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公开(公告)号：KR1020020038657A
公开(公告)日：2002-05-23
申请号：KR1020020023442
申请日：2002-04-29
Applicant: 자인테크놀로지(주) , 한국표준과학연구원
IPC: G01F3/30
Abstract: PURPOSE: A wet gas flow measuring device is provided to easily adjust fluid level, to easily grasp integral value and to improve convenience by converting detected gas flow into flow under standard temperature and air pressure. CONSTITUTION: A device includes a drum(208); a magnetic coupling; an encoder; a level adjusting part; and a conversion/display part. The drum comprises a fixed number of compartments and an axis and has an inlet and an outlet of gas separated from each other and is filled with sealing fluid. The magnetic coupling couples the drum in a chamber(202) and the encoder outside the chamber by magnetism so that an axis of the encoder rotates by rotation of the drum. The encoder is driven by the magnetic coupling as the drum rotates to output pulse proportional to the rotation frequency of the drum. The level adjusting part has a bar(220) inserted by screw to adjust level of the sealing fluid by adjusting volume of the bar sinking under the sealing fluid. The conversion/display part calculates gas flow data based on the pulse to convert into flow under standard temperature and air pressure and display.
Abstract translation: 目的：提供湿气流量测量装置，以便在标准温度和空气压力下，将检测到的气体流量转换成流量，轻松调节液位，轻松掌握积分值，提高方便性。 构成：装置包括鼓（208）; 磁耦合; 编码器 电平调节部分; 和转换/显示部分。 鼓包括固定数量的隔室和轴线，并且具有彼此分离的气体的入口和出口，并且填充有密封流体。 磁耦合器通过磁力将腔室（202）中的鼓和编码器耦接在腔室外，使得编码器的轴线通过滚筒的旋转而旋转。 当磁鼓旋转时，编码器由磁耦合驱动，以输出与转鼓旋转频率成比例的脉冲。 液位调节部件具有通过螺钉插入的杆（220），以通过调节在密封流体下方的杆的体积来调节密封流体的水平。 转换/显示部分基于脉冲计算气体流量数据，以在标准温度和气压下显示流量。
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公开(公告)号：KR1019940001040B1
公开(公告)日：1994-02-08
申请号：KR1019910023168
申请日：1991-12-17
IPC: G01K19/00
Abstract: The device mounted on a calorimeter used for central heating or district heating apartments, increases sensing ability for wide range of measuring the flow and for accurate measuring values, decreases power consumption of flow sensing section for reducing cost. The device comprises a pick-up coil for sensing signals of the flow, op-amplifiers (2)(3) for restricting electric current, resistances (R1)(R3) at respective op-amplifiers (2)(3) for reducing power consumption, condenser (C1) at the amplifier (2) for removing noise primarily, condenser (C2) and resistance (R2) at the amplifier (3) for comparing changes of delicate signals.
Abstract translation: 安装在用于中央供暖或区域供暖公寓的热量计上的设备增加了对测量流量的广泛测量和精确测量值的感测能力，降低了流量传感部分的功耗以降低成本。 该装置包括用于感测流量的信号的拾取线圈，用于限制电流的运算放大器（2）（3），用于减小各个运算放大器（2）（3）的电阻（R1）（R3），以降低功率 在放大器（2）处用于消除噪声的电容器（C1），放大器（3）处的电容器（C2）和电阻器（R2））用于比较微妙信号的变化。
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公开(公告)号：KR1020130109494A
公开(公告)日：2013-10-08
申请号：KR1020120031249
申请日：2012-03-27
Applicant: 한국표준과학연구원
Abstract: PURPOSE: A thermal mass flow sensor is provided to vary only a voltage supplied to a heating unit, thereby obtaining precise measurement sensitivity without changing the structure of a basis thermal mass flow sensor. CONSTITUTION: A thermal mass flow sensor includes a thin film (110), a heating unit (120), first and second thermopiles (131, 132), a control unit (140), and a voltage converter (150). The heating unit is formed on the thin film. The first and second thermopiles connect thermocouples on the upper and lower streams of the heating unit in a row. The control unit varies a heater output of the heating unit, thereby generating heater output controlling signals varying intervals of the first and second thermopiles and the heating unit. The voltage converter varies an output voltage supplied to the heating unit according to the heater output controlling signals generated by the control, thereby supplying to the heating unit.
Abstract translation: 目的：提供热质量流量传感器，以仅改变提供给加热单元的电压，从而在不改变基础热质量流量传感器的结构的情况下获得精确的测量灵敏度。 构成：热质量流量传感器包括薄膜（110），加热单元（120），第一和第二热电堆（131,132），控制单元（140）和电压转换器（150）。 加热单元形成在薄膜上。 第一和第二热电堆连续地将加热单元的上流和下流上的热电偶连接起来。 控制单元改变加热单元的加热器输出，从而产生加热器输出控制信号，该第一和第二热电堆和加热单元的间隔可变。 电压转换器根据由控制器产生的加热器输出控制信号来改变提供给加热单元的输出电压，从而供应到加热单元。
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公开(公告)号：KR1019930013699A
公开(公告)日：1993-07-22
申请号：KR1019910023168
申请日：1991-12-17
IPC: G01K19/00
Abstract: 열량계에 관한 것으로 특히 열량계에서 유량감지부의 전력소모를 낮추고 감지능력을 향상시키는 방법에 관한 것으로 열량계에서 픽업코일(1)을 이용하여 유량신호를 감지함으로서 전력소모를 기존의 1/10이하로 낮추고 신호 감지능력을 기존의 5배 정도 향상시키며 또한 외부 노이즈나 유량감지부의 진동 또는 불규칙한 회전으로 발생되는 노이즈를 제거함을 특징으로 하는 "열량계에서 유량감지부의 전력소모를 낮추고 감지능력을 향상시키는 방법."
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Patent Agency Ranking
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公开(公告)号：KR1020120094791A
公开(公告)日：2012-08-27
申请号：KR1020110014273
申请日：2011-02-17
Abstract: PURPOSE: A method for correcting the deviation of an ultrasonic flow meter is provided to calculate correction deviation reflecting an installation position and the Reynold's number to a flow rate deviation correction curve being calculated by the Pascal's triangle and a Levenberg-Marquardt algorithm, thereby accurately calculating the deviation generated by a rotary current. CONSTITUTION: A method for correcting the deviation of an ultrasonic flow meter is as follows. A flow rate deviation correction curve is calculated based on two variable values for correcting the deviation of an ultrasonic flow meter(S100). The two variable values are calculated based on the Reynold's number related to properties of a fluid flowing in a pipe in which an ultrasonic flow meter is installed and a position of the ultrasonic flow meter(S200). An output variable of the flow rate deviation correction curve is calculated based on an instructing value measured by the ultrasonic flow meter and a reference instructing value measured by a reference flow meter(S300). A coefficient of the flow rate deviation correction curve is calculated based on the two variable values and the output variable(S400). A correction deviation is calculated by reflecting the Reynold's number and an installation position of the ultrasonic flow meter to the flow rate deviation correction curve in which the coefficient is reflected(S500). A measurement value of the ultrasonic flow meter in which the deviation is corrected based on the instructing value measured by the ultrasonic flow meter and the correction deviation(S600).
Abstract translation: 目的：提供一种纠正超声波流量计偏差的方法，将反映安装位置和雷诺数的校正偏差计算为由帕斯卡三角形和Levenberg-Marquardt算法计算的流量偏差校正曲线，从而精确计算 由旋转电流产生的偏差。 构成：用于校正超声波流量计的偏差的方法如下。 基于用于校正超声波流量计的偏差的两个变量值来计算流量偏差校正曲线（S100）。 基于与在其中安装超声波流量计的管道中流动的流体的性质和超声波流量计的位置相关的雷诺数来计算两个变量值（S200）。 基于由超声波流量计测量的指示值和由参考流量计测量的参考指示值来计算流量偏差校正曲线的输出变量（S300）。 基于两个变量值和输出变量计算流量偏差校正曲线的系数（S400）。 通过将雷诺数和超声波流量计的安装位置反映到反映系数的流量偏差校正曲线（S500）来计算校正偏差。 基于由超声波流量计测定的指示值和校正偏差来校正偏差的超声波流量计的测定值（S600）。
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19.发明公开병렬 랑지방 배열 압전소자 이용 초음파 변환기, 그 초음파 변환기의 제조방법, 그 초음파 변환기를 이용한 초음파 변환방법 有权超声波传感器，使用平面平行的LANGEVIN安装压电元件，制造超声波传感器的方法，使用超声波传感器的气体计量器，使用超声波传感器的距离测量装置
公开(公告)号：KR1020110061023A
公开(公告)日：2011-06-09
申请号：KR1020090117532
申请日：2009-12-01
Applicant: 한국표준과학연구원 , 주식회사 위지트에너지
Abstract: PURPOSE: An ultrasonic transducer using piezoelectric elements aligned in a parallel langevin type, a manufacturing method thereof, an ultrasonic conversion method using the ultrasonic transducer, an ultrasonic gas meter using the ultrasonic transducer, and an ultrasonic distance measuring device using the ultrasonic transducer are provided to oscillate piezoelectric elements in a thickness and radius modes without phase delay because the piezoelectric elements receive the same electric energy from a single signal supply channel. CONSTITUTION: An ultrasonic transducer comprises piezoelectric elements, front and rear housings(100,200), and an oscillating unit(300). The piezoelectric elements, which form a cathode on a side and an anode on the other side when applied with voltage, are coupled in grooves of the front housing and oscillate in a radius mode and a thickness mode. The oscillating unit forms oscillation of a bending mode on the front housing by the radius mode oscillation. The rear housing is coupled with the front housing to form a cylindrical cavity(140). The cavity resonant frequency according to the cavity distance(L) and the bending mode resonant frequency according to the bending mode oscillation are in accord with so that ultrasonic waves are created.
Abstract translation: 目的：提供一种使用以平行兰格温型排列的压电元件的超声波换能器，其制造方法，使用该超声波振子的超声波变换方法，使用超声波振子的超声波气体计量器，以及使用超声波振子的超声波距离测定装置 振荡压电元件的厚度和半径模式，没有相位延迟，因为压电元件从单个信号供应通道接收相同的电能。 构成：超声波换能器包括压电元件，前壳体和后壳体（100,200）和振荡单元（300）。 当施加电压时，在一侧形成阴极和另一侧的阳极的压电元件被耦合在前壳体的凹槽中并以半径模式和厚度模式振荡。 振荡单元通过半径模式振荡在前壳体上形成弯曲模式的振荡。 后壳体与前壳体联接以形成圆柱形空腔（140）。 根据腔体距离（L）的腔谐振频率和根据弯曲模式振荡的弯曲模式谐振频率符合，从而产生超声波。
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公开(公告)号：KR100782155B1
公开(公告)日：2007-12-06
申请号：KR1020060058299
申请日：2006-06-27
CPC classification number: G01F25/0053 , G01D21/02 , G01F3/22 , G01K13/02
Abstract: A gas flow measuring device for flow meter calibration is provided to prevent the change of a calibration value due to the change of temperature and to automate the calibration process by the control of a computer program. A gas flow measuring device for flow meter calibration includes a divergence bank(1), a plurality of flow divergence pipes(3), a confluence bank(4), and a controller(5). The divergence bank has a pressure sensor(11) and a temperature sensor(12), and is connected to a flow pipe. The flow divergence pipes are connected to a sonic nozzle(31), and equipped with air pressure valves(32). The confluence bank is connected to the end of the flow divergence pipe to join the gas transferred to each flow divergence pipe. The controlling device controls the air pressure valve and a flow meter(6), and receives the information sensed from the air pressure valve and the flow meter to calculate a calibration value.
Abstract translation: 提供了用于流量计校准的气体流量测量装置，以防止温度变化引起的校正值的改变，并通过计算机程序的控制使校准过程自动化。 用于流量计校准的气体流量测量装置包括发散堤（1），多个流量分支管（3），汇流堤（4）和控制器（5）。 发散组具有压力传感器（11）和温度传感器（12），并与流量管连接。 流量分支管连接到声波喷嘴（31），并配备有空气压力阀（32）。 汇流堤连接到流量分支管的末端，以连接转移到每个流量分支管的气体。 控制装置控制空气压力阀和流量计（6），并接收从空气压力阀和流量计感测的信息以计算校准值。
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