The impedance analogy preserves the analogy between electrical impedance and mechanical impedance whereas the mobility analogy does not.
12.
The mobility analogy is characterised by admittance in the same way that the impedance analogy is characterised by impedance.
13.
Each Kirchhoff's laws, that apply in the electrical domain also apply to the mechanical mobility analogy.
14.
The principal disadvantage of the mobility analogy is that it does not maintain the analogy between electrical and mechanical impedance.
15.
The mobility analogy preserves the topology of the mechanical system when transferred to the electrical domain whereas the impedance analogy does not.
16.
The mobility analogy does not preserve this analogy between impedances across domains, but it does have another advantage over the impedance analogy.
17.
On the other hand, the impedance analogy preserves the analogy between electrical impedance and mechanical impedance whereas the mobility analogy does not.
18.
Mechanical admittance and the associated mobility analogy were introduced by F . A . Firestone in 1932 to overcome the issue of preserving topologies.
19.
Here pressure is made analogous to voltage ( as in the impedance analogy ) instead of current ( as in the mobility analogy ).
20.
Circuit diagrams using the mobility analogy more closely match the mechanical arrangement of the circuit, making it more intuitive from a mechanical engineering standpoint.
