Figure 1:
![Tetra-polar impedance measurement scheme [3].](https://sciendo-parsed.s3.eu-central-1.amazonaws.com/65b92df1b81b0e1a1e5d179a/j_joeb-2024-0005_fig_001.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=ASIA6AP2G7AKHQBRQUXV%2F20260320%2Feu-central-1%2Fs3%2Faws4_request&X-Amz-Date=20260320T133443Z&X-Amz-Expires=3600&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGwaDGV1LWNlbnRyYWwtMSJGMEQCIEoXmSwpibts6VbJKH1X8QFZL6P2Lyjf7Z0Z3dj36CY6AiBnAXBC1UULBB%2BwymGYnEFJSGUPgU7RyFVemjvSGYA90iq8BQg1EAIaDDk2MzEzNDI4OTk0MCIMFrguYVxk2bjDcdafKpkFY3TqU2fX3l6BZ4HVoOeGAervQ%2FzfMOJu46bLheuzgn5MLzWNI9VRfKV%2FGuQq2xX838xFDIzP%2FTUUIYz008DRM5vgEtdN3fHfhN6t%2FN3ERSKROj8v%2B9HYaTMHLoY9e1hIaHALoyErt0hPoqj9qZdEWgvVB0z8dODCsh%2FQ28Oq4u8vA2iObvUxqzuK8S%2BKyHnVKNr7CUnI1eXOxY7wTNME0kiaUBc3vuTE8hQSDkmzwuazUkX74e47M%2B%2FZ%2BmuiQufUWslFbfk9Tmj4lZ4dI8bmDkgxISvhVHqTgQmKpB9jv6lIZoaEVui8poWw6VF9%2F5uSAYZ5kzq%2BYKgfqfgc91SHSHBV7iiLlJzPSwKmEjVvJczBLlMC0Zn0wXFSoM5hxcqJBiJ3%2B2VdAvd7sydkJhPTHcNik72IOk4I7vyOzT%2B5l3IVFk4KRxnpf%2BDjKnv6a%2FBjz19GILAwa2VFW4BcV9LUwub3eXfOGUguynFn%2FwjMdaOkk9N61o7H0Vsif1NAR9flGG1bdcimxASoGYW40xjyciDqVXytF6oIyqvDuUCSDf6%2FsA8%2BALJkjWJ7oNkbG%2FtVjIA1bs4kgpgfsrJl7FUvufWU0wD8t4kA2P70ly0h5LhxnHpSX5mf8wgaLWwKrtwdajXXnkiUnwx4E5nUIvc9UnQqUNb1S9P0EPfPMcKlKnxN1kbjMeBT9LeJuxVzDSVH0ii4VHMFtCkTabPE0iaTCZQKTH2imNwUPgSySHuiT02Nd7Wns8vTE91LxIXKwpD4p6EjAz30B7kcNkMZQ0zFMkVcAgsrRiMHez%2FZSqgkdjZZEJKsXlxxFJuMPCNJIhYeAhKTky6wxmeY3c2YHYYUXptOg3OQ67TYEjFaRh5SnRoaaBP%2BioXgFP4w4O%2F0zQY6sgG3UFhtLyPLmjDewdqinkbr9bUk%2BwN%2F1PHOTPBKUpmebw%2B8UupMYiJT26irvewTzK27RrUaWXAkKN3w12E6BRKpMjhd0lCW8oIMwSBzDybNP9sefUnR6oHSsyKTML5oFX8FiEf%2FixkZmBRGBZMgjLkISr13UM7HZVPvIjA%2FguTU8GN4DMOM1%2BSgQrKVnKQF6ozdiuBUi8DP556gU72bFwC1XOEbrobtthzC6vBWkCJrgm3Q&X-Amz-Signature=0c81c22ea4870e5ed404c0d7edb9575a5559ef1c14d2b706d05764c6a7ae96c4&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject)
Figure 2:
![Basic concept of FIM-6 [3].](https://sciendo-parsed.s3.eu-central-1.amazonaws.com/65b92df1b81b0e1a1e5d179a/j_joeb-2024-0005_fig_002.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=ASIA6AP2G7AKHQBRQUXV%2F20260320%2Feu-central-1%2Fs3%2Faws4_request&X-Amz-Date=20260320T133443Z&X-Amz-Expires=3600&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGwaDGV1LWNlbnRyYWwtMSJGMEQCIEoXmSwpibts6VbJKH1X8QFZL6P2Lyjf7Z0Z3dj36CY6AiBnAXBC1UULBB%2BwymGYnEFJSGUPgU7RyFVemjvSGYA90iq8BQg1EAIaDDk2MzEzNDI4OTk0MCIMFrguYVxk2bjDcdafKpkFY3TqU2fX3l6BZ4HVoOeGAervQ%2FzfMOJu46bLheuzgn5MLzWNI9VRfKV%2FGuQq2xX838xFDIzP%2FTUUIYz008DRM5vgEtdN3fHfhN6t%2FN3ERSKROj8v%2B9HYaTMHLoY9e1hIaHALoyErt0hPoqj9qZdEWgvVB0z8dODCsh%2FQ28Oq4u8vA2iObvUxqzuK8S%2BKyHnVKNr7CUnI1eXOxY7wTNME0kiaUBc3vuTE8hQSDkmzwuazUkX74e47M%2B%2FZ%2BmuiQufUWslFbfk9Tmj4lZ4dI8bmDkgxISvhVHqTgQmKpB9jv6lIZoaEVui8poWw6VF9%2F5uSAYZ5kzq%2BYKgfqfgc91SHSHBV7iiLlJzPSwKmEjVvJczBLlMC0Zn0wXFSoM5hxcqJBiJ3%2B2VdAvd7sydkJhPTHcNik72IOk4I7vyOzT%2B5l3IVFk4KRxnpf%2BDjKnv6a%2FBjz19GILAwa2VFW4BcV9LUwub3eXfOGUguynFn%2FwjMdaOkk9N61o7H0Vsif1NAR9flGG1bdcimxASoGYW40xjyciDqVXytF6oIyqvDuUCSDf6%2FsA8%2BALJkjWJ7oNkbG%2FtVjIA1bs4kgpgfsrJl7FUvufWU0wD8t4kA2P70ly0h5LhxnHpSX5mf8wgaLWwKrtwdajXXnkiUnwx4E5nUIvc9UnQqUNb1S9P0EPfPMcKlKnxN1kbjMeBT9LeJuxVzDSVH0ii4VHMFtCkTabPE0iaTCZQKTH2imNwUPgSySHuiT02Nd7Wns8vTE91LxIXKwpD4p6EjAz30B7kcNkMZQ0zFMkVcAgsrRiMHez%2FZSqgkdjZZEJKsXlxxFJuMPCNJIhYeAhKTky6wxmeY3c2YHYYUXptOg3OQ67TYEjFaRh5SnRoaaBP%2BioXgFP4w4O%2F0zQY6sgG3UFhtLyPLmjDewdqinkbr9bUk%2BwN%2F1PHOTPBKUpmebw%2B8UupMYiJT26irvewTzK27RrUaWXAkKN3w12E6BRKpMjhd0lCW8oIMwSBzDybNP9sefUnR6oHSsyKTML5oFX8FiEf%2FixkZmBRGBZMgjLkISr13UM7HZVPvIjA%2FguTU8GN4DMOM1%2BSgQrKVnKQF6ozdiuBUi8DP556gU72bFwC1XOEbrobtthzC6vBWkCJrgm3Q&X-Amz-Signature=03a10f7cac8143c0f211da8c24a5e84ac1b7d26c804f6ddd0ce5699724257ff5&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject)
Figure 3:

Figure 4:

Figure 5:

Figure 6:

Figure 7:

Figure 8:

Figure 9:

Figure 10:

Figure 11:

Figure 12:

Figure 13:

Figure 14:

![Tetra-polar impedance measurement scheme [3].](https://sciendo-parsed.s3.eu-central-1.amazonaws.com/65b92df1b81b0e1a1e5d179a/j_joeb-2024-0005_fig_001.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=ASIA6AP2G7AKHQBRQUXV%2F20260320%2Feu-central-1%2Fs3%2Faws4_request&X-Amz-Date=20260320T133443Z&X-Amz-Expires=3600&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEGwaDGV1LWNlbnRyYWwtMSJGMEQCIEoXmSwpibts6VbJKH1X8QFZL6P2Lyjf7Z0Z3dj36CY6AiBnAXBC1UULBB%2BwymGYnEFJSGUPgU7RyFVemjvSGYA90iq8BQg1EAIaDDk2MzEzNDI4OTk0MCIMFrguYVxk2bjDcdafKpkFY3TqU2fX3l6BZ4HVoOeGAervQ%2FzfMOJu46bLheuzgn5MLzWNI9VRfKV%2FGuQq2xX838xFDIzP%2FTUUIYz008DRM5vgEtdN3fHfhN6t%2FN3ERSKROj8v%2B9HYaTMHLoY9e1hIaHALoyErt0hPoqj9qZdEWgvVB0z8dODCsh%2FQ28Oq4u8vA2iObvUxqzuK8S%2BKyHnVKNr7CUnI1eXOxY7wTNME0kiaUBc3vuTE8hQSDkmzwuazUkX74e47M%2B%2FZ%2BmuiQufUWslFbfk9Tmj4lZ4dI8bmDkgxISvhVHqTgQmKpB9jv6lIZoaEVui8poWw6VF9%2F5uSAYZ5kzq%2BYKgfqfgc91SHSHBV7iiLlJzPSwKmEjVvJczBLlMC0Zn0wXFSoM5hxcqJBiJ3%2B2VdAvd7sydkJhPTHcNik72IOk4I7vyOzT%2B5l3IVFk4KRxnpf%2BDjKnv6a%2FBjz19GILAwa2VFW4BcV9LUwub3eXfOGUguynFn%2FwjMdaOkk9N61o7H0Vsif1NAR9flGG1bdcimxASoGYW40xjyciDqVXytF6oIyqvDuUCSDf6%2FsA8%2BALJkjWJ7oNkbG%2FtVjIA1bs4kgpgfsrJl7FUvufWU0wD8t4kA2P70ly0h5LhxnHpSX5mf8wgaLWwKrtwdajXXnkiUnwx4E5nUIvc9UnQqUNb1S9P0EPfPMcKlKnxN1kbjMeBT9LeJuxVzDSVH0ii4VHMFtCkTabPE0iaTCZQKTH2imNwUPgSySHuiT02Nd7Wns8vTE91LxIXKwpD4p6EjAz30B7kcNkMZQ0zFMkVcAgsrRiMHez%2FZSqgkdjZZEJKsXlxxFJuMPCNJIhYeAhKTky6wxmeY3c2YHYYUXptOg3OQ67TYEjFaRh5SnRoaaBP%2BioXgFP4w4O%2F0zQY6sgG3UFhtLyPLmjDewdqinkbr9bUk%2BwN%2F1PHOTPBKUpmebw%2B8UupMYiJT26irvewTzK27RrUaWXAkKN3w12E6BRKpMjhd0lCW8oIMwSBzDybNP9sefUnR6oHSsyKTML5oFX8FiEf%2FixkZmBRGBZMgjLkISr13UM7HZVPvIjA%2FguTU8GN4DMOM1%2BSgQrKVnKQF6ozdiuBUi8DP556gU72bFwC1XOEbrobtthzC6vBWkCJrgm3Q&X-Amz-Signature=0c81c22ea4870e5ed404c0d7edb9575a5559ef1c14d2b706d05764c6a7ae96c4&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject)
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© 2024 Trilochan Khanal, K Siddique-e Rabbani, published by University of Oslo
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