Abstract: The present disclosure describes a laser driver circuit for measuring electrophoretic mobility of a sample. In an exemplary embodiment, the circuit includes a voltage regulator circuit to receive an input voltage and to output a stable output voltage, an operational amplifier electrically coupled to an output of the voltage regulator circuit, a transistor electrically coupled to an output of the operational amplifier and to the output of the voltage regulator circuit, a plurality of resistors electrically coupled to the operational amplifier and to the transistor, a plurality of capacitors electrically coupled to the operational amplifier, to the transistor, and to the plurality of resistors, and where the operational amplifier is to output a voltage to adjust a gate voltage of the transistor such that a drain source resistance of the transistor allows a controlled current to flow to a laser for measuring electrophoretic mobility of a sample.

Abstract: The present disclosure describes a circuit to control acousto-optic modulators for measuring electrophoretic mobility. In an embodiment, the circuit includes at least two channel amplifier circuits, a radio frequency generator logically coupled to the channel amplifier circuits, where the radio frequency generator is to output drive signals to the channel amplifier circuits, a synchronized data acquisition system logically coupled to the radio frequency generator, where the synchronized data acquisition system is to digitize an optical signal from a photo diode logically coupled to at least two acousto-optic modulators, and where one of the channel amplifier circuits is to drive one of acousto-optic modulators and the other of the channel amplifier circuits is to drive the other of the acousto-optic modulators, where the acousto-optic modulators and photo diode are to measure electrophoretic mobility of a sample.

Abstract: The present disclosure describes an apparatus, method, system, and computer program product of identifying a cuvette for measuring light scattering of a sample. In an exemplary embodiment, the apparatus includes at least one sensor configured to detect at least one shape feature of a cuvette, and an insulating block configured to maintain a temperature of the at least one sensor within an operating temperature range of the at least one sensor. In an exemplary embodiment, the method, system, and computer program product include receiving a first set of signals from a first sensor directed to a cuvette, receiving a second set of signals from a second sensor directed to the cuvette, and executing a set of logical operations detecting a shape feature of the cuvette.

Abstract: A tag includes: a housing configured for coupling the tag to a physical object to organize activities regarding the physical object; and coupled to the housing: a wireless communication component; circuitry electrically coupled to the wireless communication component, the circuitry having a reset port and a switch port; a power source electrically coupled to the wireless communication component and the circuitry; a first switch between the power source and the reset port; a second switch between the reset port and ground, the second switch controlled by the switch port; and a capacitor between the reset port and the ground.

Abstract: A method includes: receiving, by a first tag and from a second tag, a first message including an identifier of the second tag, the first and second tags configured for coupling to respective first and second physical objects to organize activities; identifying, by the first tag and based on a proximity measure, the second tag for a pairing process to register the second tag as a child tag of the first tag; and providing, by the first tag, a second message with the identifier to a processing device configured to register the second tag as the child tag of the first tag.