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公开(公告)号：US11971289B2
公开(公告)日：2024-04-30
申请号：US18205463
申请日：2023-06-02
发明人： Martin Sheridan
CPC分类号： G01F23/185 , G01F23/44 , G05D9/12 , G01F23/60
摘要： Tank-installable switches for installation through a thief hatch port on a tank. In some embodiments, the switch may comprise a tubular body and a liquid level sensor. The liquid level sensor may include: a detector; a float in and moveable along a length of the lower end; and a rod connecting the float to the detector. The liquid level sensor may be configured to sense a liquid level relative to the lower end and further configured to generate a signal when at least a maximum selected liquid level is sensed.
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公开(公告)号：US11953365B2
公开(公告)日：2024-04-09
申请号：US17512414
申请日：2021-10-27
申请人： Chengli Li
发明人： Erjian Song , Hanqin Zhou
摘要： A switching device includes a first enclosure containing a switch, a rod-shaped second enclosure having a second end connected to the first enclosure, a detector unit in the second enclosure, and a float disposed around the second enclosure and capable of moving along it. As the float moves from the first end of the second enclosure toward the second end, when the float enters a first position range, a first position sensor senses the float and transmits a first sensing signal to a detection circuit; when the float enters a second position range, a second position sensor senses the float and transmits a second sensing signal to the detection circuit. The detection circuit close a switch in response to the second sensing signal to turn on an external appliance. The switching device is flexible, reliable, and inexpensive to produce.
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公开(公告)号：US20230341253A1
公开(公告)日：2023-10-26
申请号：US18218382
申请日：2023-07-05
发明人： Seung Ha JUNG
CPC分类号： G01F23/42 , G01F23/443
摘要： A water-level measuring device using a gear ratio includes: a water pool filled with a liquid; a plot receiving buoyancy by being floated over a water surface of the liquid filled in the water pool; a cable connected to the plot and extending to the outside of the water pool; a first gear connected with the cable; a second gear connected with the first gear; a weight pendulum connected with the second gear and moving in up and down directions, wherein when a water level of the water pool descends, the weight pendulum ascends due to a weight of the plot, and when the water level of the water pool ascends, the weight pendulum descends due to the buoyancy of the plot.
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公开(公告)号：US11543281B1
公开(公告)日：2023-01-03
申请号：US16653860
申请日：2019-10-15
摘要： A fluid level sensing system comprises a sensor float assembly, a sensor control module comprising a sensor processor, and a sensor cable. An accelerometer arranged within the float chamber in a fixed orientation relative to a float axis. The accelerometer is capable of determining movement in at least first and second reference axes. The sensor cable is operatively connected between the float processor and the sensor processor. Movement of the float enclosure relative to the reference point is limited. The accelerometer generates and transfers to the float processor first and second sets of data representative of movement along the first and second reference axes. The float processor generates and transfers to the sensor processor pitch data associated with the float enclosure based on the first and second sets of data. The sensor processor generates a status signal and/or a control signal based on the pitch data.
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公开(公告)号：US20220221323A1
公开(公告)日：2022-07-14
申请号：US17572026
申请日：2022-01-10
发明人： Seung Ha JUNG
摘要： A water-level measuring device using a gear ratio includes: a water pool filled with a liquid; a plot receiving buoyancy by being floated over a water surface of the liquid filled in the water pool; a cable connected to the plot and extending to the outside of the water pool; a first gear connected with the cable; a second gear connected with the first gear; a weight pendulum connected with the second gear and moving in up and down directions, wherein when a water level of the water pool descends, the weight pendulum ascends due to a weight of the plot, and when the water level of the water pool ascends, the weight pendulum descends due to the buoyancy of the plot.
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公开(公告)号：US20050274915A1
公开(公告)日：2005-12-15
申请号：US10955485
申请日：2004-09-30
申请人： Dirk Holcomb , Steven Jackson
发明人： Dirk Holcomb , Steven Jackson
CPC分类号： G01D5/24452 , G01D5/24428 , G01D5/24461 , G01D5/2448 , G01D5/2449 , G01D5/3473 , G01D5/34776 , G01F23/446
摘要： A level transmitter can generate a level measurement signal according to the position of a float that follows fluid level in a tank. The transmitter can comprise an optical encoder with a patterned disk that is linked to the float so that fluid level change produces disk rotation. An array of optical sensors positioned on one side of the disk can read reflective and absorptive patches attached to the disk's surface to identify disk position and disk rotation. One or more of the sensors can collect a signal from a reference area of the disk. Circuitry can compare the signals output by each data sensor to the reference signal to enhance binary classification of each acquired data signal. The transmitter can operate in multiple encoding modes, each of which can provide a level of redundancy.
摘要翻译： 液位变送器可以根据液体中液面位置的浮动位置产生液位测量信号。 发射机可以包括光学编码器，其具有连接到浮子的图案化盘，使得液位变化产生盘旋转。 定位在磁盘一侧的光学传感器阵列可以读取附着在磁盘表面上的反射和吸收性补片，以识别磁盘位置和磁盘旋转。 一个或多个传感器可以从盘的参考区域收集信号。 电路可以将每个数据传感器输出的信号与参考信号进行比较，以增强每个采集的数据信号的二进制分类。 发射机可以在多种编码模式下工作，每种编码模式可以提供一定程度的冗余。
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公开(公告)号：US5824980A
公开(公告)日：1998-10-20
申请号：US669829
申请日：1996-06-26
申请人： Bengt Sodergard
发明人： Bengt Sodergard
摘要： A closed, hollow body has a suspending and tethering, electrical cable joined thereto, the latter conducting electrical power to and from a microswitch confined within the body. A switch actuator is engaged and disengaged by a weight, within the body, the weight being pivotably supported therein, and having a center of gravity which is offset from a central, longitudinal axis of the sensor.
摘要翻译： 封闭的中空体具有连接到其上的悬挂和系固电缆，后者将电力传导到限制在体内的微动开关。 开关致动器通过重物接合和分离，在体内，重物可枢转地支撑在其中，并具有偏离传感器的中心纵向轴线的重心。
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公开(公告)号：US5655841A
公开(公告)日：1997-08-12
申请号：US442892
申请日：1995-05-17
申请人： Harvey Storm
发明人： Harvey Storm
CPC分类号： G01K7/21 , G01D5/34 , G01F23/443 , G01F23/446 , H03K5/22
摘要： An error-compensated temperature measurement system has a temperature sensor, an amplifying circuit and a compensation circuit for compensating non-linearities in the amplifying circuit of the temperature sensor. Specifically, the amplifying circuit has an analogue to digital converter exhibiting non-linearity characteristics, and the compensating circuit automatically compensates these non-linearities as well as correcting for the self-zero and self gain characteristics of the amplifying circuit.
摘要翻译： 误差补偿温度测量系统具有用于补偿温度传感器的放大电路中的非线性的温度传感器，放大电路和补偿电路。 具体地说，放大电路具有显示非线性特性的模数转换器，并且补偿电路自动补偿这些非线性以及校正放大电路的自零和自增益特性。
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公开(公告)号：US5132669A
公开(公告)日：1992-07-21
申请号：US584106
申请日：1990-09-18
申请人： Ronald E. Jackson
发明人： Ronald E. Jackson
CPC分类号： G01F23/44 , B01J49/0086 , G01F23/0015 , G01F23/241 , G01F23/243 , G08B21/182
摘要： An alarm system for use in a salt-brine tank of a water softener has a sensor including a stem member having a lower end received in the bed of salt within the salt-brine tank and an upper end projecting above the bed of salt. An spaced pair of electrodes are supported at the stem member upper end and are responsive to direct contact with a brine solution inside the tank for generating the signal indicative of an abnormal condition. An electronic circuit is coupled to the sensor for generating an alarm which includes two counters coupled to a clock circuit such that any alarm indicative of the abnormal condition is delayed for a predetermined period of time after the sensor signals the abnormal condition, and the alarm is generated as spaced, short bursts of sound, the spacing between the bursts of sound being greater than the duration of the bursts.
摘要翻译： 一种用于软水器的盐 - 盐水箱的报警系统具有传感器，该传感器包括杆部件，该杆部件具有容纳在盐 - 盐水箱内的盐床中的下端和在盐床上方突出的上端。 间隔开的一对电极被支撑在杆构件上端，并且响应于与罐内的盐水溶液直接接触以产生指示异常状况的信号。 电子电路耦合到传感器，用于产生警报器，其包括耦合到时钟电路的两个计数器，使得在传感器发出异常状态之后，指示异常状态的任何警报延迟预定时间段，并且警报是 产生为间隔短的声音突发，声音的间隔大于突发的持续时间。
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公开(公告)号：US5091863A
公开(公告)日：1992-02-25
申请号：US455981
申请日：1989-12-22
IPC分类号： E03F7/00 , G01F1/00 , G01F23/16 , G01F23/18 , G01F23/24 , G01F23/26 , G01F23/296 , G01F23/44 , G01N1/10 , G01N1/14 , G01N1/18 , G01N1/20 , G01N33/18
CPC分类号： G01F23/296 , E03F7/00 , G01F1/002 , G01F1/005 , G01F23/168 , G01F23/18 , G01F23/24 , G01F23/245 , G01F23/263 , G01F23/44 , G01N1/14 , G01N1/2035 , G01N2001/1043 , G01N2001/1081 , G01N2001/1427 , G01N2001/185 , G01N33/18
摘要： An automatic liquid sampling and flow measuring apparatus provided as a unitary structure within a case, and capable of collecting liquid samples at selected intervals, measuring flow rate through a channel at selected intervals, and collecting and storing sampling and flow rate data for later retrieval. The apparatus is provided with its own self-contained microprocessor for automatically controlling sampling operations, calculating flow rate on the basis of signals from a sensor, and storing data relating to sample collection and flow rate measurement. The stored data can be called up on a display of the apparatus, or can be transferred via a portable transfer unit to an external output device, such as a printer capable of producing a hard copy of the data.
摘要翻译： 一种自动液体取样和流量测量装置，其在壳体内设置为整体结构，并且能够以选定的间隔收集液体样品，以选定的间隔测量通过通道的流速，以及收集和存储采样和流速数据以供稍后检索。 设备具有自己的独立微处理器，用于自动控制采样操作，基于来自传感器的信号计算流量，并存储与采样和流量测量有关的数据。 存储的数据可以在设备的显示器上调用，或者可以经由便携式传送单元传送到外部输出设备，诸如能够产生数据的硬拷贝的打印机。
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