专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明专利

JPH11153402A POSITION DETECTION SENSOR 失效
公开(公告)号：JPH11153402A
公开(公告)日：1999-06-08
申请号：JP31820197
申请日：1997-11-19
申请人： MITSUBISHI HEAVY IND LTD
发明人： KURODA ATSUSHI , KAMIMURA TAKEO
IPC分类号： G01B7/00 , G01B7/30 , G01N27/90
摘要： PROBLEM TO BE SOLVED: To restrict detection error of a running position to the minimum by detecting inclination of a detection coil to the ground surface, and correcting the inclination. SOLUTION: A position detection sensor comprises an oscillation circuit unit 1, a coil unit 2, a preamplifier unit 3, a positioning sensor amplifier unit 4, and a coil attitude control part. The coil unit 2provided on a sensor head comprises an active coil 21 to detect a mark plate, and a compensation coil 22 for a reference signal. Each of the active coil 21 and the compensation coil 22 comprises an excitation coil 23 and a detection coil 24. On the sensor head, a photoelectric sensor is provided as a detection means to detect inclination of the excitation coil 23 and the detection coil 24 to the ground surface. The coil attitude control part regulates an adjusting screw by a stepping motor in accordance with the inclination detected by the photoelectric sensor to correct the inclination of the coil unit 2.

52. 发明专利

JPH10123098A EDDY CURRENT FLAW DETECTION PROBE 失效
公开(公告)号：JPH10123098A
公开(公告)日：1998-05-15
申请号：JP28255796
申请日：1996-10-24
申请人： MITSUBISHI HEAVY IND LTD
发明人： KURODA ATSUSHI , MIYAUCHI REIZO , HAMANA MICHIO , KAMIMURA TAKEO , ENAMI KOJI
IPC分类号： G01N27/90
摘要： PROBLEM TO BE SOLVED: To detect a microflaw signal accurately by converting a signal amplified through a preamplifier into a digital signal, adding a correction code thereto, and encoding the signal through an encoding circuit thereby suppressing the effect of attenuation and noise on the flaw signal during transmission. SOLUTION: An analog signal from a preamplifier 11 is converted through an A/D converter 12 into a digital signal. It is then added with an error correction code and encoded through an encoder circuit 13 and the output signal is received by an eddy current flaw detector 4 while being buffered through a butter IC 14. When a flaw is present in a body to be tested, a detection coil 1 in an eddy current flaw detection probe detects variation in the field. A flaw signal is amplified through an amplifier 11, converted through an A/D converter 12 and delivered to the encoder circuit 13. The encoder circuit 13 adds an error correction signal to the digital signal and delivers the added signal from the butter IC 14 to the eddy current flaw detector 4 thus correcting error of the signal due to noise.

53. 发明专利

JPH102715A POSITION DETECTOR 失效
公开(公告)号：JPH102715A
公开(公告)日：1998-01-06
申请号：JP15399396
申请日：1996-06-14
申请人： MITSUBISHI HEAVY IND LTD
发明人： KURODA ATSUSHI , ANDO MASAKUNI , KAMISHIRO KAZUHIRO
IPC分类号： G01D5/30 , G01B11/00
摘要： PROBLEM TO BE SOLVED: To achieve an accurate positional detection by eliminating positional detection error related to an apparatus for detecting the position of a moving object. SOLUTION: A moving object 1 is provided with photosensors 3 and 4 and a light source 7 and moves on the front of an encoder pattern 2 which is fixed on a wall or the like. Projection light 5 from the light source 7 is reflected by a light part 11 of the pattern 2 to be turned into reflected light L, which is detected by the photosensors 3 and 4, but none is reflected by a dark part 12. A pulse detected is given a voltage value '1', while a pulse, undetected, is given '0'. The pulse is read out by a counter and outputted from a waveform-shaping circuit. The photosensors 3 and 4 are mounted with detection outputs shifted by 90 deg. in phase, so as to be detected as a pulse train of the pattern 2, and the direction of movement is found out, depending on which of the photosensors perform a detection earlier. The pattern 2 changes the ratio of the widths (a) and (b) of the light and dark parts at a high, middle or low speed range, to make the widths detectable according to the speeds and the width/speed = time is constant to eliminate the difference in the duty ratio. This makes sure counting of the pulse, thereby enabling elimination of detection errors.

54. 发明专利

JP2003259362A IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD 审中-公开
公开(公告)号：JP2003259362A
公开(公告)日：2003-09-12
申请号：JP2002060995
申请日：2002-03-06
申请人： MITSUBISHI HEAVY IND LTD
发明人： KURODA ATSUSHI , TAKUHARA MASAHITO
IPC分类号： G06T1/00 , G06T7/00 , H04N5/225 , H04N7/18
摘要： PROBLEM TO BE SOLVED: To provide an image processing apparatus and an image processing method capable of detecting and recognizing an object with high accuracy. SOLUTION: The image processing apparatus is provided with: an infrared ray camera 12 for performing infrared ray photographing to output an infrared ray image; a visual ray camera 11 for performing visible ray photographing with a visual field corresponding to the visual filed of the infrared ray camera and outputting a visible ray image; an extract section 15 for outputting position information representative of a position of a hot point denoting a heat generating body included in the infrared ray image from the infrared ray camera in the infrared ray image; and a processing section 17 for searching for a prescribed range from a position in the visible ray image from the visible ray camera corresponding to the position of the hot point from the extract section so as to detect and recognize the object. COPYRIGHT: (C)2003,JPO

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式