EP3359937A1 - Sensor und verfahren zur messung eines drucks - Google Patents
Sensor und verfahren zur messung eines drucksInfo
- Publication number
- EP3359937A1 EP3359937A1 EP16779070.8A EP16779070A EP3359937A1 EP 3359937 A1 EP3359937 A1 EP 3359937A1 EP 16779070 A EP16779070 A EP 16779070A EP 3359937 A1 EP3359937 A1 EP 3359937A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sensor
- outer electrode
- base body
- internal electrodes
- pressure
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 14
- 239000000463 material Substances 0.000 claims abstract description 43
- 230000003321 amplification Effects 0.000 claims abstract description 15
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 15
- 238000011156 evaluation Methods 0.000 claims description 24
- 230000002787 reinforcement Effects 0.000 claims description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910052451 lead zirconate titanate Inorganic materials 0.000 claims description 4
- SWELZOZIOHGSPA-UHFFFAOYSA-N palladium silver Chemical compound [Pd].[Ag] SWELZOZIOHGSPA-UHFFFAOYSA-N 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 2
- 238000004544 sputter deposition Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 7
- 230000010287 polarization Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000005684 electric field Effects 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 239000010453 quartz Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 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
- G01L1/18—Measuring force or stress, in general using properties of piezo-resistive materials, i.e. materials of which the ohmic resistance varies according to changes in magnitude or direction of force applied to the material
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0038—Force sensors associated with force applying means applying a pushing force
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/02—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers, electric circuits therefor, e.g. bridges, amplifiers or signal conditioning
- G01L9/06—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers, electric circuits therefor, e.g. bridges, amplifiers or signal conditioning of piezo-resistive devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/08—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of piezoelectric devices, i.e. electric circuits therefor
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/30—Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors
- H10N30/302—Sensors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/50—Piezoelectric or electrostrictive devices having a stacked or multilayer structure
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/80—Constructional details
- H10N30/85—Piezoelectric or electrostrictive active materials
- H10N30/853—Ceramic compositions
- H10N30/8548—Lead-based oxides
- H10N30/8554—Lead-zirconium titanate [PZT] based
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/80—Constructional details
- H10N30/87—Electrodes or interconnections, e.g. leads or terminals
- H10N30/877—Conductive materials
Definitions
- the present invention relates to a sensor. It is a sensor that measures a pressure or a mechanical stress with the help of the piezoelectric effect. The pressure acting on the sensor is converted into an electric charge flow. This property can be applied to pressures
- the present invention relates to a method for measuring a pressure.
- Sensors based on piezoelectric materials such as
- monolithic piezoelectric sensor 101 This has a monolithic body 102, which consists of a homogeneous layer of a pressure-sensitive material. On an upper side surface 109 and a lower side surface 110 of the main body 102, an outer electrode 105, 108 are arranged, so that the layer of pressure-sensitive material between the outer electrodes 105, 108 is located.
- the outer electrodes 105, 108 are used for tapping at
- the pressure to be measured acts directly on the external electrodes 105, 108.
- the outer electrodes 105, 108 must be covered with insulating layers to prevent the formation of
- the outer electrodes 105, 108 have a metallic material that can be manufactured with reasonable effort only with insufficient flatness. The unevenness on the surfaces 106, 107 can lead to measurement inaccuracies. In addition, the metallic outer electrodes 105, 108 are resistant
- Object of the present invention is therefore to provide an improved sensor, which makes it possible to overcome at least one of the above-mentioned disadvantages. Another object is to provide an improved method for
- a sensor according to the present claim 1 It is proposed a sensor having a base body, wherein the main body is a piezoelectric
- the piezoelectric material and at least two arranged in the piezoelectric material internal electrodes.
- the at least two internal electrodes are arranged in the piezoelectric material such that between the at least two
- the sensor may in particular be a pressure sensor. Accordingly, the sensor may be configured to measure a pressure acting on the body.
- the internal electrodes can be used as "in the
- piezoelectric material arranged "when they are sandwiched between two layers of piezoelectric
- each inner electrode To be covered by the piezoelectric material. A side
- a surface that abuts an outer electrode may be free of the piezoelectric material.
- a pressurization side surface of the body is a
- the main body can also have a plurality of side surfaces provided for pressurizing.
- the sensor can have any number of internal electrodes.
- the sensor can have more than two
- the inner electrodes may be divided into first inner electrodes contacted with a first outer electrode and second inner electrodes contacted with a second outer electrode, wherein the number of first and second inner electrodes need not be equal.
- the sensor with internal electrodes arranged in the piezoelectric material allows the above
- the for the Pressurized side surface provided may consist of the piezoelectric material.
- the piezoelectric material can under constant pressure swing load have a much higher load capacity than a metallic material, so that the life of the sensor is increased. Furthermore, the piezoelectric material can be made with a large flatness, so that the for the
- the output signal generated by the sensor can be influenced as desired by a variation in the number of internal electrodes.
- the sensor may further include a first outer electrode and a second outer electrode. Each of the at least two internal electrodes may be connected to the first external electrode or the second external electrode.
- Outer electrode may be on a first side surface of
- the second outer electrode may be arranged on a second side surface of the main body. Neither the first side surface nor the second
- Side surface can be provided for pressurization be. Accordingly, they differ from the side surface provided for the pressurization and are arranged in particular perpendicular to this side surface.
- the first and second side surfaces may be one another
- the first outer electrode may be arranged perpendicular to the at least two inner electrodes.
- the second outer electrode may be perpendicular to the at least two inner electrodes
- the provided for pressurizing side surface of the body can be parallel to the at least two
- Internal electrodes may be arranged. Accordingly, the pressure preferably exerts a maximum force on this side surface.
- the sensor may further include one with the at least two
- Internal electrodes have associated evaluation unit, which is designed to determine the pressure acting on the base body pressure.
- the at least two can
- the evaluation unit is configured to one between the at least two
- the evaluation unit can also be designed, one fitting between the at least two internal electrodes To measure tension and determine therefrom the pressure acting on the body.
- the senor may be configured such that the current intensity or the
- acting pressure of electrical signal is particularly high.
- a high voltage results in a small number of internal electrodes.
- a high current results in a large number of internal electrodes.
- the piezoelectric body may comprise a lead zirconate titanate ceramic.
- the piezoelectric body may comprise a lead zirconate titanate ceramic.
- Piezoelectric bodies have a different piezoelectric material, such as a piezoelectric quartz.
- the internal electrodes may comprise silver, silver-palladium or copper or one of these
- the first and the second outer electrode may include or consist of a partially glass-containing Einbrandmetallmaschine of silver, silver-palladium or copper.
- the first and second outer electrodes may further comprise a
- Sputter layer of CuAg or CrNiAg have.
- the senor may be a
- the mechanical amplification system on the provided for pressurizing side surface of the Basic body is arranged.
- the sensor may comprise a second mechanical amplification system disposed on the side surface corresponding to that for the
- the mechanical reinforcement system may include a first portion attached to the base body and a second portion
- the present invention relates
- Invention a method for measuring a pressure.
- a method for measuring a pressure with a sensor is proposed, wherein the sensor has a main body which comprises a piezoelectric material, at least two arranged in the piezoelectric material
- Internal electrodes is connected to the first outer electrode or the second outer electrode, wherein the first
- outside electrode disposed on a first side surface of the base body, wherein the second outer electrode is disposed on a second side surface of the base body, and wherein the base body further comprises a third side surface
- the pressure to be measured is exerted on the third side surface.
- the pressure to be measured is exerted on a side surface of the main body which is free of electrodes.
- the third side surface provided for the pressurization may consist of the piezoelectric material.
- the piezoelectric material can under constant pressure swing load have a much higher load capacity than a metallic material, so that the
- Piezoelectric material are manufactured with a large flatness, so that provided for the pressurization side surface is free of bumps and no
- the method may comprise the step of determining the pressure acting on the base body on the basis of a current intensity measured by the evaluation unit or on the basis of a voltage measured by the evaluation unit.
- a mechanical amplification system On the side surface on which the pressure is exerted, a mechanical amplification system may be arranged.
- the mechanical reinforcement system may be configured such that a pressure acting on the mechanical reinforcement system deforms it, transferring the deformation of the mechanical reinforcement system into a deformation of the base body. In particular, the body can thereby be pulled apart or compressed.
- mechanical reinforcement system may be designed such that a pressure exerted on the reinforcing system pressure leads to a deformation of the base body, which is ten times greater than the deformation, which would undergo the body, if the same pressure directly on the
- the mechanical amplification system can be any mechanical amplification system.
- the mechanical reinforcement system may include a first portion attached to the base body and a second portion spaced apart from the base member
- Basic body is arranged, have.
- the second region can be moved relative to the main body.
- Figure 1 shows one known in the art
- Figure 2 shows a first embodiment of a sensor
- Figure 3 shows a schematic representation of the
- FIG. 4 shows a second exemplary embodiment of a
- Figure 5 shows a third embodiment of a
- FIG. 2 shows a sensor 1 according to a first embodiment
- the sensor 1 has a main body 2, which has a piezoelectric material 13.
- Internal electrodes 4 are arranged.
- the internal electrodes 3, 4 are each between layers of the piezoelectric
- the first internal electrodes 3 are provided with a first one
- Outer electrode 5 is arranged on a first side surface 6 of the main body 2.
- the first side surface 6 of the base body 2 and the first outer electrode 5 are perpendicular to the inner electrodes 3, 4. Furthermore, the first inner electrodes 3 with respect to a second outer surface 7, which is opposite to the first side surface 6, set back.
- a second outer electrode 8 is arranged on the second side surface 7, .
- the first internal electrodes 3 are not
- the second internal electrodes 4 are connected to the second
- External electrode 8 contacted electrically.
- Internal electrodes 4 are set back from the first side surface 6 and accordingly are not electrically connected to the first outer electrode 5.
- the main body 2 also has at least one side surface 9, 10, which is provided for pressurization.
- the direction from which the pressure acts on the base body 2 is marked in FIG. 1 by two corresponding arrows.
- the side surface 9, 10 provided for pressurizing extends parallel to the inner electrodes 3, 4.
- an upper side surface 9 and a lower side surface 10 are provided for the pressurization.
- D ⁇ 33 ⁇ E + d 33 (2)
- s indicates the mechanical expansion of the main body 2
- D indicates the shift density
- E indicates the electrical
- T is the on the
- d indicates the piezoelectric constant of the piezoelectric material 13 of the
- Dielectric constant and S33 indicates the compliance. It is further assumed in equations (1) and (2) that the print axis, the polarization axis and the
- Detection axis respectively match and lie in the stacking direction S, which is also referred to here as the 33 direction. If now the electric field generated is measured, the pressure acting on the main body 2 can be calculated therefrom. To measure this field, either a voltage applied to the outer electrodes 5, 8 or a voltage
- Polarization direction 12 of the piezoelectric material 13 under the action of a pressure changes.
- Section i shows the polarization without pressure and section ii shows the polarization with applied pressure.
- FIG. 4 shows a possible structure for pressure measurement with the aid of the sensor 1, wherein here a sensor 1 according to a second exemplary embodiment is used.
- the sensor 1 according to the second embodiment differs from the sensor 1 according to the first embodiment in the number of the first and second internal electrodes 3, 4.
- the sensor 1 is connected to an electronic evaluation unit 11. According to the embodiment shown in Figure 4, the first outer electrode 5 and the second outer electrode 8 via the electronic
- Evaluation unit 11 contacted with each other electrically.
- a pressure acts on the main body 2
- a current flows from the first outer electrode 5 via the evaluation unit 11 to the second outer electrode 8.
- the evaluation unit 11 is designed to measure the current intensity of this current. From this measurement, the pressure acting on the base body 2 pressure can be calculated.
- the first outer electrode 5 and the second outer electrode 8 are not connected to one another via the electronic evaluation unit 11
- the evaluation unit 11 can determine a voltage applied between the two outer electrodes 5, 8 and from this measured value to the
- the sensors 1 described here with internal electrodes 3, 4 arranged in the basic body 2 have considerable advantages over the monolithic sensors 101 shown in FIG. In particular, the sensors 1 are such
- Side surface 6, 7 acts, on which the outer electrodes 5, 8 are located.
- the provided for pressurizing side surfaces 9, 10 consist of an electric
- Be provided side surfaces, so a part of the surface would be used for electrical contacting of the outer electrodes.
- the side surface provided for pressurizing is made of a piezoelectric material 13, it can be made with a high flatness, resulting in
- a piezoelectric material 13 can give a high accuracy of measurement.
- Surfaces of a piezoelectric material 13 can be manufactured with less effort in a greater flatness than would be possible for metallic surfaces. Further, the piezoelectric materials 13 prove to be very resistant to pressure swing loads, so that a side surface made of a piezoelectric material 13 can increase the life of the sensor 1.
- Another advantage of the sensor described herein is its high design freedom. Since the number of internal electrodes can be changed as desired, the output charge dissipated via the internal electrodes or the voltage applied between the internal electrodes can be adjusted as desired. Of the
- n indicates the number of piezoelectric layers.
- Q n indicates the charge output of the sensor 1 with n on piezoelectric layers.
- Qo gives the charge output of a monolithic sensor 101 without integrated
- U n indicates the open-circuit voltage applied between the outer electrodes 5, 8 of the sensor 1 with n piezoelectric layers when the outer electrodes 5, 8 are not short-circuited with each other.
- Uo gives the no-load voltage between the
- External electrodes 105, 108 of the corresponding monolithic sensor 101 at. E n indicates the output energy of the sensor 1 with n piezoelectric layers which are proportional to the
- Product is from open circuit voltage and charge output. Eo indicates the output energy of the monolithic sensor 101.
- Amount of current to be made of the output current is therefore a sensor 1 with many internal electrodes 3, 4th
- a sensor 1 with a small number of internal electrodes 3, 4 is advantageous, since in this way a maximum sensitivity can be achieved.
- Figure 5 shows a third embodiment of a sensor 1.
- the sensor 1 has, in contrast to the sensors 1 according to
- a mechanical amplification system 14 is provided in the first and second embodiments.
- the mechanical amplification system 14 is provided in the first and second embodiments.
- Reinforcement system 14 makes it possible to amplify a pressure applied to the sensor 1.
- the mechanical amplification system 14 has
- the frusto-conical element 15 is glued to the upper side surface 9.
- the frusto-conical member 15 has a first portion 16 secured to the upper side surface 9.
- the first region 16 is an edge region of the frusto-conical element 15.
- the frusto-conical element 15 further has a second region 17 which is spaced from the upper side surface.
- the second area 17 may be to the
- Base body 2 are moved towards or away from the main body 2. If a force is applied to the second area 17,
- the first region 16 is stretched in a radial direction to the outside.
- the main body 2 can be pulled apart.
- the mechanical reinforcement system 14 is constructed so that a pressure acting on the reinforcement system 14 to a deformation of the mechanical
- Reinforcement system 14 is attached to the upper side surface 9, causes the deformation of the reinforcing system 14, that the main body 2 is pulled apart or compressed.
- the reinforcement system 14 may be the deformation of the Base body 2 increase by, for example, ten times over the deformation that the base body 2 would experience when the force acts directly on the base body 2.
- Reinforcement system 14 attached to the upper side surface 9, i. on a side surface which is free of the outer electrodes 5, 8. In this way it can be ensured that the outer electrodes 5, 8 not by the mechanical
- Reinforcement system 14 can be damaged.
- a second mechanical amplification system 14 is further arranged, which in the
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Measuring Fluid Pressure (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015117203.8A DE102015117203A1 (de) | 2015-10-08 | 2015-10-08 | Drucksensor |
PCT/EP2016/074082 WO2017060478A1 (de) | 2015-10-08 | 2016-10-07 | Sensor und verfahren zur messung eines drucks |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3359937A1 true EP3359937A1 (de) | 2018-08-15 |
Family
ID=56851621
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16758220.4A Withdrawn EP3359936A1 (de) | 2015-10-08 | 2016-09-01 | Drucksensor und verfahren zur messung eines drucks |
EP16779070.8A Pending EP3359937A1 (de) | 2015-10-08 | 2016-10-07 | Sensor und verfahren zur messung eines drucks |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16758220.4A Withdrawn EP3359936A1 (de) | 2015-10-08 | 2016-09-01 | Drucksensor und verfahren zur messung eines drucks |
Country Status (7)
Country | Link |
---|---|
US (2) | US10677668B2 (de) |
EP (2) | EP3359936A1 (de) |
JP (2) | JP6622400B2 (de) |
KR (1) | KR102046270B1 (de) |
CN (2) | CN116046223A (de) |
DE (2) | DE102015117203A1 (de) |
WO (2) | WO2017060012A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109141710A (zh) * | 2018-07-05 | 2019-01-04 | 西安电子科技大学 | 一种压电陶瓷片应力测量方法及测量装置 |
AT523510B1 (de) * | 2020-01-29 | 2021-10-15 | Piezocryst Advanced Sensorics | Strukturiertes, piezoelektrisches Sensorelement |
KR102573040B1 (ko) * | 2021-08-20 | 2023-08-31 | 에이티아이 주식회사 | 시료 표면의 범프 결합 강도 측정 장치 |
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-
2015
- 2015-10-08 DE DE102015117203.8A patent/DE102015117203A1/de active Pending
-
2016
- 2016-09-01 JP JP2018518505A patent/JP6622400B2/ja active Active
- 2016-09-01 US US15/767,071 patent/US10677668B2/en active Active
- 2016-09-01 WO PCT/EP2016/070644 patent/WO2017060012A1/de active Application Filing
- 2016-09-01 EP EP16758220.4A patent/EP3359936A1/de not_active Withdrawn
- 2016-10-07 EP EP16779070.8A patent/EP3359937A1/de active Pending
- 2016-10-07 KR KR1020187012022A patent/KR102046270B1/ko active IP Right Grant
- 2016-10-07 WO PCT/EP2016/074082 patent/WO2017060478A1/de active Application Filing
- 2016-10-07 DE DE202016008592.2U patent/DE202016008592U1/de active Active
- 2016-10-07 US US15/767,098 patent/US10928257B2/en active Active
- 2016-10-07 CN CN202310174957.7A patent/CN116046223A/zh active Pending
- 2016-10-07 CN CN201680058279.6A patent/CN108139281A/zh active Pending
- 2016-10-07 JP JP2018517751A patent/JP6619512B2/ja active Active
Also Published As
Publication number | Publication date |
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JP2018529974A (ja) | 2018-10-11 |
WO2017060012A1 (de) | 2017-04-13 |
JP6622400B2 (ja) | 2019-12-18 |
DE102015117203A1 (de) | 2017-04-13 |
KR102046270B1 (ko) | 2019-11-18 |
US20180292272A1 (en) | 2018-10-11 |
KR20180102050A (ko) | 2018-09-14 |
EP3359936A1 (de) | 2018-08-15 |
JP2018529971A (ja) | 2018-10-11 |
US20180299334A1 (en) | 2018-10-18 |
CN108139281A (zh) | 2018-06-08 |
US10677668B2 (en) | 2020-06-09 |
US10928257B2 (en) | 2021-02-23 |
WO2017060478A1 (de) | 2017-04-13 |
CN116046223A (zh) | 2023-05-02 |
JP6619512B2 (ja) | 2019-12-11 |
DE202016008592U1 (de) | 2018-08-23 |
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