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    • 3. 发明授权
    • A SENSOR
    • 传感器
    • EP1700091B1
    • 2007-07-18
    • EP04794156.2
    • 2004-10-04
    • TEKSCAN, INC.
    • PAPAKOSTAS, ThomasGEORGE, ChristopherMALACARIA, CharlesLOWE, Mark
    • G01L1/20
    • G01L1/20
    • A sensor (50, 180) for measuring a parameter applied to a surface is provided. The sensor includes at least one substrate layer (61, 70, 112, 300, 302, 310), a plurality of individual sensor elements (60, 62, 231, 235, 225) operatively arranged with respect to the substrate layer, and a conductive trace (190, 192, 225', 229' 231', 304, 306) disposed on the substrate layer. The conductive trace is electrically coupled to an individual sensor element and wraps around at least a portion of the sensor element in a spiral-like manner. Further, by employing slits (90, 114, 223, 233) or cut-outs (140) of material between sensor elements, a sensor element may move independent of an adjacent sensor element, thereby allowing the sensor to conform to an irregularly shaped surface or otherwise when subject to relatively large deflections. The sensor may be employed to detect force distribution of a seating surface, such as a seat cushion of a wheelchair.
    • 提供用于测量施加到表面的参数的传感器(50,180)。 传感器包括至少一个衬底层(61,70,112,300,302,310),相对于衬底层可操作地布置的多个单独的传感器元件(60,62,231,235,225),以及 导电迹线(190,192,225',229'231',304,306)。 导电迹线电耦合到单独的传感器元件并且以螺旋状方式缠绕传感器元件的至少一部分。 此外,通过在传感器元件之间使用材料的狭缝(90,114,223,233)或切口(140),传感器元件可独立于相邻的传感器元件移动,由此允许传感器符合不规则形状的表面 否则当受到相对大的偏转时。 该传感器可用于检测座椅表面(例如轮椅的座垫)的力分布。
    • 4. 发明公开
    • GRIP FORCE MEASURING SENSOR
    • GREIFKRAFTSENSOR
    • EP1056996A1
    • 2000-12-06
    • EP99905715.1
    • 1999-02-03
    • TEKSCAN, INC.
    • OREPER, BorisBRENNEMAN, John
    • G01L1/20A61B5/22A63B23/16
    • A63B71/0622A61B5/1036A61B5/225A61B5/228A63B60/06A63B60/08A63B60/10A63B2060/464A63B2071/0625A63B2220/51A63B2220/56A63B2220/58A63B2220/80A63B2220/833G01L1/20G01L1/225G01L5/0085
    • A novel pressure sensor mechanism is provided which includes both a novel pressure sensor assembly and a novel handle for use therewith. The pressure sensor assembly has at least one pressure sensor at its distal end, the pressure sensor having electrodes which are connected through spaced leads to output terminals at a proximal end of the assembly. Even though sensor electrodes and leads may be on facing substrate sections of the assembly, the assembly is designed so as to permit all output terminals to be electrically accessed from the same side of the sensor assembly. An additional output terminal may be provided for preferred embodiments, which terminal is accessible from the same side of the sensor assembly as the other two output terminals, is substantially smaller than the other two output terminals and is connected to one of the other two output terminals by a sensor-ok lead or trace. The handle has a circuit board with a terminal corresponding to each output terminal on the sensor assembly, and a slot for receiving the proximal end of the sensor assembly and for aligning such assembly with each of its output terminals adjacent the corresponding terminal on the circuit board. The handle also includes a member for applying pressure to the side of the sensor assembly opposite the output terminals and a mechanism for permitting such pressure to be released so as to facilitate insertion and removal of the sensor assembly from the handle. The handle also includes controls which operate in conjunction with the sensor-ok trace on a sensor assembly to detect when good electrical contact is being made between the terminals of the sensor assembly and the corresponding terminals of the handle circuit board, and for receiving and suitably outputting pressure measurements from the sensor.
    • 5. 发明公开
    • OUTPUT CIRCUIT FOR PRESSURE SENSOR
    • AUSGANGSSCHALTUNGFÜRDRUCKWANDLER
    • EP0998663A1
    • 2000-05-10
    • EP98915547.8
    • 1998-04-10
    • TEKSCAN, INC.
    • OREPER, Boris
    • G01L1/18G01L25/00
    • G01L9/04G01L1/205G06F3/0414G06F3/047
    • Circuit (10) has a variable pressure sensitive resistance sensor point (12) formed at the intersection of a first electrode (14) and a second electrode (16) which is connected to the negative input of an operational amplifier (18) which has its output connected through feedback resistor (20) to its negative input. Control circuit (22) generates a sensitivity control signal on line (24) which is applied to digital to analog converter (26) which is also connected to a fixed voltage reference source (28). Output line (30) provides an analog reference voltage (Vref) both to a positive input to operational amplifier (18) and to a ratiometric analog to digital converter (32) which is also connected to the output of operational amplifier (18). The digital output of the A/D (32) is connected both as an input to control circuit (22) and the output of circuit (10) on line (34).
    • 提供了一种用于扫描和输出压力传感器的电路,所述压力传感器具有至少一个传感器点,所述传感器点在至少一个第一电极和至少一个第二电极的每个相交处形成有传感器点,每个传感器处的电极之间存在压敏电阻 点。 该电路包括参考电位发生器,其输出被施加在每个第二电极的输出端;第一电位源,当与第一电极相交的传感器点被扫描时连接到每个第一电极,并且比例A / D转换器,其具有作为第二电位源的输入,来自与被扫描的传感器点相交的第二电极的输出和参考电位。 转换器的输出是电路输出。 根据两个电位的值,灵敏度随着参考电位值的增加而增加或减小,该电路具有显着的增益,为灵敏度提供了较大的动态范围。
    • 6. 发明公开
    • PRESSURE RESPONSIVE SENSOR HAVING CONTROLLED SCANNING SPEED
    • 与主动的可控制扫描速度压力传感器
    • EP0922206A1
    • 1999-06-16
    • EP97939538.0
    • 1997-08-25
    • TEKSCAN, INC.
    • OREPER, BorisHOWARD, Paul
    • G01L5A61C19G01L1
    • A61C19/05G01L1/205G01L5/228
    • A circuit and various sensor arrays are provided which facilitate the scanning of an array of pressure responsive points at higher speed than is possible with currently available circuits and sensor arrays and also provides greater flexibility in selecting scanning speed and in making a trade off between scanning speed and resolution. These objectives are achieved by providing a sensor array having T sets of drive electrodes, with pressure points in a predetermined pattern intersected by drive electrodes of each set and a sense electrode of each pressure point of a set. A test signal is applied simultaneously to the drive electrodes of each set, with a different test signal being applied to each set, each test signal flowing through a drive electrode to which the test signal is applied, and through pressure points intersected by such drive electrode for which the resistance is in a lowered resistance state, to the sense electrode intersecting the point, and through sensor output lines to which the sense electrodes are selectively connected. The sense electrodes may be selectively connected to an output circuit which may for example provide a separate A/D converter for each sensor output line or may multiplex the sensor output lines to a single A/D converter. For one embodiment of the invention, T = 1 so that a single test pulse may be applied simultaneously to all of the pressure points of the sensor array. Various techniques are also provided for enhancing resolution in areas of interest while sacrificing resolution in areas which are not of interest so as to permit higher speed scanning to be performed without significant sacrifice in resolution.
    • 8. 发明公开
    • FLEXIBLE, TACTILE SENSOR FOR MEASURING FOOT PRESSURE DISTRIBUTIONS AND FOR GASKETS
    • 灵活的战术传感器,用于测量压力分布从脚和密封。
    • EP0457900A1
    • 1991-11-27
    • EP91902445.0
    • 1990-12-11
    • TEKSCAN, INC.
    • PODOLOFF, Robert, M.BENJAMIN, Michael, H.WINTERS, JayGOLDEN, Robert, F.
    • A61B5G01L1G01L5
    • A61B5/1036G01L1/205
    • Le capteur de force et de pression décrit comprend deux groupes d'électrodes parallèles (4) qui sont placées face à face et qui sont disposées de sorte que les électrodes d'un groupe croisent les électrodes de l'autre groupe selon un angle formant plusieurs intersections entre les électrodes. Un matériau résistif sensible à la pression (5) est déposé entre les électrodes à chaque intersection. Une couche adhésive est appliquée sur au moins l'un des deux groupes d'électrodes dans des zones situées entre les intersections des électrodes, de façon à immobiliser les premier et second groupes d'électrodes en position de face à face, la couche adhésive étant de préférence appliquée selon un motif formant des passages là où il n'y a pas de couche adhésive, pour permettre à l'air de s'échapper des régions intérieures du groupe d'électrodes. On peut régler l'épaisseur de la couche adhésive pour conférer une précharge ou pour établir un niveau seuil pour le capteur. Pour obtenir un découpage fini de la périphérie des électrodes du groupe d'électrodes, le contact électrique avec chaque électrode des groupes d'électrodes est établi en un point intermédiaire entre les extrémités des électrodes. On établit ce contact en plaçant sur la face postérieure de chaque électrode une couche isolante (3) qui présente des trous aux points d'intersections désirés et qui comporte sur le dos de la feuille isolante plusieurs conducteurs de connexion, un pour chaque électrode, qui établissent un contact avec l'électrode correspondante à travers le trou se trouvant dans la feuille isolante.