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2. Transfer function - Wikipedia

   en.wikipedia.org/wiki/Transfer_function

   The transfer function of a two-port electronic circuit, such as an amplifier, might be a two-dimensional graph of the scalar voltage at the output as a function of the scalar voltage applied to the input; the transfer function of an electromechanical actuator might be the mechanical displacement of the movable arm as a function of electric ...

3. Bilinear transform - Wikipedia

   en.wikipedia.org/wiki/Bilinear_transform

   The bilinear transform is a first-order Padé approximant of the natural logarithm function that is an exact mapping of the z-plane to the s-plane.When the Laplace transform is performed on a discrete-time signal (with each element of the discrete-time sequence attached to a correspondingly delayed unit impulse), the result is precisely the Z transform of the discrete-time sequence with the ...

4. General time- and transfer constant analysis - Wikipedia

   en.wikipedia.org/wiki/General_time-_and_transfer...

   Transfer constants are low-frequency ratios of the output variable to input variable under different open- and short-circuited active elements. In general, a transfer function (which can characterize gain, admittance, impedance, trans-impedance, etc., based on the choice of the input and output variables) can be written as:

5. Proportional control - Wikipedia

   en.wikipedia.org/wiki/Proportional_control

   , is process transfer function; the input into the block is flow rate and output is tank level. The output as a function of the setpoint, r , is known as the closed-loop transfer function . g c l = g p g c 1 + g p g c , {\displaystyle {\mathit {g_{cl}}}={\frac {\mathit {g_{p}g_{c}}}{1+g_{p}g_{c}}},} If the poles of g c l , {\displaystyle ...

6. Time constant - Wikipedia

   en.wikipedia.org/wiki/Time_constant

   First order LTI systems are characterized by the differential equation + = where τ represents the exponential decay constant and V is a function of time t = (). The right-hand side is the forcing function f(t) describing an external driving function of time, which can be regarded as the system input, to which V(t) is the response, or system output.

7. List of first-order theories - Wikipedia

   en.wikipedia.org/wiki/List_of_first-order_theories

   Use ordinary first-order logic, but add a new unary predicate "Set", where "Set(t)" means informally "t is a set". Use ordinary first-order logic, and instead of adding a new predicate to the language, treat "Set(t)" as an abbreviation for "∃y t∈y" Some first-order set theories include: Weak theories lacking powersets:

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9. Extra element theorem - Wikipedia

   en.wikipedia.org/wiki/Extra_element_theorem

   Where the Laplace-domain transfer functions and impedances in the above expressions are defined as follows: H(s) is the transfer function with the extra element present. H ∞ (s) is the transfer function with the extra element open-circuited. H 0 (s) is the transfer function with the extra element short-circuited. Z(s) is the impedance of the ...