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1. 发明专利

JPS5546143A MEASURING METHOD OF MAGNETISM ANISOTROPY PATTERN 失效
公开(公告)号：JPS5546143A
公开(公告)日：1980-03-31
申请号：JP11944978
申请日：1978-09-28
申请人： ONO SOKKI SEISAKUSHO KK , YAMADA HAJIME , YAMADA YOSHIO
发明人： YAMADA HAJIME , YAMADA YOSHIO , WAKIWAKA HIROYUKI
IPC分类号： G01R33/12 , G01N27/72
摘要： PURPOSE:To increase the measuring accuracy of magnetic torque by cross sensor through the increased S/N, by applying the DC bias magnetic field toward excitation placing the measured object under high magnetic field range. CONSTITUTION:When the DC bias magnetic field Hdc is applied to the measured object 30, the magnetization (Is) is caused. While the magnetization advances from the stage of magnetic wall movement to the saturation range, it turns by the angle phi from the magnetization easy axis A and it depens on the opposing rotary angle theta. This magnatization (Is) is respectively Isc and Isd viewed from the measuring axes C and D, and Isc and Isd when the angle between the axes C and D is 90 degree (the same length of the both cores for excitation and detection) are as expressed as equation I, and this magnetized component is the magnetization of the pathe on the measured object between the legs 11-12, 12-22 and 11-22, 12-24. Accordingly, the detected output when DC bias magnetic field is applied, is V0=KIsHdc sin(theta-phi)NeNdomegaIe, and it shows the magnetic torque. Where Ne and Nd are number of turns of exciting and detection coils respectively, omega is excited angular frequency, and Ie is the excited current.

2. 发明专利

JPS5565154A DETECTION METHOD FOR WELDED JOINT 失效
公开(公告)号：JPS5565154A
公开(公告)日：1980-05-16
申请号：JP13873578
申请日：1978-11-10
申请人： ONO SOKKI SEISAKUSHO KK , YAMADA YOSHIO , YAMADA HAJIME
发明人： YAMADA HAJIME , YAMADA YOSHIO , WAKIWAKA HIROYUKI
IPC分类号： G01N27/72 , B23K31/00 , G01N27/82
摘要： PURPOSE:To enable to detect the position of joints as the electric output simply by using the cross sensor. CONSTITUTION:The cross sensor 1 is orthogonal to the exciting core 10 of U-shape and the detection core 20 each other, the legs 11 and 12 of the excitation core 10 are wound for the excitation coil 13 additionally, and the legs 21, 22 of the detection core 20 are wound differentially for the detection coil 23. The cross sensor 1 has opposing angle of 45 deg. to the welded joint 31 of the welded member 30, and the legs 11, 12, 21, 22 are held at the holding tool in the suitable distance each other. The DC bias magnetic field Hdc is applied from the direction orthogonal to the welded joint 31 to the welded member 30. As a result, the welded member 30 is in the range of high magnetic field and noise component due to the irregularity and ununiformity of heat treatment can be minimized.

3. 发明专利

JPS6131828B2 失效
公开(公告)号：JPS6131828B2
公开(公告)日：1986-07-23
申请号：JP11944978
申请日：1978-09-28
申请人： ONO SOTSUKI KK , YAMADA HAJIME , YAMADA YOSHIO
发明人： YAMADA HAJIME , YAMADA YOSHIO , WAKIWAKA HIROYUKI
IPC分类号： G01R33/12 , G01N27/72

4. 发明专利

JPS5923386B2 失效
公开(公告)号：JPS5923386B2
公开(公告)日：1984-06-01
申请号：JP13873578
申请日：1978-11-10
申请人： ONO SOTSUKI KK , YAMADA HAJIME , YAMADA YOSHIO
发明人： YAMADA HAJIME , YAMADA YOSHIO , WAKIWAKA HIROYUKI
IPC分类号： G01N27/72 , B23K31/00 , G01N27/82

5. 发明专利

JPS5342757A AUTOMATIC SELECTOR FOR OUTPUT SIGNALS OF MANY DETECTORS 失效
公开(公告)号：JPS5342757A
公开(公告)日：1978-04-18
申请号：JP11688476
申请日：1976-09-29
申请人： ONO SOKKI SEISAKUSHO KK
发明人： MAEHARA OSAMU , WAKIWAKA HIROYUKI
IPC分类号： G08C19/30 , G01D5/25

6. 发明专利

JPS52123647A DISPLACEMENT MEASURING DEVICE 失效
公开(公告)号：JPS52123647A
公开(公告)日：1977-10-18
申请号：JP3992976
申请日：1976-04-09
申请人： ONO SOKKI SEISAKUSHO KK
发明人： MAEHARA OSAMU , WAKIWAKA HIROYUKI
IPC分类号： G01B7/00 , G01B7/02 , G01B7/28 , G01R17/06

7. 发明专利

JPS55107903A MEASURING METHOD OF ECCENTRICITY 失效
公开(公告)号：JPS55107903A
公开(公告)日：1980-08-19
申请号：JP1461079
申请日：1979-02-09
申请人： ONO SOKKI SEISAKUSHO KK
发明人： WAKIWAKA HIROYUKI , MAEHARA OSAMU
IPC分类号： G01B7/00 , G01B7/312 , G01M13/02
摘要： PURPOSE:To enable the measurement of eccentricity independently of rotational frequency, by calculating the eccentricity from the difference and sum of the envelopes of the outputs of two electromagnetic pickup units facing each other across a gear secured on a rotary shaft. CONSTITUTION:Electromagnetic pickup units 1, 2 are so placed that they face each other across a gear 4 secured on a rotary shaft 3. Each pickup unit sends out a periodical voltage output (a) whose amplitude is proportional to the rotational frequency of the gear 4 and inversely proportional to the l-th power of the gap between the gear 4 and the pickup unit. The output (a) are changed into envelope output (b) by envelope conversion circuits 5, 6. The ratio of the difference between the envelope outputs to their sum is determined by a calculation circuit 7 and picked out. The output (y) of the circuit 7 is calculated according to a formula (1) where (C) denotes the sum of the gaps between the gear 4 and the pickup units 1, 2 and (x) denotes the eccentricity of the gear 4. The eccentricity of the gear 4 can thus be measured independently of its rotational frequency.

8. 发明专利

JPS51151568A DETECTOR 失效
公开(公告)号：JPS51151568A
公开(公告)日：1976-12-27
申请号：JP7530875
申请日：1975-06-20
申请人： ONO SOKKI SEISAKUSHO KK
发明人： MAEHARA OSAMU , WAKIWAKA HIROYUKI
IPC分类号： G01D5/245 , G01B7/02 , G01P3/42 , G01P3/487
摘要： PURPOSE:To obtain a detector electromagnetically detecting velocity or amount of displacement of an object to be measured, which is small in size and free from an effect of temperature variation.

9. 发明专利

JPS5140060A 失效
公开(公告)号：JPS5140060A
公开(公告)日：1976-04-03
申请号：JP11311374
申请日：1974-09-30
申请人： ONO SOKKI SEISAKUSHO KK
发明人： WAKIWAKA HIROYUKI
IPC分类号： H01Q7/06

10. 发明专利

JPS5412859A DEVICE OF DETECTING END PORTION 失效
公开(公告)号：JPS5412859A
公开(公告)日：1979-01-30
申请号：JP7821877
申请日：1977-06-30
申请人： ONO SOKKI SEISAKUSHO KK
发明人： WAKIWAKA HIROYUKI
IPC分类号： G01B7/00

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