US1875324A - Distbiot of coi - Google Patents
Distbiot of coi Download PDFInfo
- Publication number
- US1875324A US1875324A US1875324DA US1875324A US 1875324 A US1875324 A US 1875324A US 1875324D A US1875324D A US 1875324DA US 1875324 A US1875324 A US 1875324A
- Authority
- US
- United States
- Prior art keywords
- crystal
- frame member
- nodal point
- electrodes
- piezo
- 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 - Lifetime
Links
- 239000013078 crystal Substances 0.000 description 16
- 238000000576 coating method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000004020 conductor Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 241001446467 Mama Species 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004111 Potassium silicate Substances 0.000 description 1
- 229920001800 Shellac Polymers 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- OPIARDKIWVCIRZ-UHFFFAOYSA-N aluminum;copper Chemical compound [Al+3].[Cu+2] OPIARDKIWVCIRZ-UHFFFAOYSA-N 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 description 1
- 229940113147 shellac Drugs 0.000 description 1
- 235000013874 shellac Nutrition 0.000 description 1
- 239000004208 shellac Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 235000015424 sodium Nutrition 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/05—Holders; Supports
- H03H9/09—Elastic or damping supports
Definitions
- Another object of this invention is to provide a mounting for an electromechanical v1- electromechanical vibrator and the electrodes is employed for connecting it into circuit is substantially constant.
- Still another object of this invention is to provide a mounting for a mechanically vibratile element in which the element is supported 20 at its nodal point.
- a further object of this invention is to iezo electric element in which substantial y no restraining provide a mountingfor a following specification and the annexed claims.
- a plezo electric element or other electromechanical vibrator [of the first mode-"ofvi'bratien of the piezo is provided with a mounting in which the frictional resistance to the elements motion between the electrodes is reduced to a minimum by providing coatings, which serve as electrodes, of extremely light material. Greater precision in the operation of the elements is also obtained by suspending the element in its holder at a nodal point.
- Figure 1 is a perspective view of a preferred embodiment of this invention and Fig. 2 is a cross-sectional view inelevation along the line 2-2 of Fig. 1.
- erence numeral 1 indicates a base :of insulatingmateria'l.
- This base may be madeofany insulating material suchzas phenol :condensation products, dried wood impregnated with I sheliaesywaxes orrosins; hard rubberion vitll reous materials suchnas'quartzand glass.
- U-shaped supporting member 2 is positioned upon the b'ase lg, This member maybe made a of either 1 insulating 'material, 'sueh as" iused quartz, glass, hard -;rubber or similarf sub-' stances or may be made' ofmetals such :as
- A- cross mmeber 3. is attached to the extremities of the u shaped v member 2.
- The-Inember 3 maybe dispensed with and the cords [5,-6' and"75attached v directly to the basemember 1. 'lhe eord fiis attached to ascr'ew 13 which is'provided in the member 2 for maintaining thisoord undera certain degree of tension. "Th e 51 and"?
- Coatings 8 and 14 may consist of gold leaf cemented to the surface of the piezo electric element with cements such as shellac, sodium or potassium silicate or similar materials. Metals such as platinum may be sputtered against the surface of the piezo electric crystal and serve as very serviceable and permanent coatings, especially where piezo electric crystal elements of extreme accuracy and precision are required.
- a piezo electric crystal unit a piezo electric crystal, electrodes in contact with said crystal, a frame member, a taut flexible member attached to said frame member and to said crystal substantially at its fundamental nodal point, other flexible members attached to said frame member and embracing said crystal and its electrodes on opposite sides of its nodal point and maintained under substantially less tension than said taut flexible member, and means for adjusting the tension of said taut flexible member.
- a piezo electric crystal unit a piezo electric crystal having metallic films deposited on opposite faces thereof, a frame member, a taut flexible member attached to said frame member and to said crystal substantially at its fundamental nodal point, other flexible members attached to said frame member and embracing said crystal and its electrodes on opposite sides of its nodal point and maintained under substantially less tension than said taut flexible member, said flexible members being mounted for embracing and supporting in contiguous relation said crystal and said metallic films thereon deposited.
Description
Sept. 6, 1932. w BQWER ELECTROMECHANICAL VIBRAT OR MOUNTING Filed Jan. 50. 1929 .INVENTOR. W 6 693W,
BY t; A TORNEY Patented septr fi 1 932 2 wean 1a sown, or .wasnmoromnrsmie'r or-1001mm a I mac'raomacwrcan mama maxim Appllcationflled was so, LSexlal m. aaaz za. i v
to reduced to a minimum.
Another object of this invention is to provide a mounting for an electromechanical v1- electromechanical vibrator and the electrodes is employed for connecting it into circuit is substantially constant. I
Still another object of this invention is to provide a mounting for a mechanically vibratile element in which the element is supported 20 at its nodal point.
A further object of this invention is to iezo electric element in which substantial y no restraining provide a mountingfor a following specification and the annexed claims.
According to thls invention a plezo electric element or other electromechanical vibrator [of the first mode-"ofvi'bratien of the piezo is provided with a mounting in which the frictional resistance to the elements motion between the electrodes is reduced to a minimum by providing coatings, which serve as electrodes, of extremely light material. Greater precision in the operation of the elements is also obtained by suspending the element in its holder at a nodal point.
- In the drawing, Figure 1 is a perspective view of a preferred embodiment of this invention and Fig. 2 is a cross-sectional view inelevation along the line 2-2 of Fig. 1.
" ments,such as -silicate o'f or "potssmaintained taut with substantially no inter-.
U-shaped supporting member 2 is positioned upon the b'ase lg, This member maybe made a of either 1 insulating 'material, 'sueh as" iused quartz, glass, hard -;rubber or similarf sub-' stances or may be made' ofmetals such :as
aluminum; copper or bronze, suitable for brator'in which the area of contact of the electrical apparatus. A- cross mmeber 3. is attached to the extremities of the u shaped v member 2. The piezo 'electric elementA is supported by flexible cords 5, v6 and 7' which are attached" to the members2 and="3. These cords are preferably of silk although other materials "such as j wax impvegnated cotton may be us'ed. 5 The-Inember 3 maybe dispensed with and the cords [5,-6' and"75attached v directly to the basemember 1. 'lhe eord fiis attached to ascr'ew 13 which is'provided in the member 2 for maintaining thisoord undera certain degree of tension. "Th e 51 and"? arenot subjected to as great atension asis applied to the cord 6 since-these cords are employed to prevent the piezoelectricelementfrom turning. various'methods of at; tachingthecords to the'piezo electric element ymayibe'yemployed- For example the cords I may be T ielenaent or they my be held upon the element by means of oesiurm E s The cord fi -ispositioned t. he nodal o electric element.- This cord maytherefore'be ference to the free oscillation ofthe element The cords t5 and 7 are usually'not maintained under tension and consequently introduce no oscillation restraining forces of appreciable magnitude upon. the element; The piejzo gleetrio element 14.. is provided with: coatings s and 14 to which conductor's and 10 are nected The conductorsa andfllQ areeither soldered for cemented to the; coatings: ,8 and 5 Referring to the drawing in detail, the refe a ela f e serve as terminals for the conductors 9 and 10, respectively, whereby the element 4 is connected into circuit. Coatings 8 and 14 may consist of gold leaf cemented to the surface of the piezo electric element with cements such as shellac, sodium or potassium silicate or similar materials. Metals such as platinum may be sputtered against the surface of the piezo electric crystal and serve as very serviceable and permanent coatings, especially where piezo electric crystal elements of extreme accuracy and precision are required.
While I have described my invention in one of its preferred embodiments, I desire it to be understood that modifications may bemade and that I intend no limitations upon the invention other than those imposed by the scope of the annexed claims.
What I claim as new and desire to secure by Letters Patent of the United States is as follows I said crystal, a frame member, a taut flexible member attached to said frame member and to said crystal substantially at its fundamen tal nodal point, and other flexible members attached to said frame member and embracing said crystal and its electrodes on opposite sides of its nodal point and maintained under substantially no tension.
3. In a piezo electric crystal unit, a piezo electric crystal, electrodes in contact with said crystal, a frame member, a taut flexible member attached to said frame member and to said crystal substantially at its fundamental nodal point, other flexible members attached to said frame member and embracing said crystal and its electrodes on opposite sides of its nodal point and maintained under substantially less tension than said taut flexible member, and means for adjusting the tension of said taut flexible member.
4. In a piezo electric crystal unit, a piezo electric crystal having metallic films deposited on opposite faces thereof, a frame member, a taut flexible member attached to said frame member and to said crystal substantially at its fundamental nodal point, other flexible members attached to said frame member and embracing said crystal and its electrodes on opposite sides of its nodal point and maintained under substantially less tension than said taut flexible member, said flexible members being mounted for embracing and supporting in contiguous relation said crystal and said metallic films thereon deposited.
5. In a piezo electric crystal unit, a piezo
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1875324A true US1875324A (en) | 1932-09-06 |
Family
ID=3424117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US1875324D Expired - Lifetime US1875324A (en) | Distbiot of coi |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1875324A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2470609A (en) * | 1945-12-10 | 1949-05-17 | William C Elmore | Piezoelectric crystal |
| US3931388A (en) * | 1974-05-31 | 1976-01-06 | The United States Of America As Represented By The Secretary Of The Army | Crystal resonator housing configurations |
| US4502022A (en) * | 1982-03-30 | 1985-02-26 | Quartz & Electronique Alcatel | Support for an oscillator |
| US5767611A (en) * | 1995-04-12 | 1998-06-16 | Murata Manufacturing Co., Ltd. | Structure for supporting an oscillator |
| US20120321824A1 (en) * | 2011-06-14 | 2012-12-20 | Chief Land Electronic Co., Ltd. | Transducer module |
-
0
- US US1875324D patent/US1875324A/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2470609A (en) * | 1945-12-10 | 1949-05-17 | William C Elmore | Piezoelectric crystal |
| US3931388A (en) * | 1974-05-31 | 1976-01-06 | The United States Of America As Represented By The Secretary Of The Army | Crystal resonator housing configurations |
| US4502022A (en) * | 1982-03-30 | 1985-02-26 | Quartz & Electronique Alcatel | Support for an oscillator |
| US5767611A (en) * | 1995-04-12 | 1998-06-16 | Murata Manufacturing Co., Ltd. | Structure for supporting an oscillator |
| US20120321824A1 (en) * | 2011-06-14 | 2012-12-20 | Chief Land Electronic Co., Ltd. | Transducer module |
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