM EU-BV 060-2-2001 Measurement of Damping Coefficient for Sound Insulation Materials
- AS 1937.10:1977 Test Methods for Automotive Sealants and Adhesives - Determination of Damping Coefficient by Slab Method
- ASA S2.9-2008 (R2023) *American National Standard Parameters for Specifying Material Damping Characteristics and S
