JP7183386B2 - 領域監視のための1d超音波変換器ユニット - Google Patents
領域監視のための1d超音波変換器ユニット Download PDFInfo
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- G—PHYSICS
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- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
- B06B1/0622—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements on one surface
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/24—Probes
- G01N29/2462—Probes with waveguides, e.g. SAW devices
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
- G01N29/262—Arrangements for orientation or scanning by relative movement of the head and the sensor by electronic orientation or focusing, e.g. with phased arrays
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/28—Details, e.g. general constructional or apparatus details providing acoustic coupling, e.g. water
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
- G01N29/348—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with frequency characteristics, e.g. single frequency signals, chirp signals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/06—Systems determining the position data of a target
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
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- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
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- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/54—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 with receivers spaced apart
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- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/22—Methods or devices for transmitting, conducting or directing sound for conducting sound through hollow pipes, e.g. speaking tubes
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/26—Sound-focusing or directing, e.g. scanning
- G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
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- G10K11/346—Circuits therefor using phase variation
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- G—PHYSICS
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- Remote Sensing (AREA)
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- Computer Networks & Wireless Communication (AREA)
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Description
さらなる超音波変換器が、欧州特許出願公開第0940801号明細書、並びに、Eric Konetzke等著「Phased array transducer for emitting 40 kHz air-coupled ultrasound without grating lobes」(IEEE International Ultrasonic Symposium, 2015年, 1~4頁)、及び、Jaeger等著「Air-coupled 40-kHz ultrasonic 2D-phased array based on a 3D-printed waveguide structure」(IEEE International Ultrasonic Symposium, 2017年, 1~4頁)、及び、Takahashi等著「Ultrasonic phased array sensor for electrical travel aids for visually impaired people」(Proceedings of the spie -The international society for optical engineering spie - vertical-cavity surface-emitting lasers XIII,第6794巻,2007年12月3日 67943V頁, ISSN: 0277-786X)、及び、Manufactoring Murata「Ultrasonic Sensor Application Manual」(Cat. No. S15E-5,2009年1月1日, URL;https://cdn-reichelt.de/documents/datenblatt/8400/ultraschall%20sensor.pdf, 3頁)から知られている。
Claims (8)
- ハウジング(14)と、少なくとも3つの超音波変換器(12)と、制御ユニットとを含む、領域検出のための1D超音波変換器ユニット(10)であって、
・前記制御ユニットは、各超音波変換器(12)を個別に駆動制御するように設計されており、
・前記ハウジングは、通信インタフェースを有しており、
・各超音波変換器(12)はそれぞれ、変換器ハウジング(18)と、前記変換器ハウジング(18)内に配置されている圧電体と、気体状の媒質への分離のために前記変換器ハウジング(18)の開放端部に配置されている音響分離層(20)とを有しており、かつ、前記ハウジング(14)内の固定の位置に配置されており、
・各超音波変換器(12)は、一致する動作周波数を有する音波を放射し及び/又は受け取るように設計されており、
・前記音波の前記動作周波数は、20kHz~400kHzの範囲にあり、
・互いに直接的に隣接する2つの超音波変換器(12)はそれぞれ、前記ハウジング(14)内で、最大10cm又は最大5cm又は最大2cmの、前記音響分離層(20)の中心から前記音響分離層(20)の中心までの間隔(A1)を有しており、
・前記1D超音波変換器ユニット(10)は、超音波変換器(12)毎に1つの音響チャネル(22)を有しており、
・各音響チャネル(22)は、入口開口部(24)と出口開口部(26)とを有しており、
・各音響分離層(20)には、厳密に前記複数の入口開口部のうちの1つ(24)が割り当てられており、
・前記入口開口部(24)は、直線に沿って配置されており、
・前記出口開口部(26)は、直線に沿って配置されており、
・前記出口開口部(26)はそれぞれ、前記ハウジングの壁部に配置されており、又は、前記音響チャネルは、前記ハウジングの前記壁部を貫通しており、
・複数の前記出口開口部(26)のうちの1つの出口開口部の中心から、直接的に隣接する出口開口部(26)の中心までの間隔(A2)は、最大で、気体状の媒質における波長に相当し、又は、最大で、気体状の媒質における波長の半分に相当し、
・直接的に隣接する2つの出口開口部(26)間の前記間隔(A2)はそれぞれ、対応する前記入口開口部(24)に割り当てられている前記超音波変換器(12)間の前記間隔(A1)よりも短く、
・前記入口開口部(24)の面積に対する前記出口開口部(26)の面積の比は、0.30~1.2の間の値を有しており、
・各音響チャネル(22)は、少なくとも、前記入口開口部(24)の直径に相当する長さを有している、
1D超音波変換器ユニット(10)において、
・前記ハウジング(14)は、表面での固定のための固定手段(11)を有しており、
・前記制御ユニットは、少なくとも部分的に前記ハウジング(14)内に配置されており、
・前記ハウジングは、可動の被覆装置(32)を有しており、前記被覆装置(32)は、すべての音響チャネル(22)の前記出口開口部(26)を閉鎖するように設計されており、
・すべての音響チャネル(22)の前記出口開口部(26)は、共通の平坦な面(E1)にある、
ことを特徴とする1D超音波変換器ユニット(10)。 - 前記入口開口部(24)の面積に対する前記出口開口部(26)の面積の比は、0.5~1.5の間又は0.9~1.1の間の値を有している、
請求項1に記載の1D超音波変換器ユニット(10)。 - 各音響チャネル(22)は、各超音波変換器(12)の前記音響分離層(20)から、割り当てられている前記音響チャネル(22)の前記出口開口部(26)までの長さ(L1)を有しており、前記長さ(L1)は、前記音響周波数の波長の8分の1の整数倍又は前記音響周波数の半波長の整数倍である、
請求項1又は2に記載の1D超音波変換器ユニット(10)。 - 各音響チャネル(22)は、金属若しくはプラスチックから成る、又は、金属若しくはプラスチックを含む、
請求項1から3までのいずれか1項に記載の1D超音波変換器ユニット(10)。 - 各超音波変換器(12)は、前記音響分離層(20)と前記変換器ハウジング(18)との間に音響減結合層を有している、
請求項1から4までのいずれか1項に記載の1D超音波変換器ユニット(10)。 - 前記制御ユニットは、完全に又は部分的に、前記ハウジング(14)内に配置されている、
請求項1から5までのいずれか1項に記載の1D超音波変換器ユニット(10)。 - 前記1D超音波変換器ユニット(10)の前記ハウジング(14)は、少なくともIP40保護等級に従って形成されている、
請求項1から6までのいずれか1項に記載の1D超音波変換器ユニット(10)。 - 前記通信インタフェースは、無線データ伝送用に構成されている、
請求項1から7までのいずれか1項に記載の1D超音波変換器ユニット(10)。
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DE102018006139.7A DE102018006139B3 (de) | 2018-08-03 | 2018-08-03 | 1D-Ultraschallwandler-Einheit für die Bereichsüberwachung |
DE102018006139.7 | 2018-08-03 | ||
PCT/EP2019/000164 WO2020025157A1 (de) | 2018-08-03 | 2019-05-23 | 1d-ultraschallwandler-einheit für die bereichsüberwachung |
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JP2021532691A JP2021532691A (ja) | 2021-11-25 |
JP7183386B2 true JP7183386B2 (ja) | 2022-12-05 |
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EP (1) | EP3807017B1 (ja) |
JP (1) | JP7183386B2 (ja) |
KR (1) | KR102520546B1 (ja) |
CN (1) | CN112566731B (ja) |
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DE102018006127B4 (de) | 2018-08-03 | 2021-07-08 | Pepperl+Fuchs Ag | 1D-Ultraschallwandler-Einheit für die Materialerfassung |
GB2617404B (en) * | 2022-04-08 | 2024-09-11 | Darkvision Tech Inc | Industrial ultrasonic inspection with sparse receive |
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TWI668442B (zh) * | 2014-10-17 | 2019-08-11 | 美商瓦里安半導體設備公司 | 薄片形成設備、用於測量熔體表面的薄片的厚度的系統及用於在薄片形成設備中測定材料界面的位置的方法 |
CN205944752U (zh) | 2016-08-28 | 2017-02-08 | 宁波奇奥电气科技集团有限公司 | 一种开关柜用的盖板 |
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2018
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2019
- 2019-05-23 CN CN201980046488.2A patent/CN112566731B/zh active Active
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WO2020025157A1 (de) | 2020-02-06 |
JP2021532691A (ja) | 2021-11-25 |
CN112566731B (zh) | 2022-03-22 |
KR20210024138A (ko) | 2021-03-04 |
DE102018006139B3 (de) | 2019-06-19 |
EP3807017A1 (de) | 2021-04-21 |
US11867805B2 (en) | 2024-01-09 |
US20210156994A1 (en) | 2021-05-27 |
EP3807017B1 (de) | 2022-05-04 |
KR102520546B1 (ko) | 2023-04-10 |
CN112566731A (zh) | 2021-03-26 |
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