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Pressure necessary to start the functioning of a device or system (DIN 24 312).

A special case of specific impedance is characteristic acoustic impedance Z 0, which is designated as the wave resistance of the medium. Z 0 is the quotient of the sound pressure and the sound particl

Device to deliver signals which change over time in the form of adjustable voltages with a sinusoidal, rectangular or triangular form, amongst others. Signal generators with computer-assisted, program

Protective filters are intended to protect the hydraulic devices against coarse contamination. They are installed upstream of devices sensitive to contamination in hydraulic circuits or in the control

Working cycle

Logarithmic sound pressure p, in relation to the sound pressure p o The reference sound pressure p O (pO = 20 μPa) is equal to the noise pressure of the human hearing threshold level at 1000 Hz in dB.

Agreements and regulations to ensure the safe and uninterrupted transfer of information between functional groups of an EDVA in accordance with the required functions. Minutes contain specifications o

Temporal relationship between the partial processes which help ensure a program is executed sequentially (DIN 44 300).

The time delay τ between two sine oscillations with the frequency f ( Figure P 7 ):

The operational amplifier is a DC amplifier with a large negative gain factor, very high input resistance and very high output resistance. The operational amplifier always operates on the principle of