摘要:
A surface texture measuring instrument provided with a near-field measuring unit (30) including a near-field probe (33) that forms a near-field light at a tip end thereof when a laser beam is irradiated, a laser source (35) that generates the laser beam to be irradiated on the near-field probe (33), a detection element (38) that detects scattering effect of the near-field light generated when the near-field probe (33) is moved close to a workpiece (1), and an actuator (32) that displaces the near-field probe (33) and the workpiece (1) in a direction moving close to/away from each other, includes: a laser length-measuring unit (20) that measures a relative distance between a reference position and the workpiece (1) in the vicinity of the tip end of the near-field probe (33) or a relative distance between the reference position and the near-field probe (33).
摘要:
A stylus structure (40) integrally incorporating a stylus (2), a vibrator (4), a detector (6), a first secondary magnetic circuit (12) and a second primary magnetic circuit (21), and a stylus support (30) integrally incorporating a first primary magnetic circuit (11) and a second secondary magnetic circuit (22) are mutually fittable, thereby achieving signal transmission by the respective magnetic circuits using no electrical contact.
摘要:
A method for manufacturing a honeycomb structure having slits is provided which permits accurate forming of fine slits to cut or grind a targeted cell array alone and which is suitable for application to mass production. The method provides a honeycomb structure having slits and a plurality of arrays of numerous cells aligned in parallel. The slits communicate with an external space and formed along the arrays. The slits are formed by protruding a slit forming member 4-toward the molded article during the extrusion step.
摘要:
A surface texture measuring probe (60) includes a probe head (65), a first supporting body (61), a second supporting body (62), a piezoelectric element (63) and a balancer (64). The first supporting body includes a first supporter (611) having an inner space, and a plurality of beams (613) respectively extending from equiangular arrangement positions of the first supporter toward the center and supporting the probe head (65) at the tip end thereof. The second supporting body (62) includes a second supporter (621) and a holder (622) supported by a plurality of beams (623) respectively extending from equiangular arrangement positions of the second supporter towards the center. The piezoelectric element (63) is disposed between the probe head and the holder, and formed to vibrate in an axial direction.
摘要:
N pieces of gains Gi are sequentially and temporarily set in a control circuit (23), and a stylus (131) is brought in contact with a workpiece (W) for conducting a temporary measurement. At this time, a sensor detection signal output from a sensor detection circuit (21) is filtered by a filter (31) to take out only a frequency component corresponding to a frequency of hunting generated in a closed loop (L) including the control circuit (23). Gains Gj that do not generate hunting in the closed loop (L) are extracted, and the largest gain Gj is set in the control circuit (23) in view of enhancement in responsivity etc. of the measurement. Alternatively, by pressing the stylus (131) into the workpiece (W), a displacement signal indicating a pressing amount and a sensor signal output from a sensor (13) are measured in accordance with a measurement load applied to the stylus (131) to calculate a gain Gs′ of the sensor (13) based on the two signals. By compensating the gain of the control circuit in accordance with the gain Gs′, frequency characteristics of the measurement control system can be kept to the largest even when the stylus (131) or the workpiece (W) is replaced with another one having different properties.
摘要翻译:在控制电路(23)中依次临时设置N个增益G i,并且触针(131)与工件(W)接触以进行临时测量。 此时,由传感器检测电路(21)输出的传感器检测信号由滤波器31滤波,仅取出对应于在包括控制电路的闭环(L)中产生的振荡频率的频率成分 (23)。 提取在闭环(L)中不产生搜索的增益G SUB>,并且在控制电路(23)中设置最大增益G SUB 提高测量的响应度等。 或者,通过将触针(131)按压到工件(W)中,根据施加到触针(131)的测量负载来测量表示按压量的位移信号和从传感器(13)输出的传感器信号 基于两个信号计算传感器(13)的增益G S S S S S SUB。 通过根据增益G“补偿控制电路的增益,即使当触针(131)或工件(W)的测量控制系统的频率特性也可以保持最大, 被具有不同性质的另一个替代。
摘要:
There are disclosed a method and a device for sealing an end portion of a porous structure having a columnar outer shape, such as a ceramic honeycomb filter, with a sealing material, so that the whole end portion can be uniformly coated with the sealing material, and a porous structure sealed at an end portion in a superior state by the method. In the method, an end portion of a porous structure 9 is sealed at an end face of the porous structure 9 having a columnar outer shape. A porous elastic material 13 having a predetermined thickness adhered on a planar base plate 15 is impregnated with a slurried sealing material, the porous elastic material 13 is pressed onto the end face of the porous structure 9 to coat the end portion of the porous structure 9 with the sealing material.
摘要:
A method of actuating a system comprising a movable component and an actuator configured to move the movable component comprises providing a control signal representative of a desired motion of the movable component. The control signal is supplied to one or more resonators. Each of the one or more resonators has a mode of oscillation representative of at least one elastic mode of oscillation of the system. The control signal is modified by subtracting from the control signal a signal representative of a response of the one or more resonators to the control signal. The actuator is operated in accordance with the modified control signal. Thus, undesirable elastic oscillations of the system which might occur if the system were operated with the original control system can be reduced.
摘要:
A stylus 20 is mounted directly on detector 32 and the detector 32 is mounted directly on a holder 10. Thus, an vibration-type contact detection sensor 1 is formed in a state in which the holder 10 and the stylus 20 are placed out of contact with each other and the stylus 20 and the detector 32 are placed in contact with each other. Therefore, attenuation of vibration and status change of the stylus 20 by the holder 10 can be circumvented and vibration and status change of the stylus 20 can be propagated directly to the detector 32, so that the detector 32 can detect vibration and status change of the stylus 20 with high sensitivity, and contact with a workpiece can be detected with high sensitivity.
摘要:
In a touch signal probe (10) having a stylus holder (11), a vibrator (12) supported by the stylus holder (11) and has a contact portion (12A) to contact to a workpiece at a distal end thereof, a vibrating means (13A) for vibrating the vibrator (12) in an axial direction resonantly, and a detecting means (13B) for detecting the contact by a change in the vibration of the vibrator (12) caused by the contact to the workpiece is provided. The vibrator (12) is supported by the stylus holder (11) at two support points (A) and (B) positioned with a node of vibration of the vibrator (12) therebetween. Since the vibrating means (13A) and the detecting means (13B) are disposed spanning over the two support points, the node of vibration can be formed between the support points A and B and the size of the touch signal probe (10) can be easily reduced.
摘要:
A contact location detecting mechanism (1) of a touch signal probe (10) includes a rotary motion generator (30) for scanningly moving a stylus (102) on a plane (A), a phase value detector (50) for detecting a phase value (&thgr;) indicating a rotation position of the scanning rotary motion, and a contact location detector (70)for detecting a contact location of a contact portion (102A) based on a detection signal value (V) detected by the detector (103B) and the phase value (&thgr;). Since the contact location of the contact portion (102A) can be detected by the contact location detector (70), the touch signal probe (10) can be used for a profiling measurement and continuous measurement of a workpiece.