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Pictures of inside the IMPEX ALPHA head.

Geo Dowell All Messages By This Member #148 4 screws and the "nose cone" top part of the sensor housing separates. It has the sensor in it, hardwired with 6 wire umbilical cord. Sensor faces down towards the filter, and the lever mechanism that allows filters to be changed rotates the screened filter back downward to accommodate that. When the lever is rotated back to park/locked location, the filter back module cams up, pressing the filter home, blocking external light and air paths, while a switch on the lever alerts the control box there was a filter change. The popup dialog box must be ticked "was the filter replaced Y/N" to continue. Aside from that action there are no other mechanisms present in the slot. Below the back screen in the larger part of the sensor housing everything there has to do with airflow, much of the plumbing has to do with the Hot-Wire Anemometer air mass sensor, similar to what we have in the Eberline 6A head. Three of the 6 wires from the sensor go to those mini coaxial plugs in the main connector, the other 3 to regular signal pins. Most probably those first 3 are sensor signals, while the other 3 are power to the sensor and presumably a preamp/line driver in the "nose cone". No magic here, just updated versions of 1980 tech. The magic is in the control box computer, and that's what the patent covers. Geo IMPEX_HEAD_OPEN_small.jpg
Nick Andrews All Messages By This Member #199 I saw this picture before.? ?Were there others??? Dud, I figured there's a spec for the thickness of filter carriers with a safe range.? I was imagining that it would need to be a special thinner source disc to fit in there.? Was thinking a filter carrier might be made of thin plastic or kydex pieces to sandwich filter.? ?Pictures of the actual ones look like there's a gasket to seal it in.? ?An o-ring would be too thick,? so maybe a thin smear of permatex or other gasket material might work for that.? Maybe I can close the filter lever without the card in place and use feeler gauges to measure the closed dimension.? toggle quoted message Show quoted text On Mon, May 30, 2022, 2:07 PM Geo Dowell <GEOelectronics@...> wrote: 4 screws and the "nose cone" top part of the sensor housing separates. It has the sensor in it, hardwired with 6 wire umbilical cord. Sensor faces down towards the filter, and the lever mechanism that allows filters to be changed rotates the screened filter back downward to accommodate that. When the lever is rotated back to park/locked location, the filter back module cams up, pressing the filter home, blocking external light and air paths, while a switch on the lever alerts the control box there was a filter change. The popup dialog box must be ticked "was the filter replaced Y/N" to continue. Aside from that action there are no other mechanisms present in the slot. Below the back screen in the larger part of the sensor housing everything there has to do with airflow, much of the plumbing has to do with the Hot-Wire Anemometer air mass sensor, similar to what we have in the Eberline 6A head. Three of the 6 wires from the sensor go to those mini coaxial plugs in the main connector, the other 3 to regular signal pins. Most probably those first 3 are sensor signals, while the other 3 are power to the sensor and presumably a preamp/line driver in the "nose cone". No magic here, just updated versions of 1980 tech. The magic is in the control box computer, and that's what the patent covers. Geo
Geo Dowell All Messages By This Member #202 Trying again with pics. These are mostly of the bottom part. Geo DSCN1065.JPG DSCN1064.JPG DSCN1054.JPG DSCN1054.JPG DSCN1053.JPG DSCN1052.JPG DSCN1063.JPG DSCN1062.JPG DSCN1061.JPG DSCN1059.JPG DSCN1057.JPG DSCN1055.JPG DSCN1056.JPG
Nick Andrews All Messages By This Member #203 Cool,? thanks.? ?Yeah I bet the block has some spring in it to clamp without crushing stuff.? toggle quoted message Show quoted text On Sat, Jun 18, 2022, 5:46 PM Geo Dowell <GEOelectronics@...> wrote: Trying again with pics. These are mostly of the bottom part. Geo
Dude All Messages By This Member #204 开云体育 Nick Looking at Geo Photo’s it lifts the card up and only seals around the vacuum flow disk. It may rely on a flexible cardboard card to get the seal. I would stick with cardboard or something flexible. It does seem to me thickness is too demanding but that would depend on the cam action. Dud ? From: [email protected] [mailto:[email protected]] On Behalf Of Nick Andrews Sent: Saturday, June 18, 2022 2:09 PM To: [email protected] Subject: Re: Alpha and Beta particle nuclear decay studies. Pictures of inside the IMPEX ALPHA head. ? I saw this picture before.? ?Were there others??? Dud, I figured there's a spec for the thickness of filter carriers with a safe range.? I was imagining that it would need to be a special thinner source disc to fit in there.? Was thinking a filter carrier might be made of thin plastic or kydex pieces to sandwich filter.? ?Pictures of the actual ones look like there's a gasket to seal it in.? ?An o-ring would be too thick,? so maybe a thin smear of permatex or other gasket material might work for that.? ? Maybe I can close the filter lever without the card in place and use feeler gauges to measure the closed dimension.? ? toggle quoted message Show quoted text On Mon, May 30, 2022, 2:07 PM Geo Dowell <GEOelectronics@...> wrote: 4 screws and the "nose cone" top part of the sensor housing separates. It has the sensor in it, hardwired with 6 wire umbilical cord. Sensor faces down towards the filter, and the lever mechanism that allows filters to be changed rotates the screened filter back downward to accommodate that. When the lever is rotated back to park/locked location, the filter back module cams up, pressing the filter home, blocking external light and air paths, while a switch on the lever alerts the control box there was a filter change. The popup dialog box must be ticked "was the filter replaced Y/N" to continue. Aside from that action there are no other mechanisms present in the slot. Below the back screen in the larger part of the sensor housing everything there has to do with airflow, much of the plumbing has to do with the Hot-Wire Anemometer air mass sensor, similar to what we have in the Eberline 6A head. Three of the 6 wires from the sensor go to those mini coaxial plugs in the main connector, the other 3 to regular signal pins. Most probably those first 3 are sensor signals, while the other 3 are power to the sensor and presumably a preamp/line driver in the "nose cone". No magic here, just updated versions of 1980 tech. The magic is in the control box computer, and that's what the patent covers. Geo
Dude All Messages By This Member #205 开云体育 …thickness ISN”T too demanding… Dud From: [email protected] [mailto:[email protected]] On Behalf Of Dude Sent: Saturday, June 18, 2022 5:23 PM To: [email protected] Subject: Re: Alpha and Beta particle nuclear decay studies. Pictures of inside the IMPEX ALPHA head. ? Nick Looking at Geo Photo’s it lifts the card up and only seals around the vacuum flow disk. It may rely on a flexible cardboard card to get the seal. I would stick with cardboard or something flexible. It does seem to me thickness is too demanding but that would depend on the cam action. Dud ? From: [email protected] [mailto:[email protected]] On Behalf Of Nick Andrews Sent: Saturday, June 18, 2022 2:09 PM To: [email protected] Subject: Re: Alpha and Beta particle nuclear decay studies. Pictures of inside the IMPEX ALPHA head. ? I saw this picture before.? ?Were there others??? Dud, I figured there's a spec for the thickness of filter carriers with a safe range.? I was imagining that it would need to be a special thinner source disc to fit in there.? Was thinking a filter carrier might be made of thin plastic or kydex pieces to sandwich filter.? ?Pictures of the actual ones look like there's a gasket to seal it in.? ?An o-ring would be too thick,? so maybe a thin smear of permatex or other gasket material might work for that.? ? Maybe I can close the filter lever without the card in place and use feeler gauges to measure the closed dimension.? ? toggle quoted message Show quoted text On Mon, May 30, 2022, 2:07 PM Geo Dowell <GEOelectronics@...> wrote: 4 screws and the "nose cone" top part of the sensor housing separates. It has the sensor in it, hardwired with 6 wire umbilical cord. Sensor faces down towards the filter, and the lever mechanism that allows filters to be changed rotates the screened filter back downward to accommodate that. When the lever is rotated back to park/locked location, the filter back module cams up, pressing the filter home, blocking external light and air paths, while a switch on the lever alerts the control box there was a filter change. The popup dialog box must be ticked "was the filter replaced Y/N" to continue. Aside from that action there are no other mechanisms present in the slot. Below the back screen in the larger part of the sensor housing everything there has to do with airflow, much of the plumbing has to do with the Hot-Wire Anemometer air mass sensor, similar to what we have in the Eberline 6A head. Three of the 6 wires from the sensor go to those mini coaxial plugs in the main connector, the other 3 to regular signal pins. Most probably those first 3 are sensor signals, while the other 3 are power to the sensor and presumably a preamp/line driver in the "nose cone". No magic here, just updated versions of 1980 tech. The magic is in the control box computer, and that's what the patent covers. Geo

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