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1.发明申请公开(公告)号：US20220373442A1
公开(公告)日：2022-11-24
申请号：US17327686
申请日：2021-05-22
申请人： Vishal Khosla , Nick Doe , Michael Vinogradov-Nurenberg , Jun Xiao , Gautam Char
发明人： Vishal Khosla , Nick Doe , Michael Vinogradov-Nurenberg , Jun Xiao , Gautam Char
摘要： A method for determining hardness of a material by implementing 3D imaging is proposed. The imaging provides database of points on the 3D imprint in an orthogonal X-Y-Z coordinate system. An imaginary image of the imprint is formed by finding a plurality of intersection points obtained by intersecting the imprint image in X-Y plane with the X-Z plane movable in the Y-axis direction for obtaining a plurality of points of intersection that lay in the X-Y plane. Statistical processing of the plurality of the points of intersection makes it possible to form imaginary image of the imprint in the X-Y plane and to use the reference dimension of the obtained imaginary image as a parameter for insertion into the hardness calculation formula.
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2.发明授权公开(公告)号：US11988642B2
公开(公告)日：2024-05-21
申请号：US17327686
申请日：2021-05-22
申请人： Vishal Khosla , Nick Doe , Michael Vinogradov-Nurenberg , Jun Xiao , Gautam Char
发明人： Vishal Khosla , Nick Doe , Michael Vinogradov-Nurenberg , Jun Xiao , Gautam Char
CPC分类号： G01N3/068 , G01N3/42 , G06T7/60 , G06T7/74 , G06T2200/04 , G06T2207/20072
摘要： A method for determining hardness of a material by implementing 3D imaging is proposed. The imaging provides database of points on the 3D imprint in an orthogonal X-Y-Z coordinate system. An imaginary image of the imprint is formed by finding a plurality of intersection points obtained by intersecting the imprint image in X-Y plane with the X-Z plane movable in the Y-axis direction for obtaining a plurality of points of intersection that lay in the X-Y plane. Statistical processing of the plurality of the points of intersection makes it possible to form imaginary image of the imprint in the X-Y plane and to use the reference dimension of the obtained imaginary image as a parameter for insertion into the hardness calculation formula.
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公开(公告)号：US20220196525A1
公开(公告)日：2022-06-23
申请号：US17127116
申请日：2020-12-18
申请人： Vishal Khosla , Nick Doe , Ming Chan , Michael Vinogradov-Nurenberg , Jun Xiao , Gautam Char
发明人： Vishal Khosla , Nick Doe , Ming Chan , Michael Vinogradov-Nurenberg , Jun Xiao , Gautam Char
摘要： Proposed are a method and apparatus for maintaining constancy of force in contact between a test probe and test object, which are in a state of relative motion, e.g., in a material testing machine. This is achieved by providing the material testing machine with a leveling stage that includes an adjustable leveling mechanism for eliminating deviations of the support surface of the test sample table from flatness and parallelism to a reference plane that passes through the point of contact of the probe with the object perpendicular to the test probe. The mechanism includes springing elements and thrust elements that pass through the carrier member and rest against the springing elements for adjusting thrust forces applied to the springing elements for adjusting a position of the sample supporting surface relative to a virtual reference plane, which passes through the contact point perpendicular to the longitudinal axis of the probe.
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公开(公告)号：US11579056B2
公开(公告)日：2023-02-14
申请号：US16902781
申请日：2020-06-16
申请人： Gautam Char , Nick Doe , Vishal Khosla , Ming Chan , Michael Vinogradov-Nurenberg , Jun Xiao
发明人： Gautam Char , Nick Doe , Vishal Khosla , Ming Chan , Michael Vinogradov-Nurenberg , Jun Xiao
摘要： A universal material tester with two or more consecutively arranges test units has a test tool supporting carriage, which is provided with a removable partition that allows conversion of the test-unit installation socket from a multiple test unit holder into a single test-unit holder, or vice versa. An advantage of the tester is a possibility of expanding dynamic range of measurements by using two or more test units, which are installed in series at one setting and can be used in sequential tests without replacement but with different measurement ranges. This broadens the dynamic measurement ranges and allows revealing material properties otherwise unattainable. The test units may be combined with an imaging device installed in series with the test tools that engage the sample physically.
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公开(公告)号：US20210389218A1
公开(公告)日：2021-12-16
申请号：US16902781
申请日：2020-06-16
申请人： Gautam Char , Nick Doe , Vishal Khosla , Ming Chan , Michael Vinogradov-Nurenberg , Jun Xiao
发明人： Gautam Char , Nick Doe , Vishal Khosla , Ming Chan , Michael Vinogradov-Nurenberg , Jun Xiao
摘要： A universal material tester with two or more consecutively arranges test units has a test tool supporting carriage, which is provided with a removable partition that allows conversion of the test-unit installation socket from a multiple test unit holder into a single test-unit holder, or vice versa. An advantage of the tester is a possibility of expanding dynamic range of measurements by using two or more test units, which are installed in series at one setting and can be used in sequential tests without replacement but with different measurement ranges. This broadens the dynamic measurement ranges and allows revealing material properties otherwise unattainable. The test units may be combined with an imaging device installed in series with the test tools that engage the sample physically.
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公开(公告)号：US10258239B2
公开(公告)日：2019-04-16
申请号：US15608913
申请日：2017-05-30
申请人： Vishal Khosla , Nick Doe , Ming Chan , Jun Xiao , Gautam Char
发明人： Vishal Khosla , Nick Doe , Ming Chan , Jun Xiao , Gautam Char
摘要： Proposed is a method for in-line testing and surface analysis of test material with participation of Raman spectroscopy wherein the apparatus has a column with a plurality of test units at least one of which is a wear test unit and another is a Raman spectrometer. The sample is located on a rotary table under the test units. By sequentially removing the material of the sample to a predetermined depth and then conducting the surface analysis with the use of the Raman spectrometer, it becomes possible to analyze distribution of the material components in the depth direction from the surface of the sample. delivery beams to the longitudinal axis of the Raman spectrometer
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公开(公告)号：US10179386B2
公开(公告)日：2019-01-15
申请号：US15390483
申请日：2016-12-24
申请人： Vishal Khosla , Nick Doe , Jun Xiao , Ming Chan , Gautam Char
发明人： Vishal Khosla , Nick Doe , Jun Xiao , Ming Chan , Gautam Char
摘要： Proposed is a torque measurement tester for testing hole-treating rotary tools used on hole treating operations such as drilling, tapping, reaming, countersinking, or the like under real operation conditions for determining the most optimal operations parameters. The torque measurement unit consists of a package of three sensor units, in which the first unit is connected to the frame of the tester via pressure sensors for measuring a thrust force acting in the Z-axis direction, the second sensor unit measures forces acting on the tool in the direction of the X-axis, and the third sensor unit measures forces acting in the Y-axis direction. All measurements are carried out irrespective of each other without mutual effect on the measurement data. The third unit resiliently supports the rotary tool relative to the second unit, while the second unit is connected to the first sensor unit.
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8.发明申请公开(公告)号：US20180344166A1
公开(公告)日：2018-12-06
申请号：US15608913
申请日：2017-05-30
申请人： Vishal Khosla , Nick Doe , Ming Chan , Jun Xiao , Gautam Char
发明人： Vishal Khosla , Nick Doe , Ming Chan , Jun Xiao , Gautam Char
CPC分类号： A61B5/0075 , A61B5/00 , A61B5/0071 , A61B5/0082 , G01N3/56 , G01N21/62 , G01N21/65 , G01N21/658 , G01N2201/0826
摘要： Proposed is an apparatus and method for in-line testing and surface analysis of test material with participation of Raman spectroscopy wherein the apparatus has a column with a plurality of test units at least one of which is a wear test unit and another is a Raman spectrometer. The sample is located on a rotary table under the test units. By sequentially removing the material of the sample to a predetermined depth and then conducting the surface analysis with the use of the Raman spectrometer, it becomes possible to analyze distribution of the material components in the depth direction from the surface of the sample. delivery beams to the longitudinal axis of the Raman spectrometer.
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公开(公告)号：US10180367B2
公开(公告)日：2019-01-15
申请号：US15390484
申请日：2016-12-24
申请人： Vishal Khosla , Nick Doe , Jun Xiao , Ming Chan , Gautam Char
发明人： Vishal Khosla , Nick Doe , Jun Xiao , Ming Chan , Gautam Char
摘要： Proposed is a method of determining optimal operation conditions for treating holes with a rotary tool by performing a hole treatment operation on a tester under various treatment conditions which are similar to the use of the tool in the industrial production on a real manufacturing equipment. The method consists of changing the treatment conditions and determining those operation parameters at which the treated hole is most optimally satisfies the given technical requirements. A criterion for evaluation of these optimal conditions is equality of pair forces acting on the rotary tool in the X- and Y-axis directions since such a situation prevents sidewise deviation of the tool from the direction of the thrust force applied in the Z-axis direction. The above condition is provided by the specific structure of the tester used for carrying out the method.
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公开(公告)号：US10024776B2
公开(公告)日：2018-07-17
申请号：US15214623
申请日：2016-07-20
申请人： Vishal Khosla , Nick Doe , Jun Xiao , Ming Chan , Gautam Char
发明人： Vishal Khosla , Nick Doe , Jun Xiao , Ming Chan , Gautam Char
摘要： An apparatus for in-line testing and surface analysis of a sample contains a base which stationarily supports a column and moveably supports an optical microscope, an interferometer, and at least test unit such as a scratch and abrasive wear tester that are moveable on the column in the Z-axis direction. A sample secured on a sample table, which is supported by a replaceable tribology drive unit on an X-stage that may position the sample under the microscope, interferometer, or test unit. Depending on the type of the test, the replaceable tribology unit may impart to the sample either a linear reciprocating movement or a rotating movement. The apparatus may operate in an automatic mode and is provided with a central processing unit that control movements of all moveable units through respective drivers via controllers connected to the central processing unit.
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