公开(公告)号：US4767940A

公开(公告)日：1988-08-30

申请号：US104825

申请日：1987-10-02

申请人： William C. Tuttle

发明人： William C. Tuttle

IPC分类号： A61G5/04 ,  B60L15/20 ,  H02P7/68

CPC分类号： A61G5/045 ,  A61G5/121 ,  B60L15/2036 ,  A61G2203/18 ,  Y02T10/645 ,  Y02T10/7275 ,  Y10T307/766 ,  Y10T307/773

摘要： An electronic sensing and control circuit is provided which includes a sensing plate and means for charging the sensing plate to a value dependent upon the capacitance existing between the sensing plate and a remote object. The capacitance between the sensing plate and the object varies with the distance of the object relative to the sensing plate. The sensing plate is periodically discharged and charged producing a useful current proportional to the capacitance and varying with the distance between the sensing plate and the object. Two sensing plates are used to provide first and second signals. The first and second signals are subtracted to derive a lateral displacement signal and added to derive a distance signal. The lateral displacement signal and the distance signal can be used to control the forward, reverse and turning motion of a motorized wheelchair.

摘要翻译： 提供一种电子感测和控制电路，其包括感测板和用于将感测板充电到取决于感测板和远程物体之间存在的电容的值的装置。 感测板和物体之间的电容随物体相对于感测板的距离而变化。 感测板周期性地放电和充电，产生与电容成比例的有用电流，并随感测板和物体之间的距离而变化。 两个感测板用于提供第一和第二信号。 减去第一和第二信号以导出横向位移信号并将其相加以导出距离信号。 侧向位移信号和距离信号可用于控制电动轮椅的正向，反向和转动运动。

公开(公告)号：US6145212A

公开(公告)日：2000-11-14

申请号：US118267

申请日：1998-07-17

申请人： Charles J. Geise ,  Karl F. Cummings ,  William C. Tuttle ,  Larry A. Couchman ,  Donald M. Searcy ,  Donald G. Allen

发明人： Charles J. Geise ,  Karl F. Cummings ,  William C. Tuttle ,  Larry A. Couchman ,  Donald M. Searcy ,  Donald G. Allen

IPC分类号： G01B5/207 ,  G01B5/20

CPC分类号： G01B5/207

摘要： A fixture for interacting with an exhaust system having exhaust pipes and mufflers and an image of the exhaust system, the image having location indicia locating the fixture on the image, displacement data associated with the location indicia indicates an alignment point in space above the image, the fixture comprising at least two stands adapted to lie in a selected positions relative to the image, an alignment mark on the stands, the alignment mark being adapted to align the stands with the location indicia on the image, and at least two modules, a plurality of holders configured differently from one another to be attached to a module, each holder defining a coordinate point that moves relative to the stand and image in response to movement of the module relative to the stand, the plurality of holders including at least one pipe holder configured to receive the exhaust pipe therein to position a central axis of the exhaust pipe at the coordinate point and a muffler holder configured to cooperate with another stand and another module to receive a muffler, and wherein the modules are configured to be coupled to the stand for movement relative to the stand to position the coordinate point of an attached holder at the alignment point in space above the image so that the module is moved to assume a selected position relative to the stand.

摘要翻译： 用于与具有排气管和消音器的排气系统以及排气系统的图像相互作用的固定装置，具有将图像上的固定装置定位的位置标记的图像，与位置标记相关联的位移数据表示图像上方的空间中的对准点， 所述夹具包括至少两个支架，其适于位于相对于所述图像的选定位置，所述支架上的对准标记，所述对准标记适于将所述支架与所述图像上的位置标记对准，以及至少两个模块， 多个保持器构造成彼此不同以被附接到模块，每个保持器限定响应于模块相对于支架的移动而相对于支架和图像移动的坐标点，所述多个保持器包括至少一个管 保持器构造成在其中接收排气管以将排气管的中心轴定位在坐标点处，并且构造消声器保持器 与另一个支架和另一个模块配合以接收消音器，并且其中模块被配置为联接到支架以相对于支架移动，以将附着的支架的坐标点定位在图像上方的空间中的对准点处， 模块被移动以相对于支架采取选定的位置。