DE1794255U - PIEZOELECTRIC MICROPHONE CAPSULE WITH CONTINUOUSLY ADJUSTABLE FREQUENCY RESPONSE. - Google Patents

PIEZOELECTRIC MICROPHONE CAPSULE WITH CONTINUOUSLY ADJUSTABLE FREQUENCY RESPONSE.

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Publication number
DE1794255U
DE1794255U DE1959SC024592 DESC024592U DE1794255U DE 1794255 U DE1794255 U DE 1794255U DE 1959SC024592 DE1959SC024592 DE 1959SC024592 DE SC024592 U DESC024592 U DE SC024592U DE 1794255 U DE1794255 U DE 1794255U
Authority
DE
Germany
Prior art keywords
frequency response
continuously adjustable
adjustable frequency
microphone capsule
piezoelectric microphone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE1959SC024592
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
F & H Schumann Piezo Elek Sche
Original Assignee
F & H Schumann Piezo Elek Sche
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by F & H Schumann Piezo Elek Sche filed Critical F & H Schumann Piezo Elek Sche
Priority to DE1959SC024592 priority Critical patent/DE1794255U/en
Publication of DE1794255U publication Critical patent/DE1794255U/en
Expired legal-status Critical Current

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Description

GebrauehsmusterBeschreibun. Bee Gegenst,-=d der ist eine aCRenirotonkapsel) die sur Regelung des FreGuenzgaDgs alt einemvon außen verstellbaren Dampfungsfilter ausgestattet ist. Derartige Hikrofonkapseln, oft auch Filterzellen genannt ; sind invorschiedenon Ausfühyngsfomen boanst geworden* Diese be- sitzen joaoch 2ieist als'*."andler So :' attesalz- elemente)wodurch ihre Anwendbarkeit unter ungünstigen klimati- sehenBedingungen, insbesondere in eines tropischen lima mit hoherLuftfeuchtigkeit, sehr beschränkt ist. Die Ursache dasu, daß bieher schallomp2Rnzor mit Dämp2un30.-'L>Iltcr verwendetwurden, ist darin zu suchen da6 bei Bariumtitanat- Elementen üblicher Ayt ie piezoelektrische Druckonstante 9 die die Leerlanfspannung eines piesoeletrischon Generators be- , eines Gezierators be- stismt, sehr viel kleiner ist als die DrucKkonstante des Seig- notteoalzes,an sute daher eine Herabsetzung der Spannungab- abe durch BSrnpfungsfilter bei keramischen nikrofonen vermeiden und vielmehr darauf bedacht sein, die Eigenresonans des kandiere vollwirksam werden su lassen nd sie evtl. durch geeignete naßnanmen noch verstärken, um zu einer praktischen Terendungs moliKkeit für heramische Schallempfänger su gelangen. Solche resonanzbetonten nikroone eignen sich jedoeh in der Rogol nur für SpraßhübeXra und manche Sonderzwecke es sei denn, daß ein speziell dem Frequensang angepasster Bntzeyrungsverstär- ker dem Schallepfanger nachgeschaltet ird. , ;, esehaltet wird. Um den geschilderten Nachteil s : u vermeiden und dem Schallempfän- er eine grössere Empfindlichkeit tnd damit bessere Anpassungs- fähigkeit an die jeweiligen Arbeitsbedinusgcn su geben, ist für dieerfindungsgeaäBe nikrofonkapgcl ein Bleititanat-Bleisirkonat- Blement vorgesehen worden, dessen Druckkonatante einen bedeutend größeren Uert besitzt, als mit den verschiedenen Varianten üb- lichterBariuNtitanat-Eleaente erreicht werden ann< Sie relativ hohe'Snpfindlichkeit der Sloititanat-Bleiirknat- Elemente gestattet zuden eine weitere Steuerung, die sich bezUG- lich der kttel-md Sehlagfestigkeit einer Nikrofonkapel als Dh ; t1l1$ : ! : toUhä. ft $nJl11f4n hfilt. is ist 1m all$meinen b$1 piGo- ver » srlmt goor daß eiig =er unztämien d eis ;' de4t 01, ne Vovgeermz üoji woeu r-Ialit die Dö£omiet. tetob Aumh ergotzt ted, ekt deer vio oln fodo= « ee olaotisches", eo-Ctvxeh ein zieaeu xn, aee Mi aie (6) mit aQu Sea fe sta s (4) aa is-s f- es is M () SlsiesS nsö. m'i es dzo,. 3. er Yilolien denlialb e'beatana In eten so'hoben una dureh d-le dei5 regt"geuen die leitenden vläohon des tlomonbes gearw,-e- ', ro&on des ee zont-"U 0- 80 ma $e&'a e s. t ees. Sie A ( s @n n () n& s'sd Mi M e halteü die l, AnLA au-esa- as ab ab* raztt r, eh6ee aine die In der G-le : o-bta %. ve t-Iie be (, 13) vttb=deh lot-* novio eine den r2, inz Deo4", QI txzul dootplatto be (13>1 410 dt% Voh c40 tlitte deo hinau=beaete 14-estA mit lhrex ropt außen an Deel--äel all und in ein Gewiido in der Mltte'der "latto O : ino Dan Yndo ectlaft ete 4, ee- r"ieh zicht, aur3 der -aue einer-1 pvt"". 1) teLee seS.mener !?3eSsoss&-e'iter vfeh T@ e on » co : zei Und 01. U0r Q>Vi% Cen oine beztl=te reproduzif"rbavo lllte, veckei, be gato 3'o u--aeh der4t", 71m"U, *ae 1) 20mwg verredol, t ; al-oh dle Ztt-Ginander vlelfazh vor- lf , a die 13et, &g&can esag au : rou die doo ve-v*,-izd03* wovae4 @a en M . e es in ilt a ensm''Bm- . ül rdsaand reh e-am a-s- SQes eee& öasm* naob Allep=eh 4) 7 aad=ch daß de, e 19opplmssclied ) iei )-mA 8) gmse ä - aMt it-e aiel-eise im eil caeeneseasel-a'a afgs seen stellt. "a ala ein Bltle <t Usage pattern description Bee Gegenst, - = d that is one aCRenirotonkapsel) the sur regulation of the FreGuenzgaDg alt is equipped with an externally adjustable vapor filter. Such microphone capsules, often also called filter cells; are in the course of execution has become boanst * This sit joaoch 2ieist as '*. "andler So:' attesalz- elements) which makes their applicability under unfavorable climatic see conditions, especially in a tropical lima with high humidity, is very limited. The cause is that there is a sound fluff with dampening 30 .- 'L> Iltcr have been used, is to be looked for in the fact that barium titanate Elements of common ayt ie piezoelectric pressure constant 9 which load the no-load voltage of a piezoelectric generator , of a decorator stismt, is much smaller than the pressure constant of the seig- notteoalzes, therefore a reduction in the tension Avoid using B attenuation filters on ceramic microphones and rather be careful about the self-resonance of the candier Let them become fully effective and possibly through suitable naßnanmen still intensify in order to become a practical terendungs moliKkeit for heramical sound receivers get here. Such resonance-accentuated microphones are suitable in the Rogol only for spray strokes Xra and some special purposes unless that an amplification specially adapted to the frequency ker connected downstream of the sound receiver. ,;, it is held. In order to avoid the described disadvantage s: u and the sound receiver it has a greater sensitivity and thus better adaptation Giving ability to the respective working conditions is for the invention geaäBe nikrofonkapgcl a lead titanate lead zirconate Blement has been provided, the pressure constant of which one is significant has a greater Uert than with the various variants lichterBariuNtitanat-Eleaente can be achieved The relatively high sensitivity of sloititanate lead nat- Elements also allows a further control that relates to Lich the kttel-md impact resistance of a microphone capsule as Ie; t1l1 $:! : toUhä. ft $ nJl11f4n hfilt. is 1m all $ my b $ 1 piGo- ver »srlmt goor that own unzemias d ice; ' de4t 01, ne Vovgeermz üoji woeu r-Ialit die Dö £ omiet. tetob Aumh delighted ted, ekt deer vio oln fodo = «ee olaotic", eo-Ctvxeh a zieaeu xn, aee Wed aie (6) with aQu Sea fe sta s (4) aa is-s f- it is M () SlsiesS nsö. bad dzo ,. 3. er Yilolien denlialb e'beatana In eten so'hoben una dureh d-le dei5 regt "geuen the leading vlaohon des tlomonbes gearw, -e- ', ro & on des ee zont- "U 0- 80 ma $ e &'ae s. t ees. she A (s @nn () n &s'sd Wed M e hold the l, AnLA au-esa- as off away* raztt r, eh6ee aine die In der G-le: o-bta%. ve t-iie be (, 13) vttb = deh lot- * novio one den r2, inz Deo4 ", QI txzul dootplatto be (13> 1 410 dt% Voh c40 tlitte deo hinau = beaete 14-estA with lhrex rop on the outside of Deel - äel all and in a Gewiido in the mother'der "latto O: ino Dan Yndo ectlaft ete 4, ee- r "ieh zicht, aur3 der -aue one-1 pvt "". 1) teLee seS.mener !? 3eSsoss &-e'iter vfeh T @ e on »co: zei and 01. U0r Q> Vi% Cen oine beztl = te reproducif "rbavo lllte, veckei, be gato 3'o u - aeh der4t ", 71m" U, * ae 1) 20mwg verredol, t; al-oh dle Ztt-Ginander vlelfazh before- lf , a the 13et, & g & can esag au: rou die doo ve-v *, - izd03 * wovae4 @a en M. e es in ilt a ensm``Bm- . ül rdsaand deer e-am as- SQes eee & öasm * naob Allep = eh 4) 7 aad = ch that de, e 19opplmssclied ) iei) -mA 8) gmse Ä - aMt it-e aiel-eise in a hurry caeeneseasel-a'a afgs seen represents. "a ala Bltle <t

DE1959SC024592 1959-03-24 1959-03-24 PIEZOELECTRIC MICROPHONE CAPSULE WITH CONTINUOUSLY ADJUSTABLE FREQUENCY RESPONSE. Expired DE1794255U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1959SC024592 DE1794255U (en) 1959-03-24 1959-03-24 PIEZOELECTRIC MICROPHONE CAPSULE WITH CONTINUOUSLY ADJUSTABLE FREQUENCY RESPONSE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1959SC024592 DE1794255U (en) 1959-03-24 1959-03-24 PIEZOELECTRIC MICROPHONE CAPSULE WITH CONTINUOUSLY ADJUSTABLE FREQUENCY RESPONSE.

Publications (1)

Publication Number Publication Date
DE1794255U true DE1794255U (en) 1959-08-27

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Application Number Title Priority Date Filing Date
DE1959SC024592 Expired DE1794255U (en) 1959-03-24 1959-03-24 PIEZOELECTRIC MICROPHONE CAPSULE WITH CONTINUOUSLY ADJUSTABLE FREQUENCY RESPONSE.

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DE (1) DE1794255U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2413475A1 (en) 1973-03-20 1975-01-02 Raychem Ltd POLYMER COMPOUNDS FOR ELECTRICAL APPLICATIONS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2413475A1 (en) 1973-03-20 1975-01-02 Raychem Ltd POLYMER COMPOUNDS FOR ELECTRICAL APPLICATIONS

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