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This part of ISO 17987 specifies the 12 V and 24 V electrical physical layers (EPL) of the LIN communications system. The electrical physical layer for LIN is designed for low cost networks with bit rates up to 20 kbit/s to connect automotive electronic control units (ECUs). The medium that is used...
5.1 Concepts-This guide summarizes the equipment, field procedures, and data processing methods used to interpret geologic conditions, and to identify and provide locations of geologic anomalies and man-made objects with the GPR method. The GPR uses high-frequency EM waves (from 10 to 3000 MHz) to...
This European Standard relates to piezoelectric transducer ceramics for application both as transmitters and receivers in electroacoustics and ultrasonics over a wide frequency range. They are used for generation and transmission of acoustic signals, for achievement of ultrasonic effects,...
5.1 The ultrasonic pulse velocity, V, of longitudinal ultrasonic stress waves in a concrete mass is related to its elastic properties and density according to the following relationship: where: E = dynamic modulus of elasticity, μ = dynamic Poisson's ratio, and ? = density. 5.2 This test method is...
5.1 The pulse velocity, V, of longitudinal stress waves in a concrete mass is related to its elastic properties and density according to the following relationship: where: E = dynamic modulus of elasticity, μ = dynamic Poisson's ratio, and ρ = density. 5.2 This test method is applicable to assess...