GB864025A - Improvements in or relating to piezoelectric pressure indicators - Google Patents
Improvements in or relating to piezoelectric pressure indicatorsInfo
- Publication number
- GB864025A GB864025A GB18657/57A GB1865757A GB864025A GB 864025 A GB864025 A GB 864025A GB 18657/57 A GB18657/57 A GB 18657/57A GB 1865757 A GB1865757 A GB 1865757A GB 864025 A GB864025 A GB 864025A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sealing
- contact
- housing
- piezo
- surrounding
- 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
Links
- 239000010453 quartz Substances 0.000 abstract 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 3
- 229910000831 Steel Inorganic materials 0.000 abstract 2
- 239000004020 conductor Substances 0.000 abstract 2
- 238000007789 sealing Methods 0.000 abstract 2
- 239000010959 steel Substances 0.000 abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 239000013078 crystal Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
- G01L23/08—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically
- G01L23/10—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically by pressure-sensitive members of the piezoelectric type
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
864,025. Electric indicating systems. SCHWEIZERISCHE LOKOMOTIVUND MASCHINENFABRIK. June 13, 1957 [June 14, 1956], No. 18657/57. Class 40 (1). [Also in Group XL (b)] A piezo-electric pressure transducer is provided with a sealing- chamber surrounding the contact device which is connected to the piezo crystal. As shown, the piezo-electric device comprises two semi - cylindrical quartz members 1, 2 enclosed in a steel sleeve 3 which is formed at one end into a sealing diaphragm 6 which prevents the pressure being measured from entering the space between the housing 5 and diaphragm. The quartz members are placed under initial stress by a steel cylinder 4 pressed into the sleeve. Contact is made with the separating plane of the semicylindrical bars by a thin copper sheet 8 which is connected by a conductor 9 passing through a quartz tube 10 to tubular metal contact-piece 11 in which the conductor is clamped by pin 24. A further contact-member 29 conveys the charge to the exterior of the housing. Surrounding contactmember 11 and sealed in a recess in the housing 5 is a sealing chamber comprising bushes 12, 13 within which are resilient highly-insulating sealing-rings 16, 17. The bushing and sealing- rings are of truncated conical form, as shown. A spring 22 surrounding the contact-member 11 causes a slidable sleeve 19 to compress sealing- ring 17 against the bush 27. In an alternative embodiment (Fig. 2, not shown) member 11 is cut short and member 19 extends beyond the bushes to provide an end contact.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH864025X | 1956-06-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB864025A true GB864025A (en) | 1961-03-29 |
Family
ID=4543439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18657/57A Expired GB864025A (en) | 1956-06-14 | 1957-06-13 | Improvements in or relating to piezoelectric pressure indicators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB864025A (en) |
-
1957
- 1957-06-13 GB GB18657/57A patent/GB864025A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1525781A (en) | Piezoelectric transducer unit and hydrophone assembly | |
| US3801838A (en) | Piezoelectric pressure transducer | |
| GB959453A (en) | Improvements relating to accelerometers | |
| GB1515555A (en) | Piezoelectric transducer | |
| US2507636A (en) | Piezoelectric means for converting pressure variations into potential variations | |
| SU471743A3 (en) | Piezoelectric contact microphone for monitoring the clock | |
| ES397051A1 (en) | Transducers having piezoelectric struts | |
| GB864025A (en) | Improvements in or relating to piezoelectric pressure indicators | |
| GB970101A (en) | A cyclically operating piezoelectric voltage source | |
| US2515867A (en) | Electrical means for operating fluid pressure indicating gauges and signaling devices | |
| US3672223A (en) | Pressure transducer | |
| ES353912A1 (en) | Pressure transducer | |
| GB910941A (en) | Gauge for measuring the displacement of a body | |
| GB1062513A (en) | Pressure transducer | |
| GB901195A (en) | Electromechanical transducers | |
| ES384759A1 (en) | Pressure indicator, especially for measuring pressure in diesel engines | |
| GB919413A (en) | Improvements in and relating to gauges | |
| GB847866A (en) | Improvements in piezo-electric transducers | |
| GB1264498A (en) | ||
| GB947063A (en) | Improvements in or relating to piezo-electric pressure transducers | |
| GB1279457A (en) | Transducer in the form of an oscillating element | |
| GB1061157A (en) | Improvements in or relating to the manufacture of an electrically polarised slotted toroid | |
| GB668406A (en) | Improvements in accelerometers responsive to mechanical movements | |
| GB1259402A (en) | ||
| GB747537A (en) | Improvements in or relating to transducer |