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公开(公告)号：US20150025772A1
公开(公告)日：2015-01-22
申请号：US14321324
申请日：2014-07-01
CPC分类号： G01B7/003 , F02D28/00 , G01D5/2013 , G01D5/202 , G01D5/2452
摘要： A position indicator device (10) comprising a first array (12) of uniformly spaced-apart pulse induction affecting targets fixed in position relative to a second array of uniformly spaced-apart pulse induction affecting targets (14). The spacing between the centres of adjacent targets of the first array (12) differs from that of the second (14). The device further comprises a first set (18) of pulse-induction coils comprising a plurality of such coils and a second set (20) of pulse-induction coils comprising a plurality of such coils. The coils of the first set (18) are fixed relative to those of the second set (20). Those of the first set (18) are located adjacent to the first array (12) of targets. Those of the second set (20) are located adjacent to the second array (14) of targets. The targets (the said first and second arrays together) and the coils (the said first and second sets together) are movable relative to one another. The device further comprises indicator circuitry (22) connected to the first and second sets (18 and 20) of pulse induction coils to provide a signal dependent upon the outputs thereof indicative of the position of the coils relative to the targets.Also a position indicator device (10) comprising at least one pulse-induction affecting target (12), at least one pulse-induction coil (18), and pulse-induction indicator circuitry (22) connected to the said at least one pulse-induction coil (18) to provide a signal dependent upon the output thereof indicative of the position of the said at least one pulse-induction coil (18) relative to the said at least one pulse-induction affecting target (12). Metallic glass or amorphous metal is arranged to shield the said at least one pulse-induction affecting target (12) and/or the said at least one pulse-induction coil (18) from stray signals.
摘要翻译： 一种位置指示器装置（10），包括均匀间隔开的脉冲感应的第一阵列（12），其影响相对于影响目标（14）的均匀间隔的脉冲感应的第二阵列固定在适当位置的目标。 第一阵列（12）的相邻目标的中心之间的间隔与第二阵列（12）的中心之间的间隔不同。 该装置还包括包括多个这样的线圈的脉冲感应线圈的第一组（18）和包括多个这种线圈的脉冲感应线圈的第二组（20）。 第一组（18）的线圈相对于第二组（20）的线圈是固定的。 第一组（18）的那些位于与目标的第一阵列（12）相邻的位置。 第二组（20）的那些位于靶的第二阵列（14）附近。 目标（所述第一和第二阵列在一起）和线圈（所述第一和第二组在一起）可相对于彼此移动。 该装置还包括连接到脉冲感应线圈的第一组和第二组（18和20）的指示器电路（22），以提供取决于其指示线圈相对于靶的位置的输出的信号。 还有一种位置指示器装置（10），包括至少一个脉冲感应影响目标（12），至少一个脉冲感应线圈（18）和连接到所述至少一个脉冲感应线圈（18）的脉冲感应指示器电路（22） 感应线圈（18），以根据其输出提供指示所述至少一个脉冲感应线圈（18）相对于所述至少一个脉冲感应影响目标（12）的位置的信号。 金属玻璃或非晶金属被布置成屏蔽所述至少一个脉冲感应影响目标（12）和/或所述至少一个脉冲感应线圈（18）与杂散信号。
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公开(公告)号：US20150013472A1
公开(公告)日：2015-01-15
申请号：US14328764
申请日：2014-07-11
IPC分类号： G01F1/66
CPC分类号： G01F1/662
摘要： An ultrasonic flowmeter comprising an elongate duct through which fluid flows when the flowmeter is in use. Ultrasonic transducers are arranged respectively to transmit and receive ultrasonic pulses propagated through such fluid when the flowmeter is in use. Electronic circuitry is connected to the transducers to provide a measure of the time delay between emission of an electronic pulse from one of the transducers and reception of the pulse by the other of the transducers. The circuitry is constructed to enable an output to be provided which is dependent upon that delay and which is indicative of the rate of flow of fluid through the duct. The transducers are located respectively at opposite ends of the duct and are arranged to transmit and receive ultrasonic pulses propagated through the fluid substantially parallel to the duct from one end thereof to the other. The transducers are provided with respective vibratory surfaces which transmit and/or receive ultrasound, which vibratory surfaces have a diameter which exceeds the cross-sectional diameter of the duct.
摘要翻译： 一种超声波流量计，其包括细长管道，当流量计在使用时流体流过该管道。 当使用流量计时，分别布置超声波换能器以传送和接收通过这种流体传播的超声波脉冲。 电子电路连接到换能器以提供从换能器中的一个发射电子脉冲和由另一个换能器接收脉冲之间的时间延迟的量度。 电路被构造成能够提供取决于该延迟的输出，并且其指示通过管道的流体的流速。 换能器分别位于管道的相对端，并且被布置成将基本上平行于管道的流体从其一端传输和接收到另一端。 传感器设置有相应的振动表面，其传输和/或接收超声波，该振动表面的直径超过管道的横截面直径。
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