Hakuteksti "test".

generators. Signal generators are an important tool in measurement technology to generate reproducible test signals . As function generators, they may also simulate the effect of process-specific signals on

g. measuring instrument or measuring devices ) on which the error and also the effects in defined test conditions are within defined limits; they can have a class identifier that mostly corresponds to

Standard measure for the hardness of elastomers , in which the penetration depth is measured in a test specimen. A distinction is made between Shore A for softer specimens (up to approx. 90 Shore A) and

The α values is defined by the multipass test according to ISO 4572. It is a measure of the total quantity of ACFTD supplied to the filter element until the permissible final pressure difference is reached [...] flow rate QN: γ = contamination with ACFTD in the flow rate, Q = flow rate through the filter, τ = test time until the permissible final pressure difference is reached. The α value corresponds to the term

In some test procedures on control processes, the control circuit is "opened". As a result an input and an output are produced at the interface. The opened circuit can then be treated as a single control

filter cumulative efficiency is normally stated in % . It is related to the value βx from the multipass test .

Also called the apparent dirt holding capacity. Dirt holding capacity is the quantity of test dirt that must be added before a defined differential pressure Δp is reached. In addition to the α-value, the

the difference between the start and end value. The ramp is used in feedback control technology as a test function to determine the transfer behaviour of a system (). In >fluid technology, ramps are primarily

used and –– when using a bypass valve –– its initial differential pressure Δp A ( Figure S 30 ). The test for the dirt absorbing capacity is performed in accordance with ISO 4572 ( Filter cumulative efficiency

interest, and has a very large amplitude is referred to as a pulse or shock function. These kinds of test signals were thoroughly investigated by P. A. M. Dirac. They are also referred to therefore as a Dirac