专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06561022B1 Position encoder 失效
标题翻译：位置编码器
公开(公告)号：US06561022B1
公开(公告)日：2003-05-13
申请号：US09786416
申请日：2001-10-11
申请人： Richard Alan Doyle , Euan Morrison , Andrew James White , Victoria Ann Clark
发明人： Richard Alan Doyle , Euan Morrison , Andrew James White , Victoria Ann Clark
IPC分类号： G01F2360
CPC分类号： A47J31/4457 , G01F23/68 , G01F23/72
摘要： A linear position sensor is provided which employs phase quadrature sensor windings, an excitation winding and a resonator. When an excitation current is applied to the excitation winding, it causes the resonator to resonate which in turn induces signals in the sensor windings. The sensor windings are spatially arranged so that the electromagnetic coupling between them and the resonator varies with the position of the resonator. The excitation windings, phase quadrature windings and resonant circuit are arranged so that the magnetic fields involved in the operation of the position sensor are substantially parallel to each other and the direction of movement of the resonator. Consequently, the effect of rotation of the resonator or lateral movement of it relative to the excitation and phase quadrature windings is alleviated.
摘要翻译：提供了一种使用相位正交传感器绕组，励磁绕组和谐振器的线性位置传感器。当励磁电流施加到励磁绕组时，它使谐振器谐振，这又导致传感器绕组中的信号。传感器绕组在空间上布置成使得它们与谐振器之间的电磁耦合随着谐振器的位置而变化。励磁绕组，相位正交绕组和谐振电路被布置成使得与位置传感器的操作相关的磁场基本上彼此平行并且谐振器的移动方向。因此，减轻了谐振器的旋转或其相对于激励和相位正交绕组的横向运动的影响。

2. 发明授权

US07208945B2 Sensing apparatus and method 有权
标题翻译：检测装置及方法
公开(公告)号：US07208945B2
公开(公告)日：2007-04-24
申请号：US10492646
申请日：2002-03-14
申请人： Ross Peter Jones , Richard Alan Doyle , Mark Anthony Howard , David Alun James , Darran Kriet , Colin Stuart Sills
发明人： Ross Peter Jones , Richard Alan Doyle , Mark Anthony Howard , David Alun James , Darran Kriet , Colin Stuart Sills
IPC分类号： G01R33/12 , G01N27/72
CPC分类号： G01D5/2073 , D06F39/003 , D06F39/087
摘要： There is described a sensor comprising an excitation winding, a signal generator operable to generate an excitation signal and arranged to apply the generated excitation signal to the excitation winding, a sensor winding electromagnetically coupled to the excitation winding and a signal processor operable to process a periodic electric signal generated in the sensor winding when the excitation signal is applied to the excitation winding by the signal generator to determine a value of a sensed parameter. The excitation signal comprises a periodic carrier signal having a first frequency modulated by a periodic modulation signal having a second frequency, the first frequency being greater than the second frequency. In this way, the sensor is well suited to using digital processing techniques both to generate the excitation signal and to process the signal induced in the sensor windings. In an embodiment, the sensor is used to detect the relative position of two members. In other embodiments, the sensor is used to detect environmental factors such as temperature and humidity.
摘要翻译：描述了一种传感器，其包括激励绕组，信号发生器，其可操作以产生激励信号并被布置成将产生的激励信号施加到激励绕组，电磁耦合到激励绕组的传感器绕组和可操作以处理周期性的信号处理器当激励信号由信号发生器施加到激励绕组以确定感测参数的值时，在传感器绕组中产生的电信号。激励信号包括具有由具有第二频率的周期性调制信号调制的第一频率的周期性载波信号，第一频率大于第二频率。以这种方式，传感器非常适合于使用数字处理技术来产生激励信号并处理在传感器绕组中感应的信号。在一个实施例中，传感器用于检测两个构件的相对位置。在其他实施例中，传感器用于检测诸如温度和湿度的环境因素。

3. 发明授权

US06595419B1 Shielded magnetic reading devices 失效
标题翻译：屏蔽磁读取装置
公开(公告)号：US06595419B1
公开(公告)日：2003-07-22
申请号：US09869092
申请日：2001-09-05
申请人： Richard Alan Doyle , Michael David Crossfield
发明人： Richard Alan Doyle , Michael David Crossfield
IPC分类号： G06K708
CPC分类号： G01V15/00 , G06K7/084
摘要： A detector for reading information stored in a magnetic tag is disclosed, the reader comprising two assemblies of permanent magnets (each containing three magnets) arranged with their magnetic poles in opposition such that the magnetic poles of one triplet are physically opposite the like poles of the other triplet. The magnets are preferably elongate with their long axes being mutually parallel. The two magnet assemblies define between them a gap through which, in use, a tag having magnetic material is passed. Receiver coils are positioned within the gap. The magnet assemblies are preferably rigidly secured within an aluminum housing. Electrostatic screening foils may be placed over the receiver coils.
摘要翻译：公开了一种用于读取存储在磁性标签中的信息的检测器，读取器包括两个永磁体组件（每个包含三个磁体），它们的磁极相对布置，使得一个三线态的磁极在物理上与其他三元组。磁体优选是细长的，其长轴相互平行。两个磁体组件在它们之间限定一个间隙，在使用中通过该间隙通过具有磁性材料的标签。接收器线圈位于间隙内。磁体组件优选地刚性地固定在铝壳体内。静电屏蔽箔可以放置在接收器线圈上。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式