摘要:
A micropipette usable for producing a biochip inclusive of DNA micro arrays capable of arraying and fixing droplets of a micro-volume on a substrate in a high density includes a main body, at least one cavity for storing a sample, at least one ejection port, a piezoelectic/electrostrictive element mounted on the outer surface of the main body, and at least one sample inlet port for supplying sample from the outside. A sample that is temporarily stored in the cavity is discharged from at least one ejection port, by virtue of the movement of the piezoelectric/electrostrictive element, to outside of the micropipette via a through hole in a nozzle portion formed in the pipette main body. The nozzle portion through hole has three or more projection radially protruding from the center of the through hole and having a specific shape.
摘要:
When genetic analyses are performed using the DNA microarray of the present invention, the inspection accuracy is improved. A sample solution is supplied onto a base plate 10 to prepare the DNA microarray 20 which includes a large number of spots 80 containing capture solutions arranged on the base plate 10. The capture solutions are adapted to specifically react with a specimen and provide information about a structure within the specimen. In the microarray 20, the planar configuration of the spots 80 are substantially circular, and a plurality of spots having different spot sizes are formed on the base plate.
摘要:
A DNA chip includes a large number of minute spots formed by dripping sample solutions onto a base plate. The base plate is provided with positional deviation-correcting means for displacing the spots and automatically correcting any positional deviation of each of the spots. The positional deviation-correcting means includes any one of at least one projection, at least one recess and electric field-generating means for providing charged states on the base plate centered at a correct position for each of the spots supplied on the base plate.
摘要:
A liquid-drop spraying device is provided which can perform a stable liquid discharge without producing air bubbles in the liquid of the pressurized room as well as the amount of liquid supply per unit time is increased. The liquid can be flowed into the pressurized room uniformly and without entrainment of bubbles from the nozzle side by making an initial discharge (or charge) time constant larger than a subsequent discharge (or charge) time constant, which in turn allows liquid in the pressurized room to be replaced by slow suction followed by fast suction.
摘要:
A chip peeling apparatus has a plurality of protrusions which include first protrusions and second protrusions lower than the first protrusions. A vacuum pump communicates through holes with grooves defined between adjacent ones of the protrusions. A UV sheet is attached to chips, and the chips are supported in the vicinity of their corners by the tops of the first protrusions. When the vacuum pump is actuated, the chips and streets disposed between the chips are lowered, and the chips are curved and supported in abutment against the tops of the second protrusions. Each of the chips is gradually peeled off the UV sheet under a force tending to recover the original shape of the curved sheet. The chip peeling apparatus is effective in preventing the chips from being damaged and positionally deviated when the chips are attracted and carried.
摘要:
A vibration gyro sensor is constructed as follows. Namely, a detecting piezoelectric/electrostrictive element 12, which detects displacement generated in a direction perpendicular to a direction of vibration of a vibrator 2 when the vibrator is rotated, is provided on a detecting section. The detecting section is constructed by an integrated fired product made of ceramics together with the vibrator 2 and a support base 4. The detecting section is constructed by a first plate-shaped section 6 which is more thin-walled than the vibrator 2 and which has its principal surface extending in the direction of vibration. The piezoelectric/electrostrictive element 12 is formed in an integrated manner on the first plate-shaped section 6 in accordance with a film formation method. Further, a thin-walled second plate-shaped section 8, which is provided for decreasing rigidity in the direction of vibration and facilitating the vibration for the vibrator 2, is formed in an integrated manner so that its principal surface extends in the direction perpendicular to the direction of vibration. Accordingly, it is possible to obtain the vibration gyro sensor made of ceramics having excellent sensitivity, in which the characteristics of the vibrator are scarcely affected by an ambient magnetic field, processing or machining can be easily performed, and the electric characteristics can be advantageously adjusted.
摘要:
A vibration gyro sensor is constructed as follows. Namely, a detecting piezoelectric/electrostrictive element 12, which detects displacement generated in a direction perpendicular to a direction of vibration of a vibrator 2 when the vibrator is rotated, is provided on a detecting section. The detecting section is constructed by an integrated fired product made of ceramics together with the vibrator 2 and a support base 4. The detecting section is constructed by a first plate-shaped section 6 which is more thin-walled than the vibrator 2 and which has its principal surface extending in the direction of vibration. The piezoelectric/electrostrictive element 12 is formed in an integrated manner on the first plate-shaped section 6 in accordance with a film formation method. Further, a thin-walled second plate-shaped section 8, which is provided for decreasing rigidity in the direction of vibration and facilitating the vibration for the vibrator 2, is formed in an integrated manner so that its principal surface extends in the direction perpendicular to the direction of vibration. Accordingly, it is possible to obtain the vibration gyro sensor made of ceramics having excellent sensitivity, in which the characteristics of the vibrator are scarcely affected by an ambient magnetic field, processing or machining can be easily performed, and the electric characteristics can be advantageously adjusted.
摘要:
A process for forming a film on a ceramic substrate or on a fired film formed thereon includes coating, on a ceramic substrate or on a fired film formed thereon, a material which becomes a metallic film or a ceramic film upon firing, to form an as-coated film, irradiating the as-coated film with an energy beam which does not damage the ceramic substrate or the fired film formed thereon to such an extent that it becomes useless and which can decompose and remove the as-coated film, to trim the unrequired portion(s) of the as-coated film, and firing the trimmed as-coated film to form a desired film. The film can be formed on a ceramic substrate or on a fired film formed thereon while the damage to the substrate or the fired film is minimized.
摘要:
There is provided a method for testing a piezoelectric/electrostrictive actuator, wherein the displacement of a piezoelectric/electrostrictive actuator is estimated on the basis of the relations between one or more frequency characteristic values selected from the group consisting of the heights and areas of the peaks of the resonance waveforms and the difference of the maximum and minimum of the first order or first to higher orders of the resonance frequency characteristic values of the piezoelectric/electrostrictive actuator and the k-th order (k=1 to 4) of the first or first to higher orders of resonance frequencies. According to this piezoelectric/electrostrictive actuator testing method, a piezoelectric/electrostrictive actuator can be tested with high precision without actually driving the same as a product and without being accompanied by any disassembly/breakage.
摘要:
A manufacturing method for a thin board-shaped fired piezoelectric body has: a step of manufacturing, using a piezoelectric material, a green sheet having a ratio T/L of 0.000002 to 0.2, where T is the thickness and L is the maximum length within the surface after firing; and a step of obtaining the thin board-shaped fired piezoelectric body with reinforcing members for firing by performing firing after disposing the reinforcing members for firing by scattering at least on one surface of the green sheet so as to exclude the areas to be the thin board-shaped fired piezoelectric body later. The piezoelectric body which has excellent planarity and a thin board shape can be manufactured at low cost by the method.