Abstract: A device for measuring conductivity of a fluid. The device including a chamber and at least two electrodes. The chamber includes an inlet, an outlet, an upper surface, and a lower surface that runs separate from the upper surface. The fluid enters the chamber through the inlet and flows out of the chamber through the outlet. Moving along a length of the chamber from the inlet to the outlet or from the outlet to the inlet, a distance between the upper surface and the lower surface changes in at least one dimension of the chamber. The two electrodes are configured to measure electrical voltage in the fluid that enters the chamber through the inlet and flows out of the chamber through the outlet.

Abstract: A device for measuring conductivity of a fluid. The device including a chamber and at least two electrodes. The chamber includes an inlet, an outlet, an upper surface, and a lower surface that runs separate from the upper surface. The fluid enters the chamber through the inlet and flows out of the chamber through the outlet. Moving along a length of the chamber from the inlet to the outlet or from the outlet to the inlet, a distance between the upper surface and the lower surface changes in at least one dimension of the chamber. The two electrodes are configured to measure electrical voltage in the fluid that enters the chamber through the inlet and flows out of the chamber through the outlet.

Abstract: A device for measuring conductivity of a fluid. The device including a chamber and at least two electrodes. The chamber includes an inlet, an outlet, an upper surface, and a lower surface that runs separate from the upper surface. The fluid enters the chamber through the inlet and flows out of the chamber through the outlet. Moving along a length of the chamber from the inlet to the outlet or from the outlet to the inlet, a distance between the upper surface and the lower surface changes in at least one dimension of the chamber. The two electrodes are configured to measure electrical voltage in the fluid that enters the chamber through the inlet and flows out of the chamber through the outlet.

Abstract: A sorbent cartridge device includes an ion-exchange material containing zirconium phosphate and no more than about 0.1 mg of leachable phosphate ions per about 1 g of the ion-exchange material. In one example, the cartridge also includes a phosphate-adsorbing material containing zirconium oxide. In this example, the weight ratio between zirconium phosphate and zirconium oxide in the cartridge is from about 10:1 to about 40:1. The zirconium phosphate may be alkaline zirconium phosphate prepared by a process including the following steps: (i) drying acid zirconium phosphate to obtain a dry acid zirconium phosphate; (ii) combining the dry acid zirconium phosphate with an aqueous solution to obtain an aqueous slurry; and (iii) combining the slurry with an alkali hydroxide to obtain the alkaline zirconium phosphate. During step (ii), any free phosphate ions in the dry acid zirconium phosphate leach out into the aqueous phase of the slurry.

Abstract: In some examples, a module of a three-dimensional (3D) printer can include a first linear actuator, a second linear actuator, and a tool to selectively engage a part and selectively disengage from the part, where the tool is connected to the first linear actuator and the second linear actuator.

Abstract: A sorbent cartridge device includes an ion-exchange material containing zirconium phosphate and no more than about 0.1 mg of leachable phosphate ions per about 1 g of the ion-exchange material. In one example, the cartridge also includes a phosphate-adsorbing material containing zirconium oxide. In this example, the weight ratio between zirconium phosphate and zirconium oxide in the cartridge is from about 10:1 to about 40:1. The zirconium phosphate may be alkaline zirconium phosphate prepared by a process including the following steps: (i) drying acid zirconium phosphate to obtain a dry acid zirconium phosphate; (ii) combining the dry acid zirconium phosphate with an aqueous solution to obtain an aqueous slurry; and (iii) combining the slurry with an alkali hydroxide to obtain the alkaline zirconium phosphate. During step (ii), any free phosphate ions in the dry acid zirconium phosphate leach out into the aqueous phase of the slurry.

Abstract: A device for measuring conductivity of a fluid. The device including a chamber and at least two electrodes. The chamber includes an inlet, an outlet, an upper surface, and a lower surface that runs separate from the upper surface. The fluid enters the chamber through the inlet and flows out of the chamber through the outlet. Moving along a length of the chamber from the inlet to the outlet or from the outlet to the inlet, a distance between the upper surface and the lower surface changes in at least one dimension of the chamber. The two electrodes are configured to measure electrical voltage in the fluid that enters the chamber through the inlet and flows out of the chamber through the outlet.

Abstract: An apparatus includes a glove, an illumination assembly partially disposed in a finger portion of the glove, and an actuator removably disposed in a portion of the glove. A housing of the illumination assembly includes a flange with a portion disposed in a region of the glove between the finger portion and a thumb portion and a mounting portion at least partially disposed within an aperture defined by the finger portion and coupled to an illumination member of the illumination assembly. The flange coupling the housing to the glove to retain the mounting portion in a substantially fixed orientation within the aperture and to space the illumination member a non-zero distance from an exterior surface of the glove. The actuator transitionable between a first configuration in which electric power is withheld from the illumination member and a second configuration in which electric power is delivered to the illumination member.

Abstract: A plurality of capacitors is subjected to a test cycle of charging, soaking and discharging. While in the soaking cycle, a plurality of measurements of current is obtained. The data is used to train a predictive function. Then, a test capacitor is charged and soaked for a shorter period than the plurality of capacitors. The current through the test capacitor is measured more than once during its soak period, and the measured current values are applied to the predictive function to predict whether the current through the test capacitor at the end of the soak time period would be higher than a predetermined value, thus indicating failure of a leakage test by test capacitor.

Abstract: An improved method and apparatus for testing and sorting electro-optic devices by both electrical and optical properties at high speed is disclosed. Electro-optic devices, in particular light emitting diodes, are singulated by a singulation device and transferred to a linear track where they are tested for electrical and optical properties. The devices are then sorted into a large number of different bins depending upon the tested properties.

Abstract: An improved method and apparatus for testing and sorting electro-optic devices by both electrical and optical properties at high speed is disclosed. Electro-optic devices, in particular light emitting diodes, are singulated by a singulation device and transferred to a linear track where they are tested for electrical and optical properties. The devices are then sorted into a large number of different bins depending upon the tested properties.

Abstract: An electronic testing machine that tests electronic components using test contacts is disclosed. A contact takes a plurality of electrical readings for a component retained in a test plate as the test plate is moved in microsteps. These electrical readings can be used to determine alignment and/or to correct alignment as necessary using an adjustment mechanism.

Abstract: A method and apparatus for synchronizing plural test devices coupled to a host. A counter of each of the devices is initialized, and each of the counters is incremented, such as by a periodic signal indicating a start of a data stream. An action, typically either a source signal or a measurement signal, is triggered when a respective counter reaches a programmed counter value.

Abstract: A method for determining the alignment of a plurality of contacts in an electronic testing machine is disclosed. The contacts are swept over an electronic component taking a plurality of electrical readings. These electrical readings are charted against a desired orientation to determine alignment. Alignment can be corrected as necessary using an adjustment mechanism.

Abstract: A method for determining the alignment of a plurality of contacts in an electronic testing machine is disclosed. The contacts are swept over an electronic component taking a plurality of electrical readings. These electrical readings are charted against a desired orientation to determine alignment. Alignment can be corrected as necessary using an adjustment mechanism.

Abstract: A method for determining the alignment of a plurality of contacts in an electronic testing machine is disclosed. The contacts are swept over an electronic component taking a plurality of electrical readings. These electrical readings are charted against a desired orientation to determine alignment. Alignment can be corrected as necessary using an adjustment mechanism.

Abstract: A method and apparatus for synchronizing plural test devices coupled to a host. A counter of each of the devices is initialized, and each of the counters is incremented, such as by a periodic signal indicating a start of a data stream. An action, typically either a source signal or a measurement signal, is triggered when a respective counter reaches a programmed counter value.

Abstract: A single pass actuator (70, 200), such as a deformable mirror (70), quickly changes, preferably in less than 1 ms, the focus and hence the spot size of ultraviolet or visible wavelength laser pulses to change the fluence of the laser output (66) at the workpiece surface between at least two different fluence levels to facilitate processing top metallic layers (264) at higher fluences and underlying dielectric layers (266) at lower fluences to protect bottom metallic layers (268). The focus change is accomplished without requiring Z-axis movement of the laser positioning system (62). In addition, the spot size can be changed advantageously during trepanning operations to decrease via taper, reduce lip formation, increase throughput, and/or minimize damage.

Abstract: A single pass actuator (70, 200), such as a deformable mirror (70), quickly changes, preferably in less than 1 ms, the focus and hence the spot size of ultraviolet or visible wavelength laser pulses to change the fluence of the laser output (66) at the workpiece surface between at least two different fluence levels to facilitate processing top metallic layers (264) at higher fluences and underlying dielectric layers (266) at lower fluences to protect bottom metallic layers (268). The focus change is accomplished without requiring Z-axis movement of the laser positioning system (62). In addition, the spot size can be changed advantageously during trepanning operations to decrease via taper, reduce lip formation, increase throughput, and/or minimize damage.