スウェーデン語?2018年01月14日 15:16

スウェーデン語?
スウェーデン語?


検索したら出てきた動画。

(Poseidon solid state sensor - Swedish Dive fair 2017)
https://www.youtube.com/watch?v=S4nri8tKrP4

「2017/03/20 に公開:
Poseidon has created a rebreather oxygen sensor that outperforms galvanic sensors in lifetime and accuracy.」(ポセイドンは寿命と精度においてガルバニセンサーより優れたリブリーザー酸素センサーを開発しました)

注目したのは、防滴については配慮されているということと、JJやAPユニット(APDのCCR?)に対しても、追加のセンサーとしての適用を考慮している点だ(CEの手続き中?)。

C-PODという、CAN(ネットワークバスの仕様)に接続するセンサーホルダーの他社製品への接続用試作品(?)も出てくる。

残念ながら、コネクターは、従来品(3ピン)と同様、平ピン仕様だ(4ピン)。

ポセイドン用のC-PODでは、新旧どちらか一方と接続できるように、コネクターは両方ついている(画像参照)。

英語の字幕だと、たぶん、原語(スウェーデン語?)に忠実に翻訳しているんだろう。

まあいい。

英語の字幕見ながら、大体の意味が分かればいいのだ(日本語字幕にすると、かえって分かり辛い)。

前にも書いたかもしれないが、市場として規模が大きいのは、工業分野や医療分野だろうな。

特に、医療分野は要求水準は高いが、利益率も高いので美味しいところだろう。

たまたま、CCRの酸素センサーとして最初に商品化されたに過ぎない。

ポセイドンの株とか、買えないかな(うーん、先立つものが)・・・。

<以下、ビデオの字幕の筆起こし(テキトーです)>

We are here at the swedish dive fair 2017 and we are visiting Poseidons stand

Do you have anything new interesting this year?

Hi, my name is Richad Swartling and I will show you our new system with the M28 dive computer connected to a solid state oxygen sensor.

The computer we just started to sell and the sensor will be on the market in about one month.

For the system to work we have the M28 dive computer and something that we call a "c-pod" that basically is a holder for the sensor, with a digital interface.

And finally the sensor has basically the shape of a traditional galvanic sensor on the market today but is completely digital and electronic.

The advantage with this is that the sensor dose not need calibration, it is factory calibrated during manufacturing and it will always give 100% accurate readings during its lifetime.

And the lifetime is about the same as a divers lifetime, about 30-40 years, we are not sure.

but it is long compared to the galvanic sensors that lasts anything between 2 weeks and 1.5 years as best.

This product is quite unique right?

Yes, there is no other working solid state sensor on the market today that we know of we have a huge interest from both the dive industry and other markets.

Oxygen sensors are used in all kind of application around the world.

Can we have some details of how it works, what is the difference to a galvanic sensor?

A galvanic sensor is basically, as soon as you manufacture it, it starts to die.

It delivers a current in millivolts on the back and you read the current that is equal to a partial oxygen pressure of the gas that is passed on in front of the sensor.

This works completely different, if you look at the area where the gas passes we have a hydrophobic membrane and behind that we have our "magic" layer that changes its light reflecting characteristics depending on the oxygen partial of the gas so we basically shoots a laser beam that is reflected down to a sensor, and the amount is dependent on the partial pressure of in the gas.

This makes it completely insensitive to moisture, there have been other solid state sensors where tests has been conducted, but there has been problems with moist and heat in the loop.

but here we don't send the laser beam through the gas so it doesn't matter, we can completely fill this with water and it will start reading the PO2 within the water and as soon as you start removing it.

and have a small area of gas it will start reading the partial pressure from there instead.

So it is not at all sensitive to moist?

No, not at all.

We have been testing the sensor now for two years and found no failed reading at all.

Can you add this to a standard Poeidon rebreather or is an extra module needed?

No, as the system is today you need the entire system that is this "c-pod", the sensor and the computer.

It is a completely electronic product, it delivery an encrypted signal that goes down to this small circuit board down here where it then gets translated to our can-bus system then it goes by cable to computer that gives the reading on the screen.

We could try to blow on to this cell later just to show how much faster it responds then a galvanic sensor changes in partial pressure that is.

How will the possibilities be to later put this into other machines?

That you can do now as we start to deliver this next month, as I said the "c-pod" I needed and what sits next to it is basically plumbery, here is an adapter for JJ and here is one for an AP unit.

so all that you need is this connection that fits the rebreather you are using and then you are able to read the gas from the attached, it will not however control gas injection.

so this has to be done manually in a situation where you want to trust the solid state sensor.

One of our goals is that other manufacturers will integrate this system in their rebreathers but it is long process as you will have to re-certify the unit, for CE-certification.

and of course it will be a integration project as we will need to learn how to open other solenoids.

Our own, Se7en, will get this solution sometime this autumn/winter as we will modify the unit so that you can choose if you want a solid state or galvanic sensors.

So you will be able to have several of the solid state sensors in your machine?

We have a two sensor solution in our machine as we always have.

You will be able to put two solid state sensors in it, two galvanic, or one of each.

There is a safety aspect in having two different systems so I think if your intentions are deep dives.

you would probably choose to have one galvanic and one solid state sensor mounted in the module and then maybe a third, solid state, sensor to a redundant computer system.

like this one?

Yes exactly like this.

Very interesting, thank you very much.

しかしなあ、「se7en」とかは仕方ないが、「rebreather」がスペルチェックで引っかかるのは、憮然とするしかないな・・・。

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