An isolation diaphragm (46) between the first and second ports isolates process fluid from isolation fluid.

The electric core comprises a negative piece, an isolation membrane, and a positive piece.

A fluid is passed through pores in an electrically insulating membrane.

The porous electron insulating membrane contains an organic oxide filler and a binder, and the sheet separator is 1.5 or more times as thick as the porous electron insulating membrane.

The negative piece, the isolation membrane, and the positive piece are rolled around the central tube in sequence.

At least a first isolation diaphragm is fixed onto the interface body and is made of the same material of the interface body.

The charge storage layer is formed inside an inter-cell insulation membrane that fills a separated space between the gate electrodes.

The first isolation diaphragm is in fluid communication with the pressure sensor and is suitable for interfacing with a process fluid.

The filler material (82) can be polyurethane.

When a fringing field is applied, charge in the activated region is trapped in the charge storage field by means of the inter-cell insulation membrane.

A through-hole, which penetrates through a plurality of gate electrodes that are perpendicularly stacked, is formed on a substrate, and the inside of the through-hole is filled with a tunneling insulation membrane or an activated region.