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1. 发明专利

JP2002131439A DETERIORATION DIAGNOSING DEVICE FOR SEMICONDUCTOR DETECTOR 失效
公开(公告)号：JP2002131439A
公开(公告)日：2002-05-09
申请号：JP2000318308
申请日：2000-10-18
申请人： MITSUBISHI ELECTRIC CORP , JAPAN ATOMIC POWER
发明人： ITO HARUO , IKEDA IKUO , FUJIWARA HIROTSUGU , INUSHIMA HIROSHI
IPC分类号： G01T1/24 , G01T7/00 , H01L31/09
摘要： PROBLEM TO BE SOLVED: To provide a deterioration diagnosing device for semiconductor detector that detects the deterioration of a semiconductor detector. SOLUTION: This deterioration diagnosing device performs A/D conversion on a voltage waveform outputted from the semiconductor detector (not shown in the figure) and Fourier transform on converted signals (Yi) in a short time and finds the converted results at every frequency 1, 2,..., j by means of mean value computing elements 30, 31, and 32. Then the device compares found mean values with a mean value (normal value) which is obtained when the semiconductor detector that is preset by means of setters 33, 35, and 37 normally outputs the voltage waveform by means of comparators 34, 36, and 38. When, for example, the compared result of one of the comparators 34, 36, and 38 exceeds the threefold of the normal value, the device outputs the compared result to a comparator 40. The comparator 40 discriminates whether the semiconductor detector is in a normal state or an abnormal state by comparing the output with the set value of a setter 39 and, when the detector is in the abnormal state, generates a warning output 30.

2. 发明专利

JP2004012322A DEVICE FOR DIAGNOSING DETERIORATION IN SEMICONDUCTOR DETECTOR 审中-公开
公开(公告)号：JP2004012322A
公开(公告)日：2004-01-15
申请号：JP2002166938
申请日：2002-06-07
申请人： JAPAN ATOMIC POWER , MITSUBISHI ELECTRIC CORP
发明人： ITO HARUO , INUSHIMA HIROSHI , FUJIWARA HIROTSUGU , FUJITA KAZUHIKO
IPC分类号： G01T1/24
摘要： PROBLEM TO BE SOLVED: To patternize change in an output noise waveform of a semiconductor detector to carry out automatic discrimination. SOLUTION: A computer 26 computes wavelet transformation using the Gabor function of the output noise waveform observed by the semiconductor detector 1 as a basic function, based on a time-serial data Xi output from a sampling means 24, an average value in every passing center frequency computed by the wavelet transformation using the Gabor function as the basic function is compared with an average value in the every passing center frequency when the output noise waveform of the semiconductor detector 1 is normal, and a condition of the output noise waveform is output based on a comparison result therein. COPYRIGHT: (C)2004,JPO

3. 发明专利

JPH09133773A SWITCHING DEVICE FOR WIDE AREA NEUTRON INSTRUMENTATION MODE 失效
公开(公告)号：JPH09133773A
公开(公告)日：1997-05-20
申请号：JP29007595
申请日：1995-11-08
申请人： MITSUBISHI ELECTRIC CORP
发明人： FUJIWARA HIROTSUGU , NAKAI TOSHIMITSU
IPC分类号： G21C17/10 , G01T3/00
摘要： PROBLEM TO BE SOLVED: To automatically adjust a signal level by a simple structure so as to perform continuous switching by adjusting an input signal to be equal in size to that of a reference input signal. SOLUTION: A selecting means 24 selects one from a plurality of input signals and outputs the selected signal. A comparing means 23 compares the sizes of input signals with one of the input signals of the selecting means 24 as a reference. Storing means 25 to 27 hold the comparing result of the comparing means 23. Control means 28 to 30 control starting/stopping of storing performed by the storing means 25 to 27. In an adjusting means 22, the sizes of the other input signals are adjusted so as to be equal to that of the input signal as a reference based on the outputs of the comparing means 23 held by the storing means 25 to 27. Thus, continuous switching is automatically performed by a simple structure without making an instrumentation system complex, increasing its size or producing any level differences in outputs during switching.

4. 发明专利

JPS61256262A CORRELATION TYPE TIME DIFFERENCE METER 失效
公开(公告)号：JPS61256262A
公开(公告)日：1986-11-13
申请号：JP9669985
申请日：1985-05-09
申请人： MITSUBISHI ELECTRIC CORP
发明人： FUJIWARA HIROTSUGU , ODA MINORU
IPC分类号： G04F10/04 , G01R25/00
摘要： PURPOSE:To obtain a highly accurate time difference meter wherein the self- testing function with respect to the correlation operation between signals is embodied by simple circuit constitution, by providing a change-over switch to a correlation function operator to make it possible to select the desired signal in two inputted analogue signals. CONSTITUTION:At least a shift register 5 and a change-over switch 12 are provided to a correlation function operator 101. Two analogue input signals are inputted to comparators 3, 4 to be outputted as binarized signals. The signal from the comparator 3 is successively accumulated in the shift register 5 and applied to the change-over switch 12 through said shift register 5. The signal from the comparator 4 is directly applied to the change-over switch 12. Here upon, when the self-testing with respect to the correlation operation between signals is performed, the signal from the comparator 3 accumulated in the desired bit stage within the shift register 5 is selected.

5. 发明专利

JPS61122501A Detecting device for fall of moving body 失效
标题翻译：检测移动身体的装置
公开(公告)号：JPS61122501A
公开(公告)日：1986-06-10
申请号：JP24752084
申请日：1984-11-20
申请人： Mitsubishi Electric Corp
发明人： FUJIWARA HIROTSUGU
IPC分类号： G01B7/00
摘要： PURPOSE: To detect the fall of a body which moves up and down by arranging winding elements at the uppermost and lowermost ends of the movement path of the moving body and their intermediate part in consideration of their winding directions.
CONSTITUTION: When the magnetized moving body 2 is inserted up to a winding element 1b, voltages developed across winding elements 1a and 1b are equal to each other because of the mutual inductances between the winding element 1c and winding elements 1a and 1b and the elements 1a and 1b are connected in the opposite winding directions, so a signal to an AC/DC converter 6 is canceled. When the body 2 passes through the element 1b, the voltages developed across the elements 1a and 1b becomes equal to each other, and consequently the signal to the converter 6 is generated. Further, when the body 2 passes through the element 1a, the voltages developed across the elements 1a and 1b become equal again and the voltage signal to the converter 6 disappears. The output of the converter 6 is connected to an A/D converter 7-1 and converted into a digital signal, which is stored in a storage device 8.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过将绕组元件设置在移动体的运动路径的最上端和最下端，考虑其卷绕方向，来检测上下移动的身体的下落。构成：当磁化的移动体2插入绕组元件1b时，绕组元件1a和1b之间产生的电压由于绕组元件1c和绕组元件1a和1b与元件1a之间的互感而彼此相等并且1b在相反的卷绕方向上连接，所以到AC / DC转换器6的信号被取消。当主体2通过元件1b时，元件1a和1b上产生的电压彼此相等，从而产生到转换器6的信号。此外，当主体2穿过元件1a时，跨元件1a和1b产生的电压再次相等，并且转换器6的电压信号消失。转换器6的输出连接到A / D转换器7-1并转换成存储在存储装置8中的数字信号。

6. 发明专利

JPH1026648A INSULATION DIAGNOSTIC DEVICE FOR RADIATION DETECTOR 失效
公开(公告)号：JPH1026648A
公开(公告)日：1998-01-27
申请号：JP18048796
申请日：1996-07-10
申请人： MITSUBISHI ELECTRIC CORP
发明人： IKEDA IKUO , FUJIWARA HIROTSUGU , INUSHIMA HIROSHI
IPC分类号： G01R31/12 , G01T1/18
摘要： PROBLEM TO BE SOLVED: To obtain an insulation diagnostic device by which an insulation state is diagnosed with good sensitivity and at an early stage by discriminating whether detected electromagnetic waves are generated due to the dielectric breakdown of an insulation part at a radiation detector or they exist in the natural world. SOLUTION: Electromagnetic waves 6 which are generated in case a spacer (an insulator) 5 at a radiation detecting apparatus 1 generates a dielectric breakdown are received by an antenna 7, they are sampled by an A/D converter 15 via a filter 8 and amplifier 9, a plurality of pieces of time-series data Yi are output, an abnormality detecting and processing device 16 computes the distribution degree of the electromagnetic waves, and a warning signal is generated according to the comparison of the computed distribution degree with the distribution degree of the electromagnetic waves in case the insulation state of the spacer 5 is normal.

7. 发明专利

JPH0829538A RADIATION DETECTOR 失效
公开(公告)号：JPH0829538A
公开(公告)日：1996-02-02
申请号：JP16161394
申请日：1994-07-13
申请人： MITSUBISHI ELECTRIC CORP
发明人： IKEDA IKUO , INUSHIMA HIROSHI , TAKAOKA AKIRA , FUJIWARA HIROTSUGU
IPC分类号： G01T1/16 , G06F15/18 , G06N3/00
摘要： PURPOSE:To detect an abnormality by detecting the micro level variation, close to the background level, in the radiation from an object. CONSTITUTION:Under a condition where the radiation level of a plant is normal, the detection signal from a radiation detector is subjected to A/D conversion. The extent of distortion in the waveform of output Yi(data train of Y1, Y2, Y3,...) is operated through an operating unit 17 and an extent of distortion is set in a setter 18. Radiation from an object is detected when the radiation level thereof is detected and the extent of distortion of the detection signal is operated by the operating unit 17. The operation result is compared with a set value by means of a comparator 19. When the operated extent of distortion is higher than the set value by a factor of 3 or more, for example, a decision is made that the radiation level is abnormal and the fact is notified through an alarm 20.

8. 发明专利

JP2008043648A Wheelchair equipped with radiation exposure preventing function and medical institution system using the same 有权
标题翻译：配有辐射防护功能的轮椅和使用其的医疗机构
公开(公告)号：JP2008043648A
公开(公告)日：2008-02-28
申请号：JP2006224243
申请日：2006-08-21
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： TAKAOKA AKIRA , FUJIWARA HIROTSUGU
IPC分类号： A61N5/10 , A61G15/00 , A61G15/10 , G01T1/00 , G01T1/02 , G01T1/161 , G21F3/00
摘要： PROBLEM TO BE SOLVED: To provide a wheelchair which allows a subject of PET diagnosis to move easily around a medical institution while sitting, prevents medical workers around the subject from being exposed to radiation from the subject, and allows the medical workers to grasp the radiation dose radiated from the inside of the subject on real time.
SOLUTION: A wheelchair equipped with radiation exposure preventing function is provided which has a means for moving by oneself or with other people's help. The wheelchair has a shielding body 1 surrounding the circumference of the subject and a first radiation detector (radiation monitor 3) disposed in the shielding body 1 to measure/display a radiation dose radiated from the inside of the subject. The shielding body comprises a panel transparent enough at least to secure a visual field and contains a material effective for shielding radiation.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种允许PET诊断对象在坐着时容易地在医疗机构周围移动的轮椅，防止受试者周围的医护人员暴露于受试者的辐射，并允许医务工作者实时掌握从受试者内部辐射的辐射剂量。
解决方案：提供具有防辐射功能的轮椅，具有自己移动或与其他人的帮助的手段。轮椅具有围绕被检体周围的屏蔽体1和设置在屏蔽体1中的第一放射线检测器（放射线监测器3），以测量/显示从被检体的内部辐射的辐射剂量。屏蔽体包括至少足够透明的面板以确保视野并且包含有效屏蔽辐射的材料。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2000039477A RADIATION DETECTOR 失效
公开(公告)号：JP2000039477A
公开(公告)日：2000-02-08
申请号：JP20560898
申请日：1998-07-21
申请人： MITSUBISHI ELECTRIC CORP , GENSHIRYOKU ANZEN SYST KENKYUS
发明人： NISHIZAWA HIROSHI , FUJIWARA HIROTSUGU , NAKAMURA HIROAKI
IPC分类号： G01T1/24 , H01L31/09
摘要： PROBLEM TO BE SOLVED: To obtain a radiation detector for accurately measuring an energy by detecting a radiation of a high energy area with go sensitivity. SOLUTION: A radiation 101a is incident while applying a high voltage between both electrodes of semiconductor elements 102a to 102d having a constitution in which semiconductors 51a to 51d are interposed between upper electrodes 11 to 14 and lower electrodes 15 to 18, generated electrons and holes flow by an electric field generated by an applied voltage, and charges generated at the upper and lower electrodes 11 to 14 and 15 to 18 are detected. In this case, an energy of the radiation 101 is measured by a constitution in which a plurality of the elements 102a to 102d are laminated and electrically connected in series with each other.

10. 发明专利

JPH08338876A METHOD AND DEVICE FOR PARTICLE MEASUREMENT AND ATOMIC POWER PLANT 失效
公开(公告)号：JPH08338876A
公开(公告)日：1996-12-24
申请号：JP14580195
申请日：1995-06-13
申请人： MITSUBISHI ELECTRIC CORP
发明人： FUJIWARA HIROTSUGU , IKEGAMI KAZUNORI , NISHIZAWA HIROSHI
IPC分类号： G21C17/12 , G01T1/20 , G01T3/06 , G21D3/00
摘要： PURPOSE: To provide a neutron measuring device with which the distribution of neutron near an atomic reactor in an atomic power plant is measured with a single measuring device. CONSTITUTION: A neutron converter 7 generating a ray due to neutron incidence 9, a scintillator 1 which is given the α ray generated by the neutron converter 7 and emits and transmits the scintillation light, two photo-detection means 2 detecting the scintillation light through different transmission paths, and a signal process means 4 measuring neutron distribution by a time-of-flight method based on the time when the scintillation light reaches each photo-detection means 2, are provided.

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