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1. 发明专利

JPH01147311A TIME MEASURING CIRCUIT FOR ULTRASONIC MEASURING INSTRUMENT 失效
公开(公告)号：JPH01147311A
公开(公告)日：1989-06-09
申请号：JP30582587
申请日：1987-12-04
申请人： CHUBU ELECTRIC POWER , TOYO KANETSU KK , HITACHI CONSTRUCTION MACHINERY
发明人： NAKAMURA TADASHI , YOKOYAMA JIRO , MIURA SHUICHI , TAKAHASHI OSAMU , ARIMA YUKIO , YANAGIMOTO HIROAKI
IPC分类号： G01B17/02
摘要： PURPOSE:To obtain the time measuring circuit where an error in counted value is hard to occur by providing a state setting circuit which latches a 1st detection signal received by a counter control circuit firstly and does not respond to the 1st detection signal. CONSTITUTION:A latch circuit like an F/F 14 is provided to the time measuring circuit 10 which starts a counter 18 when receiving a 1st detection signal corresponding to a surface reflected wave to count the clock signal of a clock generating circuit 13 and stops the counter 18 when receiving a 2nd detection signal corresponding to a bottom surface reflected wave or defect reflected wave. This latch circuit inputs the 1st detection signal at an S terminal and the 2nd detection signal at an R terminal. Then even if a next 1st detection signal is inputted, the signal is discarded until the 2nd detection signal is inputted after the former 1st detection signal is received.

2. 发明专利

JPH01147310A STATE MEASURING INSTRUMENT FOR COATING MEMBER 失效
公开(公告)号：JPH01147310A
公开(公告)日：1989-06-09
申请号：JP30582487
申请日：1987-12-04
申请人： CHUBU ELECTRIC POWER , TOYO KANETSU KK , HITACHI CONSTRUCTION MACHINERY
发明人： NAKAMURA TADASHI , YOKOYAMA JIRO , MIURA SHUICHI , TAKAHASHI OSAMU , ARIMA YUKIO , YANAGIMOTO HIROAKI
IPC分类号： G01B17/02
摘要： PURPOSE:To obtain the instrument which takes a measurement without being affected by noises while removing the noises by detecting an abnormal part of time characteristics of a secondary reflected wave, and correcting it with time characteristic of a primary reflected wave and obtaining thickness information on a coating member. CONSTITUTION:The instrument which measures the state of the coating member 2 having a thin film layer 3 on the surface with the ultrasonic wave detects the time of the primary reflected wave 3' from the bottom surface of the coating member based upon a reflected wave 1' from the coating layer and the time of the secondary reflected wave 4' based on the reflected wave 1' or 3'. The part A where the characteristics of time data Qt2 on the secondary reflected wave 4' are abnormal is detected. Then measurement data on this abnormal part A is corrected with characteristics of a part B of time data Pt1 on the primary reflected wave 3' corresponding to the A, and thickness information on the coating member 2 is obtained according to the corrected secondary reflected wave data.

3. 发明专利

JPH01147309A STATE MEASURING INSTRUMENT USING ULTRASONIC WAVE 失效
公开(公告)号：JPH01147309A
公开(公告)日：1989-06-09
申请号：JP30582387
申请日：1987-12-04
申请人： CHUBU ELECTRIC POWER , TOYO KANETSU KK , HITACHI CONSTRUCTION MACHINERY
发明人： NAKAMURA TADASHI , YOKOYAMA JIRO , MIURA SHUICHI , TAKAHASHI OSAMU , ARIMA YUKIO , YANAGIMOTO HIROAKI
IPC分类号： G01B17/02
摘要： PURPOSE:To obtain the high-reliability state measuring instrument which easily takes an ultrasonic-wave measurement by dividing an ultrasonic wave measuring instrument into an ultrasonic wave data sampling device and a measurement data processor, and connecting the both by an optical transmission line and transmitting data. CONSTITUTION:The ultrasonic wave measuring instrument 10 is constituted separately as the ultrasonic wave data sampling device 2 which samples ultrasonic wave data and measurement data processor 1 which processes ultrasonic wave data. Further, those devices 1 and 2 are connected by the optical transmission line 3 so that the data transmission is possible. Then only the data sampling device 2 is put in a sealed chamber (heavy crude oil tank, etc.) 11 whose state is to be measured with an ultrasonic wave, and the data processor 1 is installed outside the sealed chamber 1 to perform the ultrasonic wave measurement. Consequently, large-amount data processing is performed at an actual spot, so measurement and image processing are carried out in real time.

4. 发明专利

JPS6446609A PLATE THICKNESS MEASURING INSTRUMENT FOR BODY TO BE MEASURED WITH FILM 失效
公开(公告)号：JPS6446609A
公开(公告)日：1989-02-21
申请号：JP18505188
申请日：1988-07-25
申请人： CHUBU ELECTRIC POWER , JAPAN PROBE KK , TOYO KANETSU KK
发明人： SAKAI MATSUNARI , YOKOYAMA JIRO , ODA SATOSHI , MIURA SHUICHI , TAKAHASHI OSAMU
IPC分类号： G01B17/02
摘要： PURPOSE:To accurately measure the plate thickness of the body to be measured which does not includes a film from a border surface reflected wave and a bottom surface reflected wave extracted on the basis of a surface reflected wave. CONSTITUTION:A signal selector 22 selects the surface reflected wave, border surface reflected surface, and bottom surface reflected wave received by the receiving member 6 of an ultrasonic wave contactor 15. A comparator 25 which inputs the received wave (a) of the surface reflected wave and the received signal (b) of the border surface reflected wave outputs only a signal (c) based upon only the received signal (b) which is inputted with delay and a pulse gate circuit 34 which inputs the output signal (e) of an FF circuit 29 inputting the signal (c) and the received signal (d) of the bottom surface reflected wave and the output signal (f) of a timer pulse generator 33 outputs a signal (g) which is twice as large as the propagation time of the ultrasonic wave pulse of the body 10 to be measured; and this signal (g) is processed to find the plate thickness of the object body 10.

5. 发明专利

JPS63109310A ULTRASONIC PROBE FOR MEASURING THICKNESS OF PLATE 失效
公开(公告)号：JPS63109310A
公开(公告)日：1988-05-14
申请号：JP25468686
申请日：1986-10-28
申请人： CHUBU ELECTRIC POWER , JAPAN PROBE KK , TOYO KANETSU KK
发明人： SAKAI MATSUNARI , YOKOYAMA JIRO , ODA SATOSHI , MIURA SHUICHI , TAKAHASHI OSAMU
IPC分类号： G01B17/02
摘要： PURPOSE:To measure the real thickness of a plate, by making it possible to receive the reflected wave, obtained when the ultrasonic pulse emitted from a transmitting member is allowed to be incident to the surface of a measuring object, by a receiving member. CONSTITUTION:A part of the ultrasonic pulse emitted from a transmitting member 4 is reflected from the surface of an object to be measured 12 at first and passes through a gap 13 to be received by a receiving member 5. This receiving signal (a) is inputted to a comparing circuit 25 through a signal selector 22. A part of the ultrasonic pulse passing through the film 14 on the object to be measured 12 is reflected from the boundary surface between the film 14 and the measuring object 12 to enter the circuit 25 as a signal (b). A signal (c) inputted timewise plate is inputted to a flip-flop circuit 29 by the circuit 25 and the reflected wave from the bottom surface of the object to be measured 12 is inputted to the circuit 29 as a signal (d). The circuit 29 outputs a signal (e) and a clock pulse generator 33 generates a clock pulse (f) of a definite cycle. Next, the signals (e), (f) are inputted to a pulse gate circuit 34 to output a signal (g) showing the value corresponding to the difference between the receiving time of the boundary surface reflected wave and that of the bottom surface reflected wave. The signal (g) is subjected to operational processing by a microcomputer 36 and the real thickness of the object to be measures 12 is obtained.

6. 发明专利

JP2002332664A FAILURE DIAGNOSING METHOD FOR CONSTRUCTION EQUIPMENT, FAILURE DIAGNOSING SYSTEM FOR THE SAME, CONSTRUCTION EQUIPMENT, INFORMATION CONTROL CENTER, AND FAILURE DIAGNOSING PROGRAM 失效
公开(公告)号：JP2002332664A
公开(公告)日：2002-11-22
申请号：JP2001137809
申请日：2001-05-08
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： OGURA HIROSHI , WATANABE HIROSHI , SUGIYAMA GENROKU , KARASAWA HIDEO , UMENO YOSHIYUKI , TOMIKAWA OSAMU , MIURA SHUICHI , ONO KIYOSHI , OCHIAI YASUSHI
IPC分类号： E02F9/20 , G05B23/02 , G06Q30/06 , G06Q50/00 , G06Q50/08 , G06Q50/10 , H04Q9/00 , G06F17/60
摘要： PROBLEM TO BE SOLVED: To notify the operator of a point of failure of construction equipment while specifying the same. SOLUTION: In diagnosis of the point of failure of the construction equipment, an abnormal state of a hydraulic back hoe 1 is detected in response to a signal from a sensor 15 provided for the hydraulic back hoe 1, and information of the abnormal state is transmitted to a center 3 via a communication satellite 2. Upon reception of the information, a server 32 in the center 3 specifies the point of failure, based on the transmitted information and information stored in a database 33, and the specified information is transmitted to the hydraulic back hoe 1. A signal transmitted from the center 3 is displayed on a display device 11 of the hydraulic back hoe 1, and therefor the operator can recognize the point of failure.

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