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7568381 |
Apparatus and method for surface property measurement with in-process compensation for instrument frame distortion
The present invention provides an apparatus and method for performing surface property measurements, such as workpiece hardness and other material property measurements, with in-process...
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7565841 |
Operating frequency selection method for hardness measurement system, operating frequency selection apparatus, and hardness measurement system
In a hardness measurement system, selecting an operating frequency is facilitated by using a phase shift circuit. A hardness sensor is connected to an operating frequency selection apparatus and in...
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7565831 |
Production method of indentation curve and hardness test method
A production method of an indentation curve is given, in which when an indentation curve showing a relationship between indentation force and indentation depth in a process of indenting an indenter...
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7543519 |
Device for high-precision generation and measurement of forces and displacements
A device for high precision generation and measurement of forces (both pressure and tension) and displacements along a single axis includes a shaft for transferring the forces along an axis X. At...
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7487051 |
Evaluating method of the fracture toughness using the continuous indentation method
The present invention relates to a method of evaluating the fracture toughness of a material using the continuous indentation technique. In the method of this invention, the stress coefficient,...
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7472603 |
Evaluating method of the residual stress determining method using the continuous indentation method
The present invention relates to a method of measuring residual stress and, more particularly, to a residual stress measuring method using a continuous indentation tester. Due to pile-up and...
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7458253 |
Method for evaluating fixing member and fixing belt and thermal fixing roller
In a method for evaluating a fixing member to fix a toner having a surface layer, a hardness test is carried out by applying a pressure deformation from the surface side of the fixing member, and...
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7454960 |
Hardness tester with a loading structure of the indenter independent of the stress frame connecting the indenter to the anvil
A hardness tester of a relatively large “cantilevering” and/or designed for permitting application of relatively large loads to the indenter may be constructed in a much slander and lighter...
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7424822 |
Micro-hardness measurement method and micro-hardness meter
A micro-hardness measurement method for calculating the hardness of a test sample by pushing an indenter in the test sample and forming an indentation thereon, including: a loading step for...
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7412870 |
Method and apparatus for dynamic impact testing
A method and apparatus wherein a material or object to be tested is placed on a base support. A stopper assembly having a stopper tip on one end in contact with the test material or object, and a...
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7380443 |
Hardness testing apparatus
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...
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7354617 |
Fixing belt and method for evaluating it
A method for evaluating a fixing belt includes forming a fixing belt which includes a substrate, an elastic layer laminated on the substrate, and a mold releasing layer laminated on the elastic...
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7352271 |
Probe and contour measuring instrument
A probe body ( 200 ) includes a middle closing portion ( 250 ) formed upright on a connector front portion ( 261 A) and a female thread ( 261 D) into which a male screw ( 110 ) is screwed. A sensor...
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7316155 |
Test table for measuring lateral forces and displacements
A test table for measuring lateral forces and displacements while simultaneously applying, if necessary, normal forces, particularly in nanoidenters and in scratch and wear testers. The test table...
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7302831 |
Scratch testing device
A device and method for scratch and/or mar testing the surface of a material specimen. In an embodiment, the scratch testing device comprises a scratching member. In addition, the scratch testing...
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7287420 |
Method of measuring properties of interfacial adhesion of medical device coatings
A method for measuring toughness of interfacial adhesion including applying a normal force with a probe to a surface of a coating joined to a major surface of a substrate of a medical device,...
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7287419 |
Method of measuring interfacial adhesion properties of stents
A method for measuring toughness of interfacial adhesion including applying a normal force with a probe to a surface of a coating joined to a major surface of a substrate of a medical stent,...
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7232415 |
System and method for noninvasively evaluating a limb suspected of compartment syndrome
A system and method are disclosed for noninvasively diagnosing limb compartment syndrome by measuring a quantitative modulus of hardness. In the preferred embodiment, a nonmovable pressure probe...
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7194896 |
Surface hardness distribution measuring method and apparatus
It is possible to blast air on a surface portion of a measured object from a hole of pressing means, project illumination light in a concentric pattern with an optical element and shoot the...
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7162932 |
Method for determining the modulus of elasticity of paper
In a method for determining the radial modulus of elasticity of paper or a corresponding web-like material that can be reeled or wound on a reel, the connection between the force and deflection of...
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7121136 |
Hardness testing apparatus
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...
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7102517 |
Test fixture for evaluating RF identification system and related methods
A test fixture for evaluating an RF identification system and related methods for evaluating an RF tag and/or an RF antenna, are disclosed. The test fixture provides predefined RF tag positions...
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7097625 |
System and method for noninvasively evaluating a limb suspected of compartment syndrome
A system and method are disclosed for noninvasively diagnosing limb compartment syndrome by measuring a quantitative modulus of hardness. In the preferred embodiment, a nonmovable pressure probe...
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7096720 |
Hardness tester
A hardness tester for measuring hardness of a sample by applying a predetermined test load to the sample with an indenter attached to an indenter attaching member so as to form an indentation on...
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7066012 |
Hardness testing device for use with a bicycle tire
A hardness testing device for a bicycle tire has a body with a surface thereon, an arm having a protrusion extending outwardly of the surface, a spring cooperative with a portion of the arm for...
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7040146 |
Soil or snow probe
A soil or snow probe which incorporates a load cell in the probe head and also an accelerometer so that a vertical strength profile of the snow or soil can be established. The device does not need...
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7021125 |
Process and apparatus for checking rod-like articles, in particular cigarettes
A process for checking rod-like articles, in particular cigarettes ( 12 ), and an apparatus which is suitable for carrying out the process, a moveable testing element ( 20 ), with mounted push rods...
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6993959 |
System and method for the analysis of atomic force microscopy data
A system and method for the analysis of AFM data is provided. The system and method can be used in conjunction with an atomic force microscopy (AFM) system including a cantilever with a tip used to...
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6983643 |
Ground assessment
For assessing ground quality, such as a condition of a racetrack, a handheld device has a shaft, a plate mounted to its bottom end, and a sensor body also mounted to the bottom of the shaft,...
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6945097 |
Characteristic strain and fracture resistance for scratch independently of indenter geometry
The invention involves an apparatus and method for calculating characteristics of materials, such as equivalent strain, using an indenter where the method used is independent of indenter geometry....
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6883367 |
Method for measuring elastic properties
This invention relates to a method for measuring elastic modulus of a sample object. This invention also relates to a method for correcting creep effects in the modulus measurement. The error due...
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6778916 |
Ball indenter utilizing FEA solutions for property evaluation
An automated indentation system based on finite element solutions or performing a non-destructive compression test by loading a compressive indentation load (P) and calculating a elastic modulus...
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6755075 |
Ultra micro indentation testing apparatus
An ultra micro indentation testing apparatus comprises: a lever stand provided with a center lever having a silicon probe and a diamond indenter disposed therein; a moving mechanism for moving the...
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6725708 |
Impression forming mechanism and method, and hardness testing apparatus and method
A hardness testing apparatus comprises a sample table mounting a sample thereon, a loading arm having an indentor at its free end, a loading arm operation controlling unit, an electromagnetic...
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6721667 |
Method and system for measuring properties of deformable material specimens
Disclosed is a system for measuring mechanical properties of a deformable material specimen. The system includes a first gripping device for removably securing a first end of the specimen, a second...
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6718820 |
Apparatus for indentation test and method for measuring mechanical properties using it
The present invention relates to an apparatus for indentation test, for measuring mechanical properties in the field. The present invention provides an apparatus which is suitable for measuring...
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6691564 |
Hardness tester
A hardness tester generally comprises a tester assembly is supported on a frame assembly. The tester assembly has a tester housing that supports a motor drivingly connected to a load cell and an...
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6643599 |
Automated machine and method for fruit testing
A fruit tester provides a motor driven intrusive plunger with associated sensors to determine digital data indicative of plunger position, force resisting plunger intrusion and constant pressure...
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6634217 |
Live line method and tool for identifying electrical conductors
The present invention provides a method of live testing of the hardness of a target electrical distribution wire having a known gauge, and a tool for same, the method comprising: a) providing a...
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6612150 |
Method and device for measuring abrasive properties of paper and other sheet materials
The present invention provides a device for testing the abrasiveness of paper and other sheet materials. The device comprises a punching module, a feed module for moving the material, a holding...
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6581446 |
Determination of adhesion strength of HVOF coating by spherical indentation
A method for determining the adhesion strength of any HVOF-coating/substrate system. This method applies a spherical indentor to the coated part in a loading-unloading cycle. During the loading...
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6568250 |
Apparatus and method for determining residual stress
An apparatus measures residual stress in a sample under test by measuring the penetration of an indenter on a unprocessed sample under test, and after processing of the sample under test, measuring...
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6553814 |
Method and device for determining the hardness/elasticity and/or other properties of vegetables or fruit
The present invention comprises a method for determining the hardness of a vegetable or fruit, wherein the vegetable or fruit is rotated, wherein an impactor element is carried close to the surface...
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6539781 |
Method and device for determining the hardness of products such as fruit
In a method for determining the hardness of a product, for instance fruit, during a measuring cycle, comprising: supporting the product, tapping the product with a tapping device at least one...
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6536263 |
Gauges for testing sand in or for golf course sand bunkers
A sand penetrability gauge for golf course bunker sand, having a probe shaft for penetrating into bulk sand, a weight or spring for reproducibly applying force to advance the probe shaft into bulk...
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6520004 |
Test apparatus and method of measuring mar resistance of film or coating
This invention concerns a test apparatus and procedure used for quantitative and qualitative characterization of scratch and mar behavior of films or coatings, more particularly automotive...
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6516655 |
Device and method for testing sheet metal deformation
A method and device for testing a metal part for weakness to deformation. The device includes a motor that moves a shaft and a load applicator toward and away from a part being tested. The motor is...
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6513369 |
In-situ non-destructive elastic recovery tester
A method for the non-destructive, in-situ assessment of a resilient elastic substrate, said method comprising the steps of: applying detector means to a surface of said substrate; urging said...
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6502449 |
Test strip holder for supporting test strips measuring the intensity of shot peening in cavities
A holder for mounting a test strip for measuring the intensity of shot peening in internal cavities includes a receptacle receiving any of multiple inserts configured to form a segment of an...
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6499339 |
Method and an apparatus for measuring the load-bearing capacity of a road surface
A method and an apparatus for determining the resiliency of a road surface include a vehicle ( 1 ) that is caused to move along the road surface ( 3 ) and that exerts a load on said surface with...
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