专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2000105182A METHOD FOR SETTING INITIAL TEST FORCE IN PRESS TYPE HARDNESS TESTER 失效
公开(公告)号：JP2000105182A
公开(公告)日：2000-04-11
申请号：JP28998998
申请日：1998-09-28
申请人： AKASHI CORP
发明人： ODA MITSURU , SUZUKI MIHO
IPC分类号： G01N3/40 , G01N3/44
摘要： PROBLEM TO BE SOLVED: To make a load of an initial test force highly accurate at a Rockwell hardness test. SOLUTION: A sample stage 22 is raised by rotating a sample stage motor 26 forward until a load slightly smaller than a predetermined initial test force is applied by an indenter 15 to a sample T. After the motor 26 is stopped, a motor 30 is driven to press the indenter 15 to the sample T via a load lever 11. The initial test force is set accordingly. At this time, a press force of the indenter 15 detected by a load sensor 50 is fed back to a control part 60 for the motor 30, so that the initial test force can be set highly accurately.

2. 发明专利

JPH09257949A EARTHQUAKE MEASUREMENT DEVICE 失效
公开(公告)号：JPH09257949A
公开(公告)日：1997-10-03
申请号：JP9629596
申请日：1996-03-26
申请人： AKASHI CORP
发明人： NOMURA KOJI , TSUBOI DAISUKE , SUZUKI MIHO , KAGUMA HIDEAKI
IPC分类号： G01P15/08 , G01H9/00 , G01V1/16 , G01V1/22 , H01S3/00
摘要： PROBLEM TO BE SOLVED: To dispense with power supply to the underground and eliminate influence of thunder or electromagnetic noise by providing a reference laser beam generating means, resonance laser beam generation means in response to acceleration of earthquake, and earthquake acceleration speed detection means calculating the acceleration of earthquake, and performing the sending and receiving of signal between the underground and the ground in the form of optical signal. SOLUTION: In measuring earthquake, a reference resonance unit 1a and sensor resonance unit 1b composed of resonance unit of Fabry-Perot type are arranged at the position of earthquake detction part underground. Laser oscillators 2a, 2b, photo-detectors 11a, 11b, feed-back circuits 12a, 12b, frequency counting means 16 and earthquake acceleration calculating means 17 are arranged on the ground. Between the resonance units 1a, 1b and the apparatuses on the ground connection is made through only optical fibers 3a, 3b, 10a, 10b, 13, 14, 15. There is no power consumption in the units underground 1a, 1b so that no power is supplied from the ground to the underground.

3. 发明专利

JPH10132948A SEISMOSCOPE 失效
公开(公告)号：JPH10132948A
公开(公告)日：1998-05-22
申请号：JP30369596
申请日：1996-10-29
申请人： AKASHI CORP
发明人： KAGUMA HIDEAKI , NOMURA KOJI , SUZUKI MIHO
IPC分类号： G01V1/00 , G01H1/00 , G01V1/18 , G01V1/28
摘要： PROBLEM TO BE SOLVED: To provide a seismoscope which enables the reduction the necessary number of its seismic sensors, the detection of earthquake motion in any direction, the work of setting a warning value at any level from a remote position preventive maintenance work and also interchangeabulity between all the seismic sensors. SOLUTION: A seismoscope has a pair of earthquake motion sensors 10 and 11 which have the mutually same characteristics in frequency and sensitivity and mutual interchageability. An earthquake motion sensor support potion 12 supports each of the earthquake motion sensors 10, 11 under the arrangement such that each plane which includes each sensitivity axis of the sensors 10, 11 and the vertical axis intersects at the vertical axis, and the azimuth formed by each sensitivity axis of said sensors in said planes and the horizontal plane is determined to α deg.. The detected values by the two sensor 10, 11 are then processed at a calculation section to detect the P-wave and S-wave of earthquake, based on the components of seismic vertical movement and seismic horizontal movement detected each of the sensors 10 and 11.

你已经成功收藏专利！

检索式保存成功!

IPRDB