Re: AW: Re: AW: Re: Aw: Re: [EVGRAY] Ferroresonance amplified by piezoelectric elements
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2018-10-02T17:10:25-05:00
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2018-10-03T06:47:55-07:00
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[1/3] Re: AW: Re: AW: Re: Aw: Re: [EVGRAY] Ferroresonance amplified by piezoelectric elements
2018-10-02T17:10:25-05:00
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Norman Wootan
<[email protected]>
Message-ID:
<[email protected]>
We substituted the planar, silver mica capacitors 680pf into the mini MRA very successfully. They mimic the piezo in an electronic circuit! On 10/2/2018 4:27 PM, SF [email protected] [EVGRAY] wrote: > > > Hi Mick, in other words Mica silver or Mica capacitors have the same > effect as piezo materials, what is cog? Because I with low frequencies > work do I need already capacities in uf area. Under Mica can I find > what. Greetings Sven > > Von meinem Samsung Gerät gesendet. > > > -------- Ursprüngliche Nachricht -------- > Von: "Mick [email protected] [EVGRAY]" <[email protected]> > Datum: 02.10.18 22:14 (GMT+01:00) > An: [email protected] > Betreff: Re: AW: Re: Aw: Re: [EVGRAY] Ferroresonance amplified by > piezoelectric elements > > Sven, > > Anytime one adds more capacitors Q drops as ESR increases so it works > better if one can use the piezo for both functions, if possible. Many > capacitors are also piezoelectric materials such as the mica and COG. > Lower frequencies do not matter as much. > > > On 10/2/2018 12:12 PM, SF [email protected] [EVGRAY] wrote: >> >> Hi Mick, so I could try in addition to the caps piezo elements for >> this purpose to turn, there is there an increase of the q value or >> did you only with piezo worked? >> >> >> >> Von meinem Samsung Gerät gesendet. >> >> >> -------- Ursprüngliche Nachricht -------- >> Von: "Mick [email protected] [EVGRAY]" <[email protected]> >> Datum: 02.10.18 18:00 (GMT+01:00) >> An: [email protected] >> Betreff: Re: Aw: Re: [EVGRAY] Ferroresonance amplified by >> piezoelectric elements >> >> Hi Sven >> >> Yes I have used the little piezo transformers and have also used >> disks in a tank circuit acting as the capacitance. On the >> transformers I was able to get the most gain by using sine waves as >> they like a clean signal without distortion components being of high >> Q at the designed frequency. Something I need to get back to in order >> to determine more facts. >> >> >> On 10/2/2018 5:37 AM, [email protected] [EVGRAY] wrote: >>> Hello Mick, >>> >>> Many thanks for the hints, unfortunately I can not find distribution >>> in Germany or I have to search again. >>> >>> Have you ever included piezo elements in a reactive circuit? >>> >>> regards >>> >>> Sven >>> *Gesendet:* Montag, 01. Oktober 2018 um 21:01 Uhr >>> *Von:* "Mick [email protected] [EVGRAY]" <[email protected]> >>> *An:* [email protected] >>> *Betreff:* Re: [EVGRAY] Ferroresonance amplified by piezoelectric >>> elements >>> >>> Sven >>> >>> Have a look here: >>> >>> http://steminc.com/ >>> >>> http://iopscience.iop.org/article/10.7567/JJAP.55.086702 >>> >>> On 10/1/2018 7:57 AM, [email protected] [EVGRAY] wrote: >>> >>> Hello everyone, is it possible to use resonant capacitors in the >>> case of FR transformer in addition to switching piezo elements >>> in parallel or do the thin elements hold over 400V? >>> >>> The MRA of Norman works with a large piezo element, >>> unfortunately I can not get something like this or I search >>> wrong via google. >>> >>> regards >>> >>> Sven >>> >> > >
[2/3] AW: Re: AW: Re: Aw: Re: [EVGRAY] Ferroresonance amplified by piezoelectric elements
2018-10-02T23:27:21+02:00
·
Sven Friedrich
<[email protected]>
Message-ID:
<[email protected]>
Hi Mick, in other words Mica silver or Mica capacitors have the same effect as piezo materials, what is cog? Because I with low frequencies work do I need already capacities in uf area. Under Mica can I find what. Greetings Sven Von meinem Samsung Gerät gesendet. -------- Ursprüngliche Nachricht -------- Von: "Mick [email protected] [EVGRAY]" <[email protected]> Datum: 02.10.18 22:14 (GMT+01:00) An: [email protected] Betreff: Re: AW: Re: Aw: Re: [EVGRAY] Ferroresonance amplified by piezoelectric elements Sven, Anytime one adds more capacitors Q drops as ESR increases so it works better if one can use the piezo for both functions, if possible. Many capacitors are also piezoelectric materials such as the mica and COG. Lower frequencies do not matter as much. On 10/2/2018 12:12 PM, SF [email protected] [EVGRAY] wrote: Hi Mick, so I could try in addition to the caps piezo elements for this purpose to turn, there is there an increase of the q value or did you only with piezo worked? Von meinem Samsung Gerät gesendet. -------- Ursprüngliche Nachricht -------- Von: "Mick [email protected] [EVGRAY]" <[email protected]> Datum: 02.10.18 18:00 (GMT+01:00) An: [email protected] Betreff: Re: Aw: Re: [EVGRAY] Ferroresonance amplified by piezoelectric elements Hi Sven Yes I have used the little piezo transformers and have also used disks in a tank circuit acting as the capacitance. On the transformers I was able to get the most gain by using sine waves as they like a clean signal without distortion components being of high Q at the designed frequency. Something I need to get back to in order to determine more facts. On 10/2/2018 5:37 AM, [email protected] [EVGRAY] wrote: Hello Mick, Many thanks for the hints, unfortunately I can not find distribution in Germany or I have to search again. Have you ever included piezo elements in a reactive circuit? regards Sven Gesendet: Montag, 01. Oktober 2018 um 21:01 Uhr Von: "Mick [email protected] [EVGRAY]" <[email protected]> An: [email protected] Betreff: Re: [EVGRAY] Ferroresonance amplified by piezoelectric elements Sven Have a look here: http://steminc.com/ http://iopscience.iop.org/article/10.7567/JJAP.55.086702 On 10/1/2018 7:57 AM, [email protected] [EVGRAY] wrote: Hello everyone, is it possible to use resonant capacitors in the case of FR transformer in addition to switching piezo elements in parallel or do the thin elements hold over 400V? The MRA of Norman works with a large piezo element, unfortunately I can not get something like this or I search wrong via google. regards Sven
[3/3] Re: AW: Re: AW: Re: Aw: Re: [EVGRAY] Ferroresonance amplified by piezoelectric elements
2018-10-03T06:47:55-07:00
·
Mick
<[email protected]>
Message-ID:
<[email protected]>
Sven, As far as I know yes they do. COG NPO capacitors are made of a very stable ceramic and are claimed not to be piezo electric but I have had problems with them being micro-phonic and have made them squeal so I believe them to be piezo. COG are cheaper so easy to prototype with but when you know your sizes that work buy some silver mica! http://www.avx.com/products/ceramic-capacitors/surface-mount/c0g-np0-dielectric/ On 10/2/2018 2:27 PM, SF [email protected] [EVGRAY] wrote: > > > > Hi Mick, in other words Mica silver or Mica capacitors have the same > effect as piezo materials, what is cog? Because I with low frequencies > work do I need already capacities in uf area. Under Mica can I find > what. Greetings Sven > > Von meinem Samsung Gerät gesendet. > > > -------- Ursprüngliche Nachricht -------- > Von: "Mick [email protected] [EVGRAY]" <[email protected]> > Datum: 02.10.18 22:14 (GMT+01:00) > An: [email protected] > Betreff: Re: AW: Re: Aw: Re: [EVGRAY] Ferroresonance amplified by > piezoelectric elements > > > > Sven, > > Anytime one adds more capacitors Q drops as ESR increases so it works > better if one can use the piezo for both functions, if possible. Many > capacitors are also piezoelectric materials such as the mica and COG. > Lower frequencies do not matter as much. > > > On 10/2/2018 12:12 PM, SF [email protected] [EVGRAY] wrote: >> >> >> Hi Mick, so I could try in addition to the caps piezo elements for >> this purpose to turn, there is there an increase of the q value or >> did you only with piezo worked? >> >> >> >> Von meinem Samsung Gerät gesendet. >> >> >> -------- Ursprüngliche Nachricht -------- >> Von: "Mick [email protected] [EVGRAY]" <[email protected]> >> Datum: 02.10.18 18:00 (GMT+01:00) >> An: [email protected] >> Betreff: Re: Aw: Re: [EVGRAY] Ferroresonance amplified by >> piezoelectric elements >> >> >> >> Hi Sven >> >> Yes I have used the little piezo transformers and have also used >> disks in a tank circuit acting as the capacitance. On the >> transformers I was able to get the most gain by using sine waves as >> they like a clean signal without distortion components being of high >> Q at the designed frequency. Something I need to get back to in order >> to determine more facts. >> >> >> On 10/2/2018 5:37 AM, [email protected] [EVGRAY] wrote: >>> >>> Hello Mick, >>> >>> Many thanks for the hints, unfortunately I can not find distribution >>> in Germany or I have to search again. >>> >>> Have you ever included piezo elements in a reactive circuit? >>> >>> regards >>> >>> Sven >>> >>> *Gesendet:* Montag, 01. Oktober 2018 um 21:01 Uhr >>> *Von:* "Mick [email protected] [EVGRAY]" <[email protected]> >>> *An:* [email protected] >>> *Betreff:* Re: [EVGRAY] Ferroresonance amplified by piezoelectric >>> elements >>> >>> >>> >>> >>> Sven >>> >>> Have a look here: >>> >>> http://steminc.com/ >>> >>> http://iopscience.iop.org/article/10.7567/JJAP.55.086702 >>> >>> >>> On 10/1/2018 7:57 AM, [email protected] [EVGRAY] wrote: >>> >>> >>> >>> Hello everyone, is it possible to use resonant capacitors in the >>> case of FR transformer in addition to switching piezo elements >>> in parallel or do the thin elements hold over 400V? >>> >>> The MRA of Norman works with a large piezo element, >>> unfortunately I can not get something like this or I search >>> wrong via google. >>> >>> regards >>> >>> Sven >>> >>> >>> >>> >>> >> > >
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