tag:blogger.com,1999:blog-952765818269557659.post966826434501918297..comments2024-02-08T19:37:03.882-07:00Comments on Arduino Collection: Geiger Counter - Part 1Unknownnoreply@blogger.comBlogger36125tag:blogger.com,1999:blog-952765818269557659.post-67804261641229125112019-12-25T09:51:07.486-07:002019-12-25T09:51:07.486-07:00This comment has been removed by a blog administrator.lucyhttps://www.blogger.com/profile/00855807269399011519noreply@blogger.comtag:blogger.com,1999:blog-952765818269557659.post-36854801917371993892017-12-02T13:18:31.525-07:002017-12-02T13:18:31.525-07:00Ok, thanks for the answer.
Btw, excellent job.Ok, thanks for the answer.<br />Btw, excellent job.Διαχειριστήςhttps://www.blogger.com/profile/05064530820244203480noreply@blogger.comtag:blogger.com,1999:blog-952765818269557659.post-31943652010257801092017-12-02T13:17:27.940-07:002017-12-02T13:17:27.940-07:00This comment has been removed by the author.Διαχειριστήςhttps://www.blogger.com/profile/05064530820244203480noreply@blogger.comtag:blogger.com,1999:blog-952765818269557659.post-36537468776662227952017-12-02T09:02:39.059-07:002017-12-02T09:02:39.059-07:00No, sorry. I no longer have those files.No, sorry. I no longer have those files.BroHoganhttps://www.blogger.com/profile/05890388275768638096noreply@blogger.comtag:blogger.com,1999:blog-952765818269557659.post-22558571680927161272017-12-02T06:28:33.538-07:002017-12-02T06:28:33.538-07:00The link for the Eagle files is not working.
Is it...The link for the Eagle files is not working.<br />Is it still posible to get these files?Διαχειριστήςhttps://www.blogger.com/profile/05064530820244203480noreply@blogger.comtag:blogger.com,1999:blog-952765818269557659.post-33604386715704086872017-06-14T16:22:17.435-06:002017-06-14T16:22:17.435-06:00Thanks for your response. I'll implement the s...Thanks for your response. I'll implement the suggested actions and hopefully the circuit will work.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-952765818269557659.post-68986203409029616592017-06-14T15:13:21.462-06:002017-06-14T15:13:21.462-06:00That's a weird one. By your own description it...That's a weird one. By your own description it would seem that you have an error that you are repeating when you transfer from a breadboard to a perfboard.<br />However you say it works when short the tube.<br />First I would try making sure your perfboard / PCB is clean and that you have it on something really non-conductive. Then I'd try increasing the HV. With a low signal, you should see counts on the display even before the click and flash.<br />Meter out all the pins 74ACT14N with what is expected in the schematic. If you have a scope use it.<br />You may have some HV leakage or a wiring problem. The circuit works best with a CMOS version of the 555. Use your finger instead of a direct short. If you get counts, maybe your tube died between the breadboard and the perfboard.<br />That's all I can think of.BroHoganhttps://www.blogger.com/profile/05890388275768638096noreply@blogger.comtag:blogger.com,1999:blog-952765818269557659.post-64385476002937822372017-06-14T13:15:00.690-06:002017-06-14T13:15:00.690-06:00Hello, I am sorry to bother you, but I seem to hav...Hello, I am sorry to bother you, but I seem to have difficulty in getting the Geiger Counter Circuit to work. I've attempted to construct the circuit multiple times, but they all seem to fail to function properly. The only success I've had is with making the circuit on breadboard. The circuit worked flawlessly on breadboard, but when I attempt to construct the circuit on a more permanent layout such as perfboard, the circuit fails to work. In my attempts, the high voltage section opt the circuit works, with y DMM measuring ~200V across the GM tube's connectors. However the circuit fails to make clicks or flashes of light when a test source is brought near the GM tube. Additionally, connecting an MCU with an LCD and code from your DIY Geiger kit website displays 0 CPM. However shorting out the GM tube connectors triggers a click from the piezo and a flash of light from the LED. I have constructed the circuit multiple times, on various types of perfboard and even a DIY PCB. However the circuit fails. Would you be able to provide a potential solution based on the information I have given? Many thanksAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-952765818269557659.post-47068212440303001982017-03-14T08:51:19.730-06:002017-03-14T08:51:19.730-06:00Also for anyone else attempting to make this, a re...Also for anyone else attempting to make this, a regular speaker will also work if a piezo is not available.Nathan Shinnoreply@blogger.comtag:blogger.com,1999:blog-952765818269557659.post-40963101689204320982017-03-12T12:33:34.489-06:002017-03-12T12:33:34.489-06:00The piezo came with a crystal radio kit back when ...The piezo came with a crystal radio kit back when I was just getting started in electronics. Thanks once again.Nathan Shinnoreply@blogger.comtag:blogger.com,1999:blog-952765818269557659.post-54842184228173060202017-03-12T12:22:16.334-06:002017-03-12T12:22:16.334-06:00There you go. Aces!
That's one interesting loo...There you go. Aces!<br />That's one interesting looking piezo!BroHoganhttps://www.blogger.com/profile/05890388275768638096noreply@blogger.comtag:blogger.com,1999:blog-952765818269557659.post-35653999367171329982017-03-12T12:19:53.112-06:002017-03-12T12:19:53.112-06:00Got it working: https://drive.google.com/file/d/0B...Got it working: https://drive.google.com/file/d/0B6FEd1tXKqNzTVptQUVkb3lDVG8/view?usp=drivesdkNathan Shinnoreply@blogger.comtag:blogger.com,1999:blog-952765818269557659.post-56787692633962490712017-03-12T12:02:54.369-06:002017-03-12T12:02:54.369-06:00Thanks for your quick reply. The piezo is an "...Thanks for your quick reply. The piezo is an "active" piezo, which solves my problem. Thanks once again.Nathan Shinnoreply@blogger.comtag:blogger.com,1999:blog-952765818269557659.post-47260884770617976082017-03-12T10:50:46.111-06:002017-03-12T10:50:46.111-06:00Maybe you're using an "active" piezo...Maybe you're using an "active" piezo? One that has it's own oscillator built in - so if you connect it to a battery it makes a tone.<br />If so you need a "pure" piezo - without the osc.<br />If not it could be lots of things.BroHoganhttps://www.blogger.com/profile/05890388275768638096noreply@blogger.comtag:blogger.com,1999:blog-952765818269557659.post-27616946639686345152017-03-12T10:50:39.311-06:002017-03-12T10:50:39.311-06:00Maybe you're using an "active" piezo...Maybe you're using an "active" piezo? One that has it's own oscillator built in - so if you connect it to a battery it makes a tone.<br />If so you need a "pure" piezo - without the osc.<br />If not it could be lots of things.BroHoganhttps://www.blogger.com/profile/05890388275768638096noreply@blogger.comtag:blogger.com,1999:blog-952765818269557659.post-2489627813380598622017-03-12T10:42:57.018-06:002017-03-12T10:42:57.018-06:00Sorry to disturb you again, but I have a question ...Sorry to disturb you again, but I have a question concerning this "ancient" project. So I built the circuit and it works. (Yay!) However, the circuit emits a high pitched drone sound while in operation. Link to a video in operation: https://drive.google.com/file/d/0B6FEd1tXKqNzWkp4Q2lGbjNWMjA/view?usp=drivesdk <br />What could the problem be, and how could I fix it. Thanks in advance.Nathan Shinnoreply@blogger.comtag:blogger.com,1999:blog-952765818269557659.post-88148096636349608052016-08-31T15:19:13.847-06:002016-08-31T15:19:13.847-06:00Thanks!Thanks!Nathan Shinnoreply@blogger.comtag:blogger.com,1999:blog-952765818269557659.post-38376866790676129862016-08-30T17:44:31.882-06:002016-08-30T17:44:31.882-06:00Input is 4-9V as shown on the schematic. Since the...Input is 4-9V as shown on the schematic. Since there is no microprocessor involved it's not critical.<br />Note this project is ancient. <br />See https://sites.google.com/site/diygeigercounter/circuit-description for the current.<br />BroHoganhttps://www.blogger.com/profile/05890388275768638096noreply@blogger.comtag:blogger.com,1999:blog-952765818269557659.post-12487857969762571012016-08-30T17:34:41.050-06:002016-08-30T17:34:41.050-06:00Nice build. I've already bought the parts in o...Nice build. I've already bought the parts in order to build this,but before I start, I want to clarify something. In your schematic, the input voltage written as 9V, but in your pictures, you use 3 AAAS for a total of 4.5V. So what is the input voltage?Nathan Shinnoreply@blogger.comtag:blogger.com,1999:blog-952765818269557659.post-62511097578965302452015-06-17T19:03:54.667-06:002015-06-17T19:03:54.667-06:00Hi Robert,
Interesting circuit. I have a few quest...Hi Robert,<br />Interesting circuit. I have a few questions.<br /><br />Does the feedback just stabilize changes in battery voltage or does it also stabilize the HV during high counts?<br /><br />Why did you choose an op amp instead of a comparator?<br /><br /> Does the noise come from the MC34063? On your scope shot it looks like it's almost the same amplitude as the pulse.Does the op amp remove it?<br /><br />Thanks for your post. Good luck with your counter.<br /><br />JohnBroHoganhttps://www.blogger.com/profile/05890388275768638096noreply@blogger.comtag:blogger.com,1999:blog-952765818269557659.post-51334268156766457682015-06-17T04:54:21.772-06:002015-06-17T04:54:21.772-06:00Nice article.
I made a similar construction of a ...Nice article.<br /><br />I made a similar construction of a Geiger counter, I tried 555 timer (but without feedback of the output voltage), but the voltage drifted over time.<br /><br />Finally I've used MC34063 chip (DC/DC converter) and it was fine.<br /><br />Power consumption of your design is very nice, 3mA, that's a nice result, mine is 10x bigger at the same voltage.<br /><br />If anyone is interested, her's a link to my counter: http://robertgawron.blogspot.com/2015/02/homemade-geigermuller-counter-part-i.html<br />RobertGawronhttps://www.blogger.com/profile/10392172189489700514noreply@blogger.comtag:blogger.com,1999:blog-952765818269557659.post-48707840665722726692014-03-10T14:03:26.512-06:002014-03-10T14:03:26.512-06:00Sorry, you'll have to do your own design work ...Sorry, you'll have to do your own design work on that. Though it should work, I wanted to keep the MCU out of the picture of HV side.BroHoganhttps://www.blogger.com/profile/05890388275768638096noreply@blogger.comtag:blogger.com,1999:blog-952765818269557659.post-38336513551258191162014-03-10T13:29:09.682-06:002014-03-10T13:29:09.682-06:00Hi!
I've got tons of 8-pin PIC chips which wo...Hi!<br /><br />I've got tons of 8-pin PIC chips which would act very well as a dedicated PWM pulse generator, and probably remove a lot of the discrete components. Any way you could post a sketch of what the HV generator would look like with a MCU driving the pulse?<br /><br />Thanks!Guidohttps://www.blogger.com/profile/01223250935491253139noreply@blogger.comtag:blogger.com,1999:blog-952765818269557659.post-20113935217921790942011-08-12T05:58:33.407-06:002011-08-12T05:58:33.407-06:00I haven't tried this myself so I don't kno...I haven't tried this myself so I don't know for sure. But look at the comments in Part 3. Someone says what they did - although it wasn't completely clear.<br /><br />The difference is that one uses CMOS types of semiconductors inside the chip and the NE555 uses bipolar. Best to Google if you want a better answer.<br /><br />I'd suggest getting a CMOS version though. Radioshack sell them if you live near one, but they are not that hard to find. There are several other part numbers for them.BroHoganhttps://www.blogger.com/profile/05890388275768638096noreply@blogger.comtag:blogger.com,1999:blog-952765818269557659.post-88355951243316879842011-08-12T05:00:25.659-06:002011-08-12T05:00:25.659-06:00Hello i have only NE555N timer what i must change ...Hello i have only NE555N timer what i must change in shematic to use this timer?<br />And what difference beetwen NE555N and CMOS wersion TLC555CP?Anonymousnoreply@blogger.com