Pulse code modulation
of impulses of different strengths, but by encryption using a binary code. The sampling frequency was internationally set at 8 kHz and the number of amplitude values is limited to 256 (8-Bit codeword)
Hagen-Poiseuille's law
its viscosity . The relationship between flow rate and pressure difference is a linear one. This law was discovered by Gotthelf Hagen in 1839 and shortly afterwards (independently) by George Gabriel Stokes
Kinematical viscosity v
usual parameter for viscosity. This parameter changes with the temperature of the hydraulic fluid. ν was previously given in degrees Engler (°E), and then in stokes or centistokes (cSt), but is now given
Reversal error
if the input signal is changed from a static point in the same direction in which the static point was approached (DIN 24 311) ( Figure U 14 ). In measuring technology : Quantitative statement of the appearance
Response sensitivity
if the input signal is changed from a static point in the same direction in which the static point was approached (Figure A 21). The parameter is stated in mA or in % of the nominal current (DIN 24 311)