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    • 41. 发明专利
    • Radiation measurement system
    • 辐射测量系统
    • JP2007192548A
    • 2007-08-02
    • JP2006008184
    • 2006-01-17
    • Mitsubishi Electric Corp三菱電機株式会社
    • MOGI KENICHINAKANISHI SHOICHISHIOMI HIROSHI
    • G01T1/167G01T1/00G01T1/169G01T1/20
    • PROBLEM TO BE SOLVED: To provide a radiation measuring system capable of highly sensitively and highly accurately measuring β-rays.
      SOLUTION: A first scintillation fiber layer 21a which reacts with radiation emitted from a body to be measured 1 and environmental γ-rays; a β-ray shield layer 22 for shielding β-rays emitted from the body to be measured 1; and a second scintillation fiber layer 21b which reacts with environmental γ-rays are arranged sequentially from the side of the body to be measured 1 in this order. The radiation measuring system includes both a detection part for converting each fluorescence resulted from the reactions of the first and second scintillation fiber layers 21a and 21b with radiation into pulse signals and outputting them and a measuring part for inputting and counting the pulse signals, converting them into engineering values, and outputting them. The effects of γ-rays are estimated on the basis of measurement results of radiation detected by the second scintillation fiber layer 21b, and β-rays emitted from the body to be measured is measured by compensating for the effects of γ-rays on the basis of measurement results of radiation detected by the first scintillation fiber layer 21a.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供能够高灵敏度且高精度地测量β射线的辐射测量系统。 解决方案:与从被测体1发射的辐射和环境γ射线反应的第一闪烁纤维层21a; 用于屏蔽从被测体1发射的β射线的β射线屏蔽层22; 与环境γ射线反应的第二闪烁纤维层21b依次从被测体1的侧面顺序排列。 辐射测量系统包括用于将由第一和第二闪烁光纤层21a和21b的反应产生的每个荧光与辐射转换为脉冲信号并输出​​的检测部分和用于输入和计数脉冲信号的测量部分, 转化为工程价值,并输出。 基于由第二闪烁纤维层21b检测的放射线的测定结果来估计γ射线的影响,通过基于γ射线的影响来补偿从被检测体发射的β射线 由第一闪烁光纤层21a检测的放射线的测量结果。 版权所有(C)2007,JPO&INPIT
    • 42. 发明专利
    • Tritium monitor
    • 三重监视器
    • JP2006292507A
    • 2006-10-26
    • JP2005112224
    • 2005-04-08
    • Mitsubishi Electric Corp三菱電機株式会社
    • MOGI KENICHINAKANISHI SHOICHISHIOMI HIROSHI
    • G01T1/167G01T7/02
    • PROBLEM TO BE SOLVED: To provide a tritium monitor capable of highly sensitively measuring tritium and capable of eliminating the replacement operation of adsorbent by using a carrier gas while recovering, and capable of shielding the carrier gas from radon/thoron and their daughter nuclides.
      SOLUTION: The tritium monitor for measuring the tritium included in a sample gas in a vapor state comprises: the entrance valve 1 for sampling the gas at the measurement point as the sample gas; water vapor separation device 5 for separating the water vapor in the sample gas and releasing it into the carrier gas; the ionization chamber 10 for carrying the water vapor released into the carrier gas and measuring the tritium; the carrier gas recovery device 7 for recovering the carrier gas by removing the water vapor from the carrier gas after measurement; the compensation ionization chamber 16 for measuring the background radiation of the recovered carrier gas; and the pomp 11 for circulating the recovered carrier gas and introducing it into the water vapor separation device 5.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供能够高度灵敏地测量氚的氚监测器,并且能够在回收时通过使用载气来消除吸附剂的替换操作,并且能够屏蔽来自氡气/钍气及其子女的载气 核素。 < P>解决方案:用于测量蒸汽状态的样品气体中包含的氚的氚监测器包括:用于对作为样品气体的测量点处的气体进行取样的入口阀1; 水分离装置5,用于分离样气中的水蒸汽并将其释放到载气中; 用于承载释放到载气中的水蒸气并测量氚的电离室10; 载气回收装置7,用于通过在测量之后从载气中除去水蒸气来回收载气; 用于测量回收载气的背景辐射的补偿电离室16; 以及用于使回收的载气循环并将其引入水蒸气分离装置5中的压力11。版权所有(C)2007,JPO&INPIT
    • 44. 发明专利
    • Tritium monitor
    • 三重监视器
    • JP2005134244A
    • 2005-05-26
    • JP2003370845
    • 2003-10-30
    • Mitsubishi Electric Corp三菱電機株式会社
    • MOGI KENICHINAKANISHI SHOICHI
    • G01N1/02G01N1/22G01T1/00G01T1/167G01T1/20G01T7/02G21C17/00
    • PROBLEM TO BE SOLVED: To obtain a tritium monitor which is eco-friendly, economical, stable, and highly sensitive without generating industrial waste such as a liquid scintillator by making an ionization chamber can be used in a good state.
      SOLUTION: The tritium monitor for continuously measuring tritium in a sample gas connoting the tritium in the form of water vapor, comprises the hydrogen separator 4 which resolves the water vapor in the sample gas into oxygen and hydrogen and returns the oxygen to the sample gas and separates and extracts the hydrogen gas, and the ventilation type radiation detector 5 for measuring the tritium contained in the separated hydrogen.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了获得环境友好,经济,稳定,高灵敏度的氚监测器,不会产生诸如液体闪烁体的工业废物,通过使电离室能够以良好的状态使用。 解决方案:用于连续测量样品气体中的氚的氚监测器,其以水蒸汽的形式表示氚,包括氢分离器4,其将样品气体中的水蒸汽分解成氧气和氢气并将氧气返回到 采样气体并分离和提取氢气,以及用于测量分离的氢气中所含的氚的通风型辐射检测器5。 版权所有(C)2005,JPO&NCIPI
    • 45. 发明专利
    • Tritium measuring device
    • 三角测量装置
    • JP2005091334A
    • 2005-04-07
    • JP2003329277
    • 2003-09-22
    • Mitsubishi Electric Corp三菱電機株式会社
    • NAKANISHI SHOICHIMOGI KENICHI
    • G01N1/02G01N1/22G01T1/00G01T1/167G01T1/20G01T7/02
    • PROBLEM TO BE SOLVED: To provide a tritium measuring device which measures tritium at high precision by collecting it at high efficiency.
      SOLUTION: The tritium measuring device is composed of a tritium collecting part and a tritium measuring part. The tritium collecting part comprises a sampling air intake port 1a, a steam separator 6 which separates steam and others from the sampled air, and a carrier gas introducing port 1b which introduces the carrier gas for sending the separated steam to a tritium measuring part 100 into a steam separator 6. The tritium measuring part 100 comprises a detection vessel 102 which incorporates a plastic scintillator 101 the interior in which the carrier gas containing the separated steam is introduced, a light guide 103 connected to a plurality of different points of the plastic scintillator 101, and a photomultiplier 104 connected to each of the light guides 103. Detection of tritium is measured when receives signals at the same time from the photomultipriers 104 after connected to the photomultipriers 104.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种以高效率收集高精度测量氚的氚测量装置。 解决方案:氚测量装置由氚收集部件和氚测量部件组成。 氚收集部分包括取样进气口1a,将蒸汽等与取样空气分离的蒸汽分离器6和引入用于将分离的蒸汽输送到氚测量部件100的载气的载气引入口1b, 氚测量部分100包括检测容器102,该检测容器102包括塑料闪烁体101,其中引入含有分离蒸汽的载气的内部,连接到塑料闪烁体的多个不同点的光导103 101和连接到每个光导103的光电倍增器104.当连接到光电复合体104之后,当从多于一个光电复合体104的同时接收信号时,测量氚的检测。(C)2005,JPO&NCIPI
    • 46. 发明专利
    • Radiation monitor
    • 辐射监测
    • JP2003057354A
    • 2003-02-26
    • JP2001245418
    • 2001-08-13
    • Mitsubishi Electric Corp三菱電機株式会社
    • MOGI KENICHI
    • G01T1/24G01T1/172
    • PROBLEM TO BE SOLVED: To provide a radiation monitor capable of preventing contamination of an external noise.
      SOLUTION: This monitor is equipped with first and second semiconductor detectors 1, 2 having respectively one or a plurality of semiconductor sensors for detecting radiation and outputting an analog signal pulse, and installed separately in two groups, and an asynchronous counting circuit 7 for inputting the analog signal pulse outputted from the first and second semiconductor detectors and counting a pulse having a wave height value over a prescribed discrimination level and satisfying a condition of asynchronous timing.
      COPYRIGHT: (C)2003,JPO
    • 要解决的问题:提供能够防止外部噪声污染的放射线监视器。 解决方案:该显示器配备有分别具有一个或多个半导体传感器的第一和第二半导体检测器1,2,用于检测辐射并输出模拟信号脉冲,并分别安装在两组中,以及异步计数电路7,用于输入 从第一和第二半导体检测器输出的模拟信号脉冲,并对具有超过规定判别电平的波高值的脉冲进行计数,并满足异步定时的条件。
    • 47. 发明专利
    • 放射線測定装置
    • 辐射测量装置
    • JP2014235014A
    • 2014-12-15
    • JP2013114859
    • 2013-05-31
    • 三菱電機株式会社Mitsubishi Electric Corp
    • NAGAI SADAMITSUMOGI KENICHI
    • G01T1/17G01T1/167G21C17/00G21C17/003
    • 【課題】放射線検出器内で発生した静電気放電光ノイズは、ノイズパルス波形と信号パルス波形とで差異がないので、波形識別によるノイズ検知は不可能であった。【解決手段】高エネルギーウィンドウ計数手段11bで高エネルギーウィンドウNHに入る光電ピークを計数し、低エネルギーウィンドウ計数手段11aで低エネルギーウィンドウNLに入るコンプトン散乱を計数し、高エネルギーウィンドウ計数率演算部52で求めた計数率が設定した計数率以上の場合に警報出力し、その時の低エネルギー計数率増加分と高エネルギー計数率増加分の比をウィンドウ比診断部511で求め、その比が設定範囲内にある場合は測定核種の放射能の増加と判断し、設定範囲を逸脱したらノイズ侵入と判断するようする。【選択図】図1
    • 要解决的问题:为了解决由于噪声脉冲波形和信号脉冲波形之间没有差异,通过波形识别不能检测到辐射检测器内部产生的静电放电光噪声的问题。解决方案:进入更高能量窗口的光电峰 NH由高能窗计数装置11b计数。 进入低能窗口的康普顿散射由低能量窗计数装置11a计数。 如果由高能量窗口计数率运算单元52获得的计数率大于或等于设定的计数率,则输出报警。 通过窗口比率诊断单元511获得低能量计数率增量与高能量计数率增量的比例。如果比率在设定范围内,则将其确定为所测量的辐射的增加 核素; 如果该比率超过设定范围,则将其确定为噪声包含。
    • 48. 发明专利
    • 線量率測定装置
    • 剂量测量装置
    • JP2014211381A
    • 2014-11-13
    • JP2013088287
    • 2013-04-19
    • 三菱電機株式会社Mitsubishi Electric Corp
    • MOGI KENICHIAIBA TOSHIHIDE
    • G01T1/17G01T1/00
    • G01T1/02G01T1/023
    • 【課題】広レンジ化で低線量率レンジの本来のエネルギー特性を悪化させることなく、かつ低線量率レンジと高線量率レンジの切換点の段差を抑制した良好なエネルギー特性により高精度な放射線の線量率測定装置を提供することを目的としている。【解決手段】線量率測定装置1は、入射した放射線のエネルギーに比例する電荷を有する離散的な電流パルスと放射線のエネルギーに比例する直流電流を変換した直流電圧とを出力する放射線検出器2と、放射線検出器2を動作させる高電圧を供給する高圧電源4と、放射線検出器2から電流パルス及び直流電圧を入力してそれぞれ低レンジ線量率、高レンジ線量率に変換し、線量率に応じて低レンジ線量率と高レンジ線量率とを切り換えて出力する測定部3と、で構成されている。【選択図】図1
    • 要解决的问题:提供一种具有优异的能量特性的高精度辐射剂量率测量装置,其通过防止低剂量率范围的本征能量特性由于范围变宽而劣化,并且通过抑制切换点处的电平差 在低剂量率范围和高剂量率范围之间。剂量率测量装置1配置有:辐射检测器2,用于输出具有与入射辐射能成比例的电荷的离散电流脉冲和由 转换与辐射能成比例的直流电流; 用于提供放射线检测器2操作的高电压的高压电源4; 以及测量单元3,用于接收来自辐射检测器2的当前脉冲和DC电压的输入,将电流脉冲和DC电压中的每一个转换成低范围剂量率和高范围剂量率,并且在 低范围剂量率和高剂量率根据输出前的剂量率。
    • 49. 发明专利
    • 線量率測定装置
    • 剂量测量装置
    • JP2014211380A
    • 2014-11-13
    • JP2013088285
    • 2013-04-19
    • 三菱電機株式会社Mitsubishi Electric Corp
    • MOGI KENICHIAIBA TOSHIHIDE
    • G01T1/20G01T1/00G01T1/203
    • G01T1/00G01T1/20
    • 【課題】線量率測定装置において、低線量率レンジと高線量率レンジの切換点の段差を目立たなくする。【解決手段】シンチレータと、シンチレータで発光した光が入射する光電子増倍管と、光電子増倍管の出力をコンデンサを介して増幅するプリアンプと、プリアンプの出力を増幅するメインアンプと、メインアンプの出力をデジタル変換するA/D変換器と、光電子増倍管の出力電圧が入力されるV/F変換器と、V/F変換器から出力されるパルスの数を計測するカウンタと、A/D変換器の出力から低レンジ線量率RLを求める低レンジ線量率演算部と、カウンタの出力から高レンジ線量率RHを求める高レンジ線量率演算部とを備えている線量率測定装置。線量率切換演算部は、線量率比RH/RLが1+k1を超えると表示部を低レンジから高レンジへ切換え、線量率比RH/RLが1+k2まで低下すると表示部を高レンジから低レンジへ切換える。【選択図】図2
    • 要解决的问题:在剂量率测量装置中的低剂量率范围和高剂量率范围之间的切换点处的电平差不太显着。解决方案:提供了一种剂量率测量装置,包括:闪烁体; 由闪烁体发射的光进入的光电子乘法器; 用于经由电容器放大光电子倍增器的输出的前置放大器; 用于放大前置放大器的输出的主放大器; 用于将主放大器的输出转换成数字量的A / D转换器; 输入光电子倍增器的输出电压的V / F转换器; 用于计数从V / F转换器输出的脉冲数的计数器; 低范围剂量率算术单元,用于从A / D转换器的输出计算低范围剂量率RL; 以及用于从计数器的输出计算高范围剂量率RH的高范围剂量率运算单元。 当剂量比率RH / RL超过1 + k1时,剂量率切换运算单元将显示单元从低范围切换到高范围,并且当剂量率比RH / RL下降到1 + k2。
    • 50. 发明专利
    • Radiation monitor
    • 辐射监测
    • JP2014112052A
    • 2014-06-19
    • JP2012266413
    • 2012-12-05
    • Mitsubishi Electric Corp三菱電機株式会社
    • TAGUCHI MASAKIMOGI KENICHI
    • G01T1/17
    • PROBLEM TO BE SOLVED: To obtain a radiation monitor that is highly accurate in a wide range.SOLUTION: A minute electric current inputted from a radiation detector 1 is converted into a sawtooth wave pulse by a charge integration part 2, and a counting rate calculation part 10a of a calculation part 10 calculates a counting rate from the number of sawtooth wave pulses per set time and a voltage value of the sawtooth wave pulse when the set time elapses, and a leak current compensation part 10b calculates a leak current corresponding to a temperature at the time of a measurement from a preliminarily prepared table of leak current versus temperature, and compensates the counting rate on the basis of the leak current. Since the minute electric current is measured on the basis of both of the number of the sawtooth wave pulses and a voltage of the sawtooth wave pulse with a width less than a width of one pulse when the set time elapses, the minute current can be accurately measured in a short time, and since an error due to the leak current variable with the temperature is compensated, even the minute current can be accurately measured.
    • 要解决的问题:获得在宽范围内高精度的辐射监测器。解决方案:从辐射检测器1输入的微小电流通过电荷积分部分2转换成锯齿波脉冲,计数速率计算 计算部分10的部分10a根据每设定时间的锯齿波脉冲数和当设定时间过去时的锯齿波脉冲的电压值计算计数速率,泄漏电流补偿部分10b计算对应于 从预先准备的泄漏电流表相对于温度进行测量时的温度,并且基于泄漏电流来补偿计数率。 由于基于锯齿波脉冲的数量和当设定时间过去时宽度小于一个脉冲的宽度的锯齿波脉冲的电压来测量分电流,因此微小电流可以精确地 在短时间内测量,并且由于由于随温度而变化的泄漏电流的误差被补偿,所以即使精确地测量微小电流。