Hioki IM3570 - Page 256

5.10 Equivalent Circuit Analysis Function
248
4
Oscillation Mode Settings
Select the oscillation mode.
Electromechanical coupling coefficient for pla-
nar oscillation
Electromechanical coupling coefficient for
long-side extension oscillation
Electromechanical coupling coefficient for lon-
gitudinal oscillation
Electromechanical coupling coefficient for
thickness-mode oscillation
Electromechanical coupling coefficient for
shearing oscillation
Kr
f
p
f
s
–
af
s
bf
p
f
s
–+
------------------------------------------------------- -
=
K31

2
---
f
p
f
s
-----


2
---
f
p
f
s
-----

2
---
f
p
f
s
-----



tan–
--------------------------------------------------------
=
K33

2
---
f
s
f
p
-----

2
---
f
s
f
p
-----



cot=
Kt

2
---
f
s
f
p
-----

2
---
f
s
f
p
-----



cot=
K15

2
---
f
s
f
p
-----

2
---
f
s
f
p
-----



cot=
5
Select the frequency type
Frequency Type Setting
Select the resonant frequency to use when calculating
the electromechanical coupling coefficient.
Selects the series/parallel resonant frequency.
Selects the resonant/anti-resonant frequency.
(Substitutes
f
r
for f
s
and f
a
for f
p
in the
equations in Step
4.)