GB2201515A - Force-pressure sensor - Google Patents
Force-pressure sensor Download PDFInfo
- Publication number
- GB2201515A GB2201515A GB08703932A GB8703932A GB2201515A GB 2201515 A GB2201515 A GB 2201515A GB 08703932 A GB08703932 A GB 08703932A GB 8703932 A GB8703932 A GB 8703932A GB 2201515 A GB2201515 A GB 2201515A
- Authority
- GB
- United Kingdom
- Prior art keywords
- force
- pressure sensor
- sensor
- channel
- metal
- 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.)
- Withdrawn
Links
- 230000002411 adverse Effects 0.000 claims abstract description 3
- 239000002184 metal Substances 0.000 claims abstract description 3
- 229910052751 metal Inorganic materials 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 5
- 229910052755 nonmetal Inorganic materials 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 abstract description 2
- 229910052782 aluminium Inorganic materials 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract description 2
- 229920001971 elastomer Polymers 0.000 abstract description 2
- 239000000806 elastomer Substances 0.000 abstract description 2
- 150000001398 aluminium Chemical class 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
Abstract
The force-pressure sensor is of a robust construction to withstand adverse weather conditions and other harsh environments, and provides a proportional electrical output when a force or pressure is allied to it. The sensor comprises a piezoelectric cable element 16 sandwiched between two pieces of metal which as shown are in the form of an aluminium channel 11 and a bar or plate 13. All are held together by elastomer filling the space within the channel and between end blocks 12, 14. The block 12 carries a connector 15 transmitting the output of the piezoelectric cable 16. <IMAGE>
Description
FORCE-PRESSURE SENSOR
This invention relates to sensors for the purpose of detecting the presence of any physical body or object that may be directly or indirectly in contact with it.
The sensor is relatively small and inexpensive in comparison with alternative sensing devices and will detect a change of state when subjected to force or pressure. The sensor has a linear electrical output, is of a very simple construction, will withstand adverse weather conditions and other harsh environments.
The sensor itself functions as a pressure sensor, and enables the sensor to detect the presence of pressure, force or weight. The sensor comprises of a piezoelectric element, inserted between two pieces of material, metal or non-metal, which are held together by a bonding material with elastic properties. The sensor's electrical output is then amplified and processed to a desired output.
A specific embodiment of the invention will now be described by way of an example with reference to the accompanying drawing in which figure lshows a perspective component diagram of a sensor.
Referring to the drawing in Fig. 1 the sensor comprises of a piezoelectric element 16, e.g. in cable form, inserted between two pieces of material,the U-channel 11 and the bar 13, for example aluminium. The end blocks 12 and 14 are fixed in the U-channel 11 by screws 19, or rivets or other fixing methods, and are used to secure the piezoelectric element (in this example a cable) in its correct position, such that-it is straight and remains in contact with both the base of the bar 13 and the U-channel 11. Block 12 has a connector 15 to enable the electrical signal to be accessed. The remaining space confined by 11,12,13 and 14 is filled with an elastomer.
Claims (4)
1 A force-pressure sensor comprising of a piezoelectric element, inserted between two pieces of material, metal or non-metal, which are held together by a bonding material with elastic properties.
2 A force-pressure sensor as claimed in Claim 1, wherein the length, of the force-pressure sensor, is not restricted.
3 A force-pressure sensor as claimed in Claim 1 or
Claim 2, wherein robust means can withstand adverse weather conditions and other harsh environments.
4 A force-pressure sensor substantially as described herein with reference to Figure 1 of the accompanying drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08703932A GB2201515A (en) | 1987-02-19 | 1987-02-19 | Force-pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08703932A GB2201515A (en) | 1987-02-19 | 1987-02-19 | Force-pressure sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8703932D0 GB8703932D0 (en) | 1987-03-25 |
| GB2201515A true GB2201515A (en) | 1988-09-01 |
Family
ID=10612611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08703932A Withdrawn GB2201515A (en) | 1987-02-19 | 1987-02-19 | Force-pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2201515A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1986000996A1 (en) * | 1984-07-18 | 1986-02-13 | Rudiger Benkendorf | Movement detection apparatus |
| WO1986003584A1 (en) * | 1984-12-10 | 1986-06-19 | Pfister Gmbh | Force measuring device |
-
1987
- 1987-02-19 GB GB08703932A patent/GB2201515A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1986000996A1 (en) * | 1984-07-18 | 1986-02-13 | Rudiger Benkendorf | Movement detection apparatus |
| WO1986003584A1 (en) * | 1984-12-10 | 1986-06-19 | Pfister Gmbh | Force measuring device |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8703932D0 (en) | 1987-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5527111A (en) | Contact temperature sensor | |
| US5501111A (en) | Force sensor systems especially for determining dynamically the axle load, speed, wheelbase and gross weight of vehicles | |
| EP0376093A3 (en) | Force transducer for measuring tension and compression forces | |
| EP1061353A3 (en) | Materials testing | |
| DE3665400D1 (en) | Implantable intracranial pressure sensor | |
| DE59201937D1 (en) | Strain measurement sensor. | |
| ES2017532B3 (en) | NOMINAL VALUE TRANSMITTER | |
| KR830009468A (en) | Plug installation device | |
| EP1355135A3 (en) | Fluid gauging apparatus using magnetostriction and a stick gauge | |
| US4738146A (en) | Piezoresistive force-measuring element and its use for determining forces acting on a component | |
| EP0496956A3 (en) | Transfer element for force or moment measuring devices | |
| EP0373334A3 (en) | Measurement device for the axial force of a drawbar coupling | |
| US4454765A (en) | Extended range pressure transducers | |
| GB2211280A (en) | Joystick | |
| EP0521114A1 (en) | Multi-magnet long stroke sensor. | |
| RU92016251A (en) | DEVICE FOR MEASURING THE DEFORMATION OF A CONSTRUCTIVE ELEMENT | |
| US4079625A (en) | Probing device for investigation of the earth | |
| GB2201515A (en) | Force-pressure sensor | |
| SE8204218L (en) | Force transducer spring suspension - achieves desired spring constant and rigidity using thin section carrying conductor, thicker webs | |
| KR20010051369A (en) | High-precision pressure sensor | |
| US4433586A (en) | Electronic cable load gauge | |
| GB2186984A (en) | Torque measuring device having two load cells | |
| US6053051A (en) | Compressive force detecting sensor | |
| KR20030070162A (en) | Method for measuring of distance deformation by using a pressure sensor and an apparatus therefor | |
| SU823003A1 (en) | Small-sized dynamometric apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |