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1. WO2019004179 - CIRCUIT AND METHOD FOR DETECTING PRESSURE SIGNAL WITH SIGNAL DUE TO PYROELECTRICITY IN PIEZOELECTRIC MATERIAL BEING SUPPRESSED

Publication Number WO/2019/004179
Publication Date 03.01.2019
International Application No. PCT/JP2018/024134
International Filing Date 26.06.2018
IPC
G01L 1/16 2006.1
GPHYSICS
01MEASURING; TESTING
LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
1Measuring force or stress, in general
16using properties of piezo-electric devices
CPC
G01D 1/04
GPHYSICS
01MEASURING; TESTING
DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
1Measuring arrangements giving results other than momentary value of variable, of general application
04giving integrated values
G01D 1/10
GPHYSICS
01MEASURING; TESTING
DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
1Measuring arrangements giving results other than momentary value of variable, of general application
10giving differentiated values
G01L 1/16
GPHYSICS
01MEASURING; TESTING
LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
1Measuring force or stress, in general
16using properties of piezo-electric devices
G01L 9/085
GPHYSICS
01MEASURING; TESTING
LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
9Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements
08by making use of piezo-electric devices ; , i.e. electric circuits therefor
085with temperature compensating means
G06F 2203/04105
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
2203Indexing scheme relating to G06F3/00 - G06F3/048
041Indexing scheme relating to G06F3/041 - G06F3/045
04105Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position
G06F 3/0418
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01Input arrangements or combined input and output arrangements for interaction between user and computer
03Arrangements for converting the position or the displacement of a member into a coded form
041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
0416Control or interface arrangements specially adapted for digitisers
0418for error correction or compensation, e.g. based on parallax, calibration or alignment
Applicants
  • ダンクック ユニバーシティ チョンアン キャンパス インダストリー アカデミック コーポレーション ファンデーション DANKOOK UNIVERSITY CHEONAN CAMPUS INDUSTRY ACADEMIC COOPERATION FOUNDATION [KR]/[KR] (AE, AG, AM, AO, AU, AZ, BA, BB, BF, BH, BJ, BN, BR, BW, BY, BZ, CA, CF, CG, CI, CL, CM, CO, CR, CU, DJ, DM, DO, DZ, EC, EG, GA, GD, GE, GH, GM, GN, GQ, GT, GW, HN, ID, IL, IN, IR, JO, KE, KG, KH, KM, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LT, LY, MA, MD, ME, MG, ML, MN, MR, MW, MX, MY, MZ, NA, NE, NG, NI, NZ, OM, PA, PE, PG, PH, QA, RU, RW, SA, SC, SD, SG, SL, SN, ST, SV, SY, SZ, TD, TG, TH, TJ, TM, TN, TT, TZ, UA, UG, UZ, VC, VN, ZA, ZM, ZW)
  • ダイキン工業株式会社 DAIKIN INDUSTRIES, LTD. [JP]/[JP]
Inventors
  • キム ヒョンシク KIM, Hyunsik
  • 金村 崇 KANEMURA, Takashi
  • 小谷 哲浩 KODANI, Tetsuhiro
  • ハン カンヨン HAN, Kwan-Young
Agents
  • 特許業務法人三枝国際特許事務所 SAEGUSA & PARTNERS
Priority Data
10-2017-008057926.06.2017KR
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) CIRCUIT AND METHOD FOR DETECTING PRESSURE SIGNAL WITH SIGNAL DUE TO PYROELECTRICITY IN PIEZOELECTRIC MATERIAL BEING SUPPRESSED
(FR) CIRCUIT ET PROCÉDÉ DE DÉTECTION D'UN SIGNAL DE PRESSION AVEC UN SIGNAL DÛ À LA SUPPRESSION D'UNE PYROÉLECTRICITÉ DANS UN MATÉRIAU PIÉZOÉLECTRIQUE
(JA) 圧電材料での焦電性(pyroelectric)による信号が抑制された圧力信号検出回路及び方法
Abstract
(EN)
The present invention relates to a circuit and a method for detecting a pressure signal in which a signal due to pyroelectricity from a piezoelectric film is suppressed. In more detail, an input signal from a piezoelectric film is received, the input signal is differentiated in order to analyze a signal component of the input signal, an analysis value of the signal component of the input signal is output on the basis of the differentiated value, the analysis value of the signal component is used to eliminate an offset of the input signal, and the input signal is integrated to output a value of the input signal due to pressure from which a value of the input signal due to heat has been removed. Therefore, compared to the prior art, the present invention can detect the input signal at a higher speed while significantly reducing the effect caused by a thermal reaction. Furthermore, the present invention can output a signal having an even better thermal reaction damping effect than that obtained by using an additional process for absorbing heat during the manufacture of a piezoelectric film.
(FR)
La présente invention concerne un circuit et un procédé de détection d'un signal de pression dans lequel un signal dû à une pyroélectricité d'un film piézoélectrique est supprimé. De manière plus détaillée, un signal d'entrée provenant d'un film piézoélectrique est reçu, le signal d'entrée est différencié afin d'analyser une composante de signal du signal d'entrée, une valeur d'analyse de la composante de signal du signal d'entrée est délivrée en sortie sur la base de la valeur différenciée, la valeur d'analyse de la composante de signal est utilisée pour éliminer un décalage du signal d'entrée, et le signal d'entrée est intégré pour délivrer en sortie une valeur du signal d'entrée dû à la pression de laquelle une valeur du signal d'entrée dû à la chaleur a été éliminée. Par conséquent, par rapport à l'art antérieur, la présente invention peut détecter le signal d'entrée à une vitesse supérieure tout en réduisant significativement l'effet causé par une réaction thermique. En outre, la présente invention peut délivrer en sortie un signal ayant un effet d'amortissement de réaction thermique amélioré par rapport à celui obtenu en utilisant un processus supplémentaire pour absorber la chaleur pendant la fabrication d'un film piézoélectrique.
(JA)
本発明は、圧電フィルムからの焦電性(pyroelectric)による信号が抑制された圧力信号検出回路及び方法に関するものである。より詳細には、圧電フィルムからの入力信号の入力を受けて、入力信号の信号成分の分析のために入力信号を微分して、微分された微分値に基づいて入力信号の信号成分の分析値を出力し、信号成分分析値を利用して入力信号のオフセットを除去し、入力信号を積分して、熱による入力信号の値が除去された圧力による入力信号の値を出力する。これにより、本発明は、従来技術に比べ、熱反応への影響を大幅に削減しながら、より高速な圧力信号検出が可能である。さらに、本発明は、圧電フィルム製作時の熱吸収のための追加的な工程を使用するよりも熱反応減衰効果が優れた信号を出力することができる。
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