Abstract: A method for operating a liquid droplet dispensation system is provided. The method includes dispensing a first droplet of a first fluid sample from a reservoir at a first pressure, measuring a first velocity of the first droplet, and measuring a first mass of the first droplet. The method further includes dispensing a second droplet of the first fluid sample from the reservoir at a second pressure, measuring a second velocity of the second droplet, and measuring a second mass of the second droplet. The method further includes dispensing a droplet of a second fluid sample from the reservoir at a third pressure, measuring a third velocity of the droplet of the second fluid sample, and determining a mass of the droplet of the second fluid sample based upon the first, second and third velocities, the first, second and third pressures, and the first and second masses.

Abstract: A method and test apparatus determines a volume of a droplet of liquid. The test apparatus deposits a drop of liquid to be measured on a surface that provides a known contact angle with the liquid under the deposition conditions used, thereby establishing one of: (i) an advancing, (ii) a receding, and (iii) an intermediate contact angle. The test apparatus images the drop. The test apparatus measures a dimension of height or diameter of the drop. In one embodiment, the test apparatus calculates a volume of the drop of liquid from the relationship of the contact angle to one or more parameters selected from the maximum height, the diameter of the contact patch, the radius of curvature, or the cross sectional area of the drop.

Abstract: A method and test apparatus determines a volume of a droplet of liquid. The test apparatus deposits a drop of liquid to be measured on a surface that provides a known contact angle with the liquid under the deposition conditions used, thereby establishing one of: (i) an advancing, (ii) a receding, and (iii) an intermediate contact angle. The test apparatus images the drop. The test apparatus measures a dimension of height or diameter of the drop. In one embodiment, the test apparatus calculates a volume of the drop of liquid from the relationship of the contact angle to one or more parameters selected from the maximum height, the diameter of the contact patch, the radius of curvature, or the cross sectional area of the drop.

Abstract: A method for operating a liquid droplet dispensation system is provided. The method includes dispensing a first droplet of a first fluid sample from a reservoir at a first pressure, measuring a first velocity of the first droplet, and measuring a first mass of the first droplet. The method further includes dispensing a second droplet of the first fluid sample from the reservoir at a second pressure, measuring a second velocity of the second droplet, and measuring a second mass of the second droplet. The method further includes dispensing a droplet of a second fluid sample from the reservoir at a third pressure, measuring a third velocity of the droplet of the second fluid sample, and determining a mass of the droplet of the second fluid sample based upon the first, second and third velocities, the first, second and third pressures, and the first and second masses.

Abstract: A method and apparatus for collecting sample data from a liquid droplet dispensation system is provided.

Abstract: A method and testing apparatus determine receding contact angles of liquids on surfaces by depositing a liquid in a manner whereby the volume of the drop is increased through stepwise addition of smaller drops. Each increment of volume growth causes the perimeter of the drop to advance across the surface. The incremental volume elements impart sufficient energy to the growing drop such that the drop perimeter expands beyond its equilibrium diameter for that volume. The drop perimeter tends to contract between volume additions as the excess energy is dissipated. The method and testing apparatus determine the receding contact angle between the incremental volume additions.

Abstract: An apparatus, and the method of using it, comprising one, or more, electronic sensors attached to a part(s) of a human or animal's body. The patient then performs an activity, or has an activity performed on them, and the results of the measured parameters are recorded by the sensor and processed, or downloaded and processed. The sensor may include a range of instrumentation, e.g. accelerometers, magnetometers, gyroscopes, force sensors, etc. to record positions (in the X, Y and Z planes), movements, angular movements, forces, stresses in bones/joints, etc. The use of the apparatus and method are appropriate to medical treatments, and perfecting sporting or dancing techniques and the results are processed to give the clinician or coach appropriate information to improve the problem being addressed. Methods for measuring lateral angular movement of hinged joints and spinal extension are taught.

Abstract: A method and test apparatus determines a volume of a droplet of liquid. The test apparatus deposits a drop of liquid to be measured on a surface that provides a known contact angle with the liquid under the deposition conditions used, thereby establishing one of: (i) an advancing, (ii) a receding, and (iii) an intermediate contact angle. The test apparatus images the drop. The test apparatus measures a dimension of height or diameter of the drop. In one embodiment, the test apparatus calculates a volume of the drop of liquid from the relationship of the contact angle to one or more parameters selected from the maximum height, the diameter of the contact patch, the radius of curvature, or the cross sectional area of the drop.

Abstract: A method and apparatus for collecting sample data from a liquid droplet dispensation system is provided.

Abstract: The invention discloses apparatus, and the method of using it, comprising one, or more, electronic sensors attached to a part(s) of a human or animal's body. The patient then performs an activity, or has an activity performed on them, and the results of the measured parameters are recorded by the sensor and processed, or downloaded and processed. The sensor may include a range of instrumentation, e.g. accelerometers, magnetometers, gyroscopes, force sensors, etc. to record positions (in the X, Y and Z planes), movements, angular movements, forces, stresses in bones/joints, etc. The use of the apparatus and method are appropriate to medical treatments, and perfecting sporting or dancing techniques and the results are processed to give the clinician or coach appropriate information to improve the problem being addressed. Methods for measuring lateral angular movement of hinged joints and spinal extension are taught.

Abstract: A method and testing apparatus determine receding contact angles of liquids on surfaces by depositing a liquid in a manner whereby the volume of the drop is increased through stepwise addition of smaller drops. Each increment of volume growth causes the perimeter of the drop to advance across the surface. The incremental volume elements impart sufficient energy to the growing drop such that the drop perimeter expands beyond its equilibrium diameter for that volume. The drop perimeter tends to contract between volume additions as the excess energy is dissipated. The method and testing apparatus determine the receding contact angle between the incremental volume additions.