Hitachi Construction Machinery Co., Ltd.

Hitachi Kenki Fine Tech Co., Ltd.

Tooru Kurenuma

Hiroshi Kuroda

Takenori Hiroki

Takafumi Morimoto

Ken Murayama

Yukio Kenbou

Yoshiyuki Nagano

Shigeru Miwa

Yuuichi Kunitomo

Hiroaki Yanagimoto

Hideto Ishibashi

Tadashi Fujieda

Kazuo Fujishima

Kishio Hidaka

Mitsuo Hayashibara

Hiroshi Ogura

Kazuyoshi Yamada

Kunio Kashiwagi

Yasushi Minomoto

Tooru Shinaki

Yoshiyuki Nag'No

A probe is made by attaching a carbon nanotubeto a mounting base end, which eliminates the effects of a carbon contamination film, to increase the bonding strength, increase the conductivity of the probe, and strengthen the bonding performance thereof by coating the entire circumference of the nanotube and the base with a coating film, rather than coating just one side. The work of mounting the carbon nanotube and mounting base end are performed under observation by a microscope. Further, the carbon contamination filmformed by an electron microscope is stripped off at a stage before bonding by the coating film.

Probe manufacturing method, probe, and scanning probe microscope

The probe tip movement control method of the scanning probe microscope is used for a scanning probe microscope provided with a cantileverhaving a probe tipfacing a sample. The atomic force occurring between the probe tip and sample is measured when the probe tip scans the surface of the sample. X-, Y-, and Z-fine movement mechanisms, andare used to relatively change the positions of the probe tip and sample. It is possible to maintain a high measurement accuracy and enable scan movement of a probe tip on a sample surface by simple control when measuring a part having a gradient in measurement of an uneven shape on a sample surface.

Scanning type probe microscope and probe moving control method therefor

A scanning probe microscope has a cantilever with a probe facing a sample and a measurement section for measuring a physical quantity occurring between the probe and the sample when the probe scans a surface of the sample, holding the physical quantity constant to measure the surface of the sample. The above microscope further has a probe tilt mechanism, an optical microscope etc. for detecting a position of the probe when the probe is tilted, and a control section for setting the probe in a first tilt posture and second tilt posture, measuring a surface of the sample by the measurement section at each tilt posture, detecting the position of the probe at least at the second tilt posture by the optical microscope etc., and making a measurement location at the second tilt posture match with a measurement location at the first tilt posture for measurement.

Scanning probe microscope and measurement method using the same

A hydraulic excavator has an area limiting excavation control function for controlling operation of a front working device so as to form a target work plane. A remote control terminal for wirelessly maneuvering the hydraulic excavator is provided in a management office so that entry of setting information of a target excavation plane and remote maneuvering can be performed from the side of the remote control terminal . A display unit for displaying a positional relationship between the hydraulic excavator and the target excavation plane is further provided in the remote control terminal. An operator can remotely set the target excavation plane while looking at a screen of the display unit , and also form the target excavation plane by remotely maneuvering the front working device using a joystick with the aid of a control function of an area limiting excavation controller. As a result, the remote setting of the target excavation plane and the remote maneuvering of the hydraulic excavator can be easily performed.

Remote control system and remote setting system for construction machinery

An automatically operated shovel has a shovel and an automatic operation controller arranged on the shovel to store by a teaching operation plural working positions of the shovel, which comprises at least a digging position, and also to cause by a reproduction operation the shovel to repeatedly perform a series of reproduction operations on the basis of the stored plural working positions. The automatic operation controller is provided with servo control means for outputting, as a servo control quantity, a sum of a compliance control quantity and a pressure control quantity. The compliance control quantity is obtained by multiplying with a stiffness gain a difference between a target position of each operational element of the shovel, the target position comprising angle information indicative of an operational target of the operational element, and a current position of the operational element, the current position comprising current angle information on the operational element. The pressure control quantity is obtained by multiplying with a pressure gain a difference between a target pressure, which serves as a target when the operational element of the shovel is in contact with an object under digging, and a current pressure of the operational element. The stiffness gain and the pressure gain are settable at varied values depending on the working positions.

Automatically operated shovel

A profiling control system for a multiple-degree-of-freedom working machine having at least two degrees of freedom has at least one force control loop. The control loop has a detector for detecting the force applied to a working tool from a work surface, an error detector for determining the difference between the detected force and a command f.sub.ro of urging force of the working took, a processor for computing a velocity command u.sub.z of the working tool on the basis of the determined error, a drive system for moving the multiple-degree-of-freedom working machine on the basis of the velocity command. Further, the multiple-degree-of-freedom working machine is moved on the basis of a velocity command u.sub.x. The control system provides a moving velocity v.sub.zof in an urging direction of the working tool, which occurs as the result of a gradient tan .alpha. of the work surface with respect to a feed direction when the working tool is fed with the velocity command u.sub.x and while the working tool is urged against the work surface with the force command f.sub.ro. Also, a controlled variable, either f.sub.ro or u.sub.z of the force control loop is corrected by using the moving velocity v.sub.zof in the urging direction, thereby canceling the force f.sub.of due to the velocity v.sub.zof.

Profiling control system for given curved surface

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Tsuchiura, Japan

Tooru Kurenuma