Abstract: The present invention includes: an image capturer capturing an image of the sample to be measured; an image acquirer acquiring image data of the sample captured by the image capturer; a pattern searcher performing, on the image data of the sample acquired by the image acquirer, pattern searching process using a pattern image selected based on the sample and identifying a position in the image matching the pattern image; a profile extractor extracting a profile of the sample based on the position in the image identified by the pattern searcher; a calculator calculating a hardness measurement position of the sample based on the profile extracted by the profile extractor; and a measurer executing hardness testing on the sample based on the hardness measurement position calculated by the calculator and measuring the hardness of the sample.

Abstract: The present invention includes: an image capturer capturing an image of the sample to be measured; an image acquirer acquiring image data of the sample captured by the image capturer; a pattern searcher performing, on the image data of the sample acquired by the image acquirer, pattern searching process using a pattern image selected based on the sample and identifying a position in the image matching the pattern image; a profile extractor extracting a profile of the sample based on the position in the image identified by the pattern searcher; a calculator calculating a hardness measurement position of the sample based on the profile extracted by the profile extractor; and a measurer executing hardness testing on the sample based on the hardness measurement position calculated by the calculator and measuring the hardness of the sample.

Abstract: Indentation tester capable of adjusting vertical-direction positioning drift due to individual differences of an indenter when indenters are switched includes an adjustment mechanism. The adjustment mechanism adjusts relative vertical-direction positions of a displacement sensor movable portion and a displacement sensor fixed portion. The adjustment mechanism includes a first hollow disk having a spiraling surface formed on a bottom surface; and a second hollow disk having a spiraling surface formed on a top surface. The spiraling surface of the second hollow disk has a thread equal to that of the spiraling surface of the first hollow disk. The first hollow disk rests on the second hollow disk such that the bottom surface of the first hollow disk is overlaid on the top surface of the second hollow disk. The first hollow disk and the second hollow disk are capable of rotation on a center axis of an indenter column.

Abstract: A hardness test method performed by a controller of a hardness tester includes a first measurement process measuring an indentation curve (indentation history curve) for a plurality of times under a same condition with respect to a test specimen for verification in a predetermined environment; a setting process setting an acceptable range of variation in a load loading curve based on load loading curves (load loading history curves) of the plurality of the indentation curves obtained by the first measurement process; a second measurement process measuring an indentation curve under a same condition as the first measurement process with respect to the test specimen in an actual usage environment; and a judging process judging whether a load loading curve of the indentation curve measured by the second measurement process is within the acceptable range of variation in a load loading curve set by the setting process.

Abstract: Indentation tester capable of adjusting vertical-direction positioning drift due to individual differences of an indenter when indenters are switched includes an adjustment mechanism. The adjustment mechanism adjusts relative vertical-direction positions of a displacement sensor movable portion and a displacement sensor fixed portion. The adjustment mechanism includes a first hollow disk having a spiraling surface formed on a bottom surface; and a second hollow disk having a spiraling surface formed on a top surface. The spiraling surface of the second hollow disk has a thread equal to that of the spiraling surface of the first hollow disk. The first hollow disk rests on the second hollow disk such that the bottom surface of the first hollow disk is overlaid on the top surface of the second hollow disk. The first hollow disk and the second hollow disk are capable of rotation on a center axis of an indenter column.

Abstract: A hardness test method performed by a controller of a hardness tester includes a first measurement process measuring an indentation curve (indentation history curve) for a plurality of times under a same condition with respect to a test specimen for verification in a predetermined environment; a setting process setting an acceptable range of variation in a load loading curve based on load loading curves (load loading history curves) of the plurality of the indentation curves obtained by the first measurement process; a second measurement process measuring an indentation curve under a same condition as the first measurement process with respect to the test specimen in an actual usage environment; and a judging process judging whether a load loading curve of the indentation curve measured by the second measurement process is within the acceptable range of variation in a load loading curve set by the setting process.

Abstract: An indentation testing instrument including: a loading lever supported pivotally; an indenter provided on the loading lever; a displacement sensor movable section; a loading lever driving section; a reference lever supported pivotally having a same shaft center as the loading lever; a contactor provided on the reference lever as a positional reference of a tip portion of the indenter; a displacement sensor fixing section; a reference lever driving section; a stopper to stop the reference lever; a specimen surface reference measurement member to turn the loading lever from a state that the contactor touches the specimen surface, and to measure a first indentation depth amount; and a machine frame reference measurement member to turn the loading lever from a state that the reference lever touches the stopper and the contactor is spaced apart from the specimen surface, and to measure a second indentation depth amount.

Abstract: Disclosed an indentation testing instrument including: a loading lever supported pivotally; an indenter provided on the loading lever; an indenter linkage section; a loading lever driving section; a reference lever supported pivotally having a same shaft center as the loading lever; an indenter reference section provided on the reference lever as a positional reference of a tip portion of the indenter; an indenter position detection section; a reference lever driving section; a stopper to stop the reference lever; a specimen surface reference measurement member to turn the loading lever from the state that the indenter reference section touches the specimen surface, and to measure a first indentation depth amount; and a machine frame reference measurement member to turn the loading lever from the state that the reference lever touches the stopper and the indenter reference section is spaced apart from the specimen surface, and to measure a second indentation depth amount.

Abstract: A hardness testing apparatus has an indenter shaft having an indenter at a top thereof, a force motor for moving the indenter shaft in its axial direction and applying a predetermined test force to a sample through the indenter, an external force detection section for detecting an external force applied from outside of the hardness testing apparatus to the indenter shaft when the indenter shaft is moved by the force motor, and an external force adjustment and control section for controlling the force motor to apply the predetermined test force to the sample while deadening the external force detected by the external force detection section.

Abstract: A hardness testing apparatus has an indenter shaft having an indenter at a top thereof, a force motor for moving the indenter shaft in its axial direction and applying a predetermined test force to a sample through the indenter, an external force detection section for detecting an external force applied from outside of the hardness testing apparatus to the indenter shaft when the indenter shaft is moved by the force motor, and an external force adjustment and control section for controlling the force motor to apply the predetermined test force to the sample while deadening the external force detected by the external force detection section.

Abstract: A hardness testing apparatus has an indenter shaft having an indenter at a top thereof, a force motor for moving the indenter shaft in its axial direction and applying a predetermined test force to a sample through the indenter, an external force detection section for detecting an external force applied from outside of the hardness testing apparatus to the indenter shaft when the indenter shaft is moved by the force motor, and an external force adjustment and control section for controlling the force motor to apply the predetermined test force to the sample while deadening the external force detected by the external force detection section.

Abstract: A hardness testing apparatus has an indenter shaft having an indenter at a top thereof, a force motor for moving the indenter shaft in its axial direction and applying a predetermined test force to a sample through the indenter, an external force detection section for detecting an external force applied from outside of the hardness testing apparatus to the indenter shaft when the indenter shaft is moved by the force motor, and an external force adjustment and control section for controlling the force motor to apply the predetermined test force to the sample while deadening the external force detected by the external force detection section.

Abstract: An activation path simulation equipment and an activation path simulation method in accordance with the present invention divides a transistor circuit into a plurality of blocks with reference to pn junction nodes of the transistors included therein, and activation patterns are determined for each block using the characteristics of each transistor so as to efficiently create activation patterns of the transistor circuit. In this way, the number of activation patterns to be created can be decreased without creating unnecessary activation patterns, therefore the number of times of simulation can be decreased, which means that simulation speed increases.

Abstract: A special jointing metal device for advanced framework construction method includes a flat plate section having a rectangular shape and cylindrical sections which are provided to the flat plate section in one body along opposite edges of the flat plate section, so that wooden members are jointed to one another by inserting the special jointing metal device into holes each of which is formed in the corresponding wooden member.

Abstract: A special jointing metal device for advanced framework construction method includes a flat plate section having a rectangular shape and cylindrical sections which are provided to the flat plate section in one body along opposite edges of the flat plate section, so that wooden members are jointed to one another by inserting the special jointing metal device into holes each of which is formed in the corresponding wooden member.

Abstract: A logic circuit design apparatus capable of designing scan circuits for uses peculiar to the logic circuit and scan circuits for test pattern generation simplification with ease is disclosed. The logic circuit design apparatus comprises a storage part, an acquisition part, a user resister design part, and a data chain design part. The storage part stores a circuit data of a logic circuit whose logic design for normal operation. The acquisition part acquires a design data which specifies a user resister that is a scan circuit to be designed on the logical circuit whose circuit data is stored in the storage part. The user resister design part designs a user resister corresponding the design data acquired by the acquisition part. The data chain design part designs a data chain which is a scan circuit for test pattern generation simplification by utilizing the user register designed by the user register design part.

Abstract: A structural connector for connecting together wooden members. The structural connector is provided with at least one protrusion arm having a hole locking mechanism. Also, a method of making a structural joint.

Abstract: A jaw cylinder 30 includes a jaw cylinder body 31 and a folding jaw support 36 rotatably supported with respect to the jaw cylinder body 31, and two folding jaws 11 and 15 are attached to the jaw cylinder body 31 or the jaw cylinder support 36, respectively. The folding jaw 11 is rotated with respect to the folding jaw 15 so as to adjust a gap between the folding jaws 11 and 15 in accordance with the thickness of a product. At this time, a jaw cylinder driving helical gear 38 and a gap adjusting helical gear 39 are moved in an axial direction thereof by an adjusting unit 43 so that the jaw cylinder driving helical gear 38 or a folding cylinder driving helical gear 25 meshing with the helical gear 38 are rotated in a circumferential direction.