Hello, new station in Belgium
3 weeks 1 day ago - 3 weeks 1 day ago #7516
by BE_Soignies_GDK101
Hello, new station in Belgium was created by BE_Soignies_GDK101
Hi,
I had a FTLab GDK101 sensor for a few years but no used yet. Due to geopolitical situation now and my proximity of SHAPE in Belgium, wanted to use it
Now it's done with a esp8266(Heltec wifi kit 8 with oled display). The sensor is connected with I2C(serial and pulse output available), and i use 10 minutes average register as data for radmon.
This sensor use photodiodes(10) and transimpedance amplifiers. It detect only gamma.
Best Regards,
Remy
I had a FTLab GDK101 sensor for a few years but no used yet. Due to geopolitical situation now and my proximity of SHAPE in Belgium, wanted to use it
Now it's done with a esp8266(Heltec wifi kit 8 with oled display). The sensor is connected with I2C(serial and pulse output available), and i use 10 minutes average register as data for radmon.
This sensor use photodiodes(10) and transimpedance amplifiers. It detect only gamma.
Best Regards,
Remy
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6 days 2 hours ago #7521
by Simomax
Replied by Simomax on topic Hello, new station in Belgium
Hi and welcome both to radmon.org!
(Sorry, I know I'm a little late!)
@BE_Soignies_GDK101 - That's a really neat little sensor you are using. According to the website it has an accuracy of +-10%, which is very good for measuring radiation. By comparison a SBM-20 GM tube is ~+-20%, so very much more accurate. Much less sensitive though, and I can see that by your background count of ~7.5 CPM. That will be down to the surface detection area of the sensor. I have a MGP DMC-2000 personal dosimeter and that has a similar looking sensor inside to yours. Basically a PCB with metal can over it. I suspect the sensor in my DMC-2000 is of a similar design to yours. I'd be interested in getting my hands on one to do some comparison tests, but they aren't cheap (90 euro) so I'll keep an eye out for a used one.
@BE_Soignies_GDK101 - That's a really neat little sensor you are using. According to the website it has an accuracy of +-10%, which is very good for measuring radiation. By comparison a SBM-20 GM tube is ~+-20%, so very much more accurate. Much less sensitive though, and I can see that by your background count of ~7.5 CPM. That will be down to the surface detection area of the sensor. I have a MGP DMC-2000 personal dosimeter and that has a similar looking sensor inside to yours. Basically a PCB with metal can over it. I suspect the sensor in my DMC-2000 is of a similar design to yours. I'd be interested in getting my hands on one to do some comparison tests, but they aren't cheap (90 euro) so I'll keep an eye out for a used one.
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