摘要:
A recording medium detecting system includes a magnetic field-generating unit that generates an alternating magnetic field in a predetermined particular region, a detecting unit provided close to the particular region, that detects a change in magnetic flux density not smaller than a predetermined magnetic-flux-density difference B2, and a recording medium, containing multiple magnetic wires made of a magnetic material and formed in a wire shape having a predetermined length, that causes a large Barkhausen effect when the alternating magnetic field is applied. A magnetic-flux-density difference B1 detected by the detecting unit at an installation position thereof when the recording medium is placed in the particular region is not smaller than the magnetic-flux-density difference B2.
摘要:
Disclosed is a recording paper containing pulp fibers and magnetic fibers, in which the fiber orientation ratio is within a range selected from the range from 1.8 to 3.0 and the range from 1.0 to 1.3 as measured by an ultrasonic wave velocity method.
摘要:
A sheet body including plural magnetic wires arranged and embedded along a longitudinal direction of the sheet body at a predetermined interval, wherein each of the magnetic wires is formed by two kinds of magnetic bodies with different coercive forces into a linear shape of a predetermined length, and the magnetic wire column with stronger coercive force is magnetized, thereby preventing the magnetic wire column with weaker coercive force from generating a response signal to an alternating magnetic field.
摘要:
A medium comprises a magnetic body which generates a signal when a magnetic field is applied thereto, wherein the magnetic body has two or more easy magnetization directions and the magnetic body forms information that identifies the medium based on the signal generated when the magnetic field is applied to the magnetic body.
摘要:
A sheet includes a pulp fiber and a linear magnetic material. The linear magnetic material has a substantially large Barkhausen effect. The linear magnetic material also has irregularities at an outer periphery of the linear magnetic material. The sheet in which the magnetic material is inhibited from being exposed at both surfaces of the sheet can be provided.
摘要:
A detection system includes: an acquiring unit that acquires document data representative of a document which includes a plurality of pages; a selector that selects, for each page of the document, a first printing sheet which contains a detected element or a second printing sheet which does not contain the detected element such that the first printing sheet is selected for at least one page; a supplier that supplies the first or the second printing sheet selected by the selector; a printer that sequentially prints the document acquired by the acquiring unit on the printing sheets supplied by the supplier; a detector that detects a detected element contained in a printing sheet on which the document is printed by the printer; and a reporter that reports detection of the detected element in a printing sheet by the detector.
摘要:
A baggage management gate including an exciting coil, a detecting coil and signal processing unit. The exciting coil forms an alternating magnetic field in a passage to an area from which manages objects to be carried in or carried out. The detecting coil detects a variation in the alternating magnetic field when magnetization of a magnetic material showing a large Barkhausen effect is reversed in the alternating magnetic field. The signal processing unit determines as to whether the magnetization reversal occurs in the alternating magnetic field due to the large Barkhausen effect or not, based on a signal detected by the detecting coil. The signal processing unit includes amplifier that amplifies the signal detected by the detecting coil with plural different amplification factors and output the amplified signals with each of the plural different amplification factors.
摘要:
In an information holding method according to the present invention, plural blocks are defined by an evenly sectioned surface of a sheet material in predefined positions, and predetermined information is expressed in the whole area of the sheet material by the presence/absence of information for each of the blocks.
摘要:
A recording medium includes a magnetic material and a pulp-fiber, a minimum value of shortest distances between the magnetic material and an edge of the recording medium substantially parallel to the pulp-fiber orientation direction being about 1 mm or more.
摘要:
A medium comprises a magnetic body which generates a signal when a magnetic field is applied thereto, wherein the magnetic body has two or more easy magnetization directions and the magnetic body forms information that identifies the medium based on the signal generated when the magnetic field is applied to the magnetic body.