摘要:
A quartz oscillator for detecting a physicochemical change in a substance to be measured comprises a first electrode having at least two separate electrode portions for contact with the substance to be measured, and a second electrode. A chemical measuring instrument comprises a piezoelectric characteristic-measuring circuit having an output signal line connected to capacitors connected in parallel to the separate electrode portions of the first electrode of the quartz oscillator. An input signal line of the piezoelectric characteristic-measuring circuit is connected to the second electrode of the quartz oscillator. A voltage application circuit is connected to one of the separate electrode portions of the first electrode for applying a voltage between the separate electrode portions. An electrical current-measuring circuit is connected to the other of the separate electrode portions which is electrically grounded. The resonant characteristics of the quartz oscillator and the conductivity on the surfaces of the electrodes can be simultaneously and effectively measured.
摘要:
An optical scan type tunnel microscope based on a new principle, having higher resolution, is provided. The apparatus of the invention is comprised of at least an optical fiber 3 whose head portion is covered by an energy acceptor 6, a prism on which a sample which contains an energy donator 7 or is covered by the energy donator 7 is placed, a XY-axis transfer mechanism 9, XY-axis control mechanism 10, Z-axis transfer mechanism 11, Z-axis control mechanism 12, light source 13, optical system 14, and an optical detecting system 15.
摘要:
There is provided an optical memory medium comprising a flat plate modified on the surface thereof by a photolytic residual group, an optical recording apparatus comprising an optical probe having a microscopic aperture on the leading end thereof, a light source, X-Y-Z position control means, and a controller for controlling the apparatus as whole and an apparatus for reading the optical memory medium comprising the optical memory medium, a friction detecting probe, an X-Y-Z position control means and a controller for controlling the apparatus as a whole. Further, information is written and read with high density less than the wavelength of light using an apparatus for writing to and reading from an optical memory piezoelectric medium comprising the optical memory piezoelectric medium constituted by a piezoelectric element modified on the surface thereof by a photolytic residual group, an optical probe having a microscopic aperture on the leading end thereof, a light source, an X-Y-Z position control means, a means for measuring the resonance characteristics of the piezoelectric element and a controller for controlling the apparatus as a whole.
摘要:
An apparatus capable of measuring the topography and the optical characteristics of the surface of a sample at high resolution irrespective of the transmittance and the conductivity of the sample is realized. The apparatus comprises a probe, a light source for illuminating a sample with light, a photoelectric converter device and optics for receiving light transmitted through the sample or light reflected by the sample, a laser emitting laser light for detecting deflections of the probe, a condenser lens for directing the laser light to the rear surface of the probe, a detection system for detecting reflected light, a rough-motion mechanism and a fine-motion mechanism for moving the sample and the probe relative to each other, a control means for controlling the distance between the sample and the probe, and a computer for controlling the whole apparatus. The probe has a front end portion and a light-propagating body continuous with the front end portion. The front end portion and the light-propagating body are shaped like a hook. The apparatus observes the topography and the optical characteristics of the surface of the sample.
摘要:
There is provided an optical memory medium comprising a flat plate modified on the surface thereof by a photolytic residual group, an optical recording apparatus comprising an optical probe having a microscopic aperture on the leading end thereof, a light source, X-Y-Z position control means, and a controller for controlling the apparatus as whole and an apparatus for reading the optical memory medium comprising the optical memory medium, a friction detecting probe, an X-Y-Z position control means and a controller for controlling the apparatus as a whole. Further, information is written and read with high density less than the wavelength of light using an apparatus for writing to and reading from an optical memory piezoelectric medium comprising the optical memory piezoelectric medium constituted by a piezoelectric element modified on the surface thereof by a photolytic residual group, an optical probe having a microscopic aperture on the leading end thereof, a light source, an X-Y-Z position control means, a means for measuring the resonance characteristics of the piezoelectric element and a controller for controlling the apparatus as a whole.
摘要:
An ink storage container having a simply configured ink exchange function is provided, whereby the amount of stored ink is increased. An air flow control unit for controlling the flow of air between the inside and outside is disposed in an ink storage unit for storing ink. The air flow control unit includes: a valve element that is formed of an interconnected porous material and allows air to be exchanged between the inside and outside of the ink storage unit according to positive and negative changes in the internal pressure of the ink storage unit; and a liquid repellent membrane that has air permeability and liquid repellency and is disposed on an ink side of the valve element.
摘要:
In the brushless motor, a magnetic recording disk is to be mounted on a hub. A base plate rotatably supports the hub on the upper surface. A laminated core is fixed on the upper surface of the base plate and has a ring portion and a plurality of teeth that extend radially from the ring portion. Coils are wound around the plurality of teeth. A cylindrical magnet is fixed to the hub and is magnetized for driving with a plurality of poles along the circumferential direction and is arranged to radially face the plurality of teeth of the laminated core. A wire of one end of one of the coils is drawn out to the bottom surface of the base plate through a hole arranged on the base plate. The wire is connected to a driving line for supplying a current to the coils at a position other than the position of the hole on the base plate. The hole of the base plate is plugged with a resin.
摘要:
A stator core has 3N salient poles arranged circularly where N is a natural number of four or more but except a multiple of three. Coils are formed around the salient poles where winding directions of the coils is the same for the salient poles. A first, a second and a third crossover are formed between a first and an (N+1)-th salient pole, between the (N+1)-th and a (2N+1)-th salient pole and between the (2N+1)-th and the first salient pole, respectively, to forming a triangle before cutting within the salient poles arranged circularly. An end portion of each crossover is connected to a substrate.
摘要:
An optical waveguide probe comprises a cantilever having a longitudinal axis, a fixed end and a free end, the free end being elastically displaceable by application of a force to the cantilever. A probe is disposed on the free end of the cantilever for undergoing displacement in a direction generally perpendicular to a surface of a sample during elastic displacement of the cantilever. The probe extends in a direction generally perpendicular to the longitudinal axis of the cantilever. An optical waveguide is disposed in the cantilever and extends from the fixed end of the cantilever to the probe for transmitting light applied to or detected from the surface of the sample. The optical waveguide has a first optical waveguide portion extending generally along the longitudinal axis of the cantilever and a second optical waveguide portion extending generally in the direction of extension of the probe.
摘要:
A scanning near-field optic/atomic-force microscope comprises a holder for holding a sample immersed in a liquid, and a plate disposed over the holder for covering a surface of the liquid and for transmitting therethrough a laser light. A probe has an optical propagation body terminating in a distal end, and a light reflecting element disposed thereon, and the probe is immersed in the liquid. A light source emits a light which is introduced into the optical propagation body of the probe, which guides the light through the probe and out the distal end thereof to irradiate the sample. A detecting device detects information from the light irradiated on the sample and converts the information to an electric signal. A laser source irradiates the light reflecting element of the probe with a laser light for detecting a bending amount of the probe resulting from an interaction between the sample and the probe. An angle adjusting mechanism adjusts an optical axis of the laser light transmitted through the plate. A photoelectric conversion device receives the laser light reflected from the light reflecting element and converts the reflected light into an electric signal. A moving mechanism moves the sample relative to the probe, and a distance control device controls a distance between the surface of the sample and the distal end of the probe.