The invention relates to a method for determining material dimensions of a longitudinal profiled section (2) during a sawing process, in which a saw blade (3) is advanced, the longitudinal profiled section (2) being machined by said saw blade (3) along a saw groove during this time; advancement position data of said saw blade (3) along the advancement path (s) being determined and, during this sawing operation, additional measurement data being determined from the group of sawing force (F.sub.s) or another variable which corresponds to the sawing force (F.sub.s). The invention is characterised in that an actual profile is determined from the advancement position data and said additional measurement data.

A workstation for measuring dimensions includes an operator zone, a first fixture, a second fixture, a component delivery device, a gauge, and a collaborative robot. The second fixture is accessible to an operator in the operator zone. A component delivery device deposits a first component onto the first fixture. The envelope of the component delivery device is not accessible by the operator in the operator zone. The collaborative robot supports the gauge tool and has a range of motion capable of measuring the first component on the first fixture and a second component on the second fixture. A control module is in communication with the gauge and the collaborative robot and operates the collaborative robot to measure the first component on the first fixture and the second component on the second fixture.

An online multiphase measuring method of concentration and diameter distribution of dispersed phase particles in a multiphase reactor is provided in the present invention. The method is based on an online multiphase measuring instrument. The method described herein includes the following steps: (1) the online multiphase measuring instrument is placed in a multiphase system, and an image of the particles in the multiphase system is obtained; (2) valid particles are determined as: the particle that its Grad(Φ) is greater than or equal to Grad(Φ.sub.l/2) is labeled as a valid one; (3) the particle diameter is calculated by d.sub.i=10×n.sub.i/N.sub.10; according to the equation

[00001]$\alpha =\frac{V_c}{V}=\frac{\underset{i}{\overset{n}{.Math.}}.Math.\frac{1}{6}.Math.\pi .Math..Math.d_i^3}{S\times l},$

the concentration of the valid particles is calculated. The concentration and diameter of bubbles, droplets or solid particles can be obtained in real time and online measurement. The accuracy of this method is high.

An online multiphase measuring method of concentration and diameter distribution of dispersed phase particles in a multiphase reactor is provided in the present invention. The method is based on an online multiphase measuring instrument. The method described herein includes the following steps: (1) the online multiphase measuring instrument is placed in a multiphase system, and an image of the particles in the multiphase system is obtained; (2) valid particles are determined as: the particle that its Grad(Φ) is greater than or equal to Grad(Φ.sub.l/2) is labeled as a valid one; (3) the particle diameter is calculated by d.sub.i=10×n.sub.i/N.sub.10; according to the equation

[00001]$\alpha =\frac{V_c}{V}=\frac{\underset{i}{\overset{n}{.Math.}}.Math.\frac{1}{6}.Math.\pi .Math..Math.d_i^3}{S\times l},$

the concentration of the valid particles is calculated. The concentration and diameter of bubbles, droplets or solid particles can be obtained in real time and online measurement. The accuracy of this method is high.

Embodiments are disclosed for head dimension estimation for spatial audio applications. In an embodiment, a method comprises: obtaining, using one or more processors of an audio headset worn on a user's head, acceleration samples and rotation rate samples over a specified time window while the user rotates their head, the acceleration samples and rotation rate samples measured using motion sensors in the headset; determining a function that relates the acceleration samples to the rotation rate samples; comparing the function to a plurality of reference functions, where each reference function corresponds to a different head dimension in a nominal range of head dimensions; and estimating a dimension of the user's head based on the comparing.

The invention relates to a method and device for predicting a volume median diameter (VMD) in an overlapped spray area of twin nozzles. Placing a single nozzle at different heights to determine a spray area; measuring all VMDs in the spray area to obtain first true measured values; dividing the first true measured values to construct a first calibration set and a first prediction set; establishing a polynomial fitting formula by a REGRESS function; placing twin nozzles at different heights and different nozzle spacing, and measuring VMDs in the overlapped spray area to obtain second true measured values; determining simulated values of the VMDs of first and second nozzles; dividing the simulated values of the VMDs and the second true measured values to construct a second calibration set and a second prediction set; quantitatively calibrating by using a radial basis function neural network (RBFNN) to obtain a prediction model; determining a VMD in the overlapped spray area of twin nozzles.

The invention relates to a method and device for predicting a volume median diameter (VMD) in an overlapped spray area of twin nozzles. Placing a single nozzle at different heights to determine a spray area; measuring all VMDs in the spray area to obtain first true measured values; dividing the first true measured values to construct a first calibration set and a first prediction set; establishing a polynomial fitting formula by a REGRESS function; placing twin nozzles at different heights and different nozzle spacing, and measuring VMDs in the overlapped spray area to obtain second true measured values; determining simulated values of the VMDs of first and second nozzles; dividing the simulated values of the VMDs and the second true measured values to construct a second calibration set and a second prediction set; quantitatively calibrating by using a radial basis function neural network (RBFNN) to obtain a prediction model; determining a VMD in the overlapped spray area of twin nozzles.

Method for measuring a workpiece, comprising the method steps of: providing a workpiece, wherein the workpiece has a surface with a surface structure; predefining a geometric measured variable of the workpiece, wherein the geometric measured variable is a diameter of the workpiece and wherein the geometric measured variable and a nominal-actual deviation of the geometric measured variable are defined in a reference plane; predefining a measuring path; tactile sensing of measured values on the workpiece by bringing a measuring probe into contact with the surface of the workpiece and the measuring probe scans the workpiece in contact with the surface along the predetermined measuring path; computational determination of the geometric measured variable and the nominal-actual deviation of the geometric measured variable from the measured values within the reference plane; wherein the predefined measuring path lies at least partially outside the reference plane.

Method for measuring a workpiece, comprising the method steps of: providing a workpiece, wherein the workpiece has a surface with a surface structure; predefining a geometric measured variable of the workpiece, wherein the geometric measured variable is a diameter of the workpiece and wherein the geometric measured variable and a nominal-actual deviation of the geometric measured variable are defined in a reference plane; predefining a measuring path; tactile sensing of measured values on the workpiece by bringing a measuring probe into contact with the surface of the workpiece and the measuring probe scans the workpiece in contact with the surface along the predetermined measuring path; computational determination of the geometric measured variable and the nominal-actual deviation of the geometric measured variable from the measured values within the reference plane; wherein the predefined measuring path lies at least partially outside the reference plane.

The present disclosure relates to a ferrule assembly including a ferrule defining a row of fiber openings. Optical fibers are secured within the fiber openings. The optical fibers are offset within the fiber openings toward one side of the ferrule.