CITIZEN FINE DEVICE CO. is exhibited Probe Current Sensor “OpECS” at Manufacturing World Japan 2022.
website๏ผhttps://cfd.citizen.co.jp/

This is the optical probe current sensor.
A magnetic film is attached to the tip of the optical fiber, and the Faraday effect is used to measure the current by replacing the angle of rotation of light with the current value.
A magnetic film is attached to the tip of the optical fiber, and the Faraday effect is used to measure the current by replacing the angle of rotation of light with the current value.

Since it only has a magnetic film on the tip of the fiber, it is very pinpoint and there is no need to clamp the wiring.

Since it is possible to measure the current just by bringing the tip of this fiber closer, we are currently measuring it here, but

we are analyzing the bus bar where a tremendous current is flowing.
You can see the waveform here, but you can see that the waveform is moving.
You can see the waveform here, but you can see that the waveform is moving.

From now on. First, we are trying to measure the current, that is, the total current of the electric wire.

I think you can see similar values.

I will try while scanning the bus bar.
I think this waveform is changing.
I think this waveform is changing.

This means that we are looking at the current distribution of this busbar.
Now, I’m measuring from the inside to the outside of the corner.
Now, I’m measuring from the inside to the outside of the corner.

There is almost no waveform on the outside.
This means that no current is flowing.
This means that no current is flowing.

I think this is probably the first time in the world that the

current flowing through this bus bar is not flowing on an overall average, but is flowing with a distribution, which can be visually confirmed.

Therefore, this sensor and Citizen Fine Device are under development.

We haven’t reached the point of selling it yet, but it’s better to
introduce it at such an exhibition and get opinions from everyone about what kind of specifications should be solidified in the future. I am thinking that I want to make it into a product.
introduce it at such an exhibition and get opinions from everyone about what kind of specifications should be solidified in the future. I am thinking that I want to make it into a product.