Abstract: A sensor is provided for detecting relative amounts of components within a mixture. The sensor includes a dielectric transducer comprising a first conductive rod and a second conductive rod; an oscillator configured to apply a voltage to the first conductive rod; an amplifier configured receive a voltage from the second conductive rod as input; and a controller configured to periodically sample an output voltage of the amplifier to generate a plurality of sample voltages, compare the sample voltages against distinct voltage values for identifying each of the components to determine the relative amounts of the components.

Abstract: A sensor is provided for detecting relative amounts of components within a mixture.

Abstract: A Holographic Multiphase Flowmeter permits reconstructing the type, size and distribution of Objects within a Multiphase Medium by analysis of the ultrasonic energy reflected from these Objects. If this Multiphase Medium is flowing through a pipe into which a preferred mode of ultrasonic energy is injected at a Reference location, and the amplitude of reflections from the current multiphase Objects at that location and the time it took after the last transmission for that reflected signal amplitude to arrive at the Receive transducer are recorded, it is possible to determine the velocity of the medium by measuring the travel time taken for these same Objects to arrive at a known distance downstream by correlating the same type of reflection data at this second Correlation location. Analysis of this data permits displaying type and size of the Objects in a graphic image showing their distribution within the liquid in real time.

Abstract: A Holographic Multiphase Flowmeter permits reconstructing the type, size and distribution of Objects within a Multiphase Medium by analysis of the ultrasonic energy reflected from these Objects. If this Multiphase Medium is flowing through a pipe into which a preferred mode of ultrasonic energy is injected at a Reference location, and the amplitude of reflections from the current multiphase Objects at that location and the time it took after the last transmission for that reflected signal amplitude to arrive at the Receive transducer are recorded, it is possible to determine the velocity of the medium by measuring the travel time taken for these same Objects to arrive at a known distance downstream by correlating the same type of reflection data at this second Correlation location. Analysis of this data permits displaying type and size of the Objects in a graphic image showing their distribution within the liquid in real time.

Abstract: An ultrasonic flowmeter includes a conduit for receiving a flow of a fluid and a flexible printed circuit board (FPC) including: a pair of ultrasonic transducers, wherein each transducer comprises a piezoelectric element divided into a plurality of segment electrodes and the FPC is bonded around the conduit; and a control circuit configured to sequentially activate the segment electrodes using a pulse train to cause at least one of the piezoelectric elements to emit a sonic signal. A delay time between activation of each successive segment electrode controls a phase velocity and an angle of emission of the corresponding sonic signal.

Abstract: An ultrasonic transducer includes: a plurality of segment electrodes located on a surface of a single piezoelectric element; a pulse generator configured to generate a pulse signal having pulses of a certain frequency; and a control circuit that sequentially activates the segment electrodes using the pulse signal to cause the element to emit a sonic signal, where a controlled delay time between activation of each segment electrode varies the emission angle of the sonic signal so as to compensate for angle changes caused by either changes in Beam refraction or due to Beam Blowing caused by high flow velocity.

Abstract: An ultrasonic flowmeter includes a conduit for receiving a flow of a fluid and a flexible printed circuit board (FPC) including: a pair of ultrasonic transducers, wherein each transducer comprises a piezoelectric element divided into a plurality of segment electrodes and the FPC is bonded around the conduit; and a control circuit configured to sequentially activate the segment electrodes using a pulse train to cause at least one of the piezoelectric elements to emit a sonic signal. A delay time between activation of each successive segment electrode controls a phase velocity and an angle of emission of the corresponding sonic signal.

Abstract: An ultrasonic transducer for a pipe includes an ultrasonic source configured to emit a sonic beam and a conically shaped reflector configured to reflect the sonic beam towards an inner wall of the pipe. An apex of the reflector opposite its base is mounted to the ultrasonic source. The conically shaped reflector may have concave outer surfaces that enable the reflector to reflect the sonic beam into waves of a collimated shape.

Abstract: An ultrasonic transducer for a pipe includes an ultrasonic source configured to emit a sonic beam and a conically shaped reflector configured to reflect the sonic beam towards an inner wall of the pipe. An apex of the reflector opposite its base is mounted to the ultrasonic source. The conically shaped reflector may have concave outer surfaces that enable the reflector to reflect the sonic beam into waves of a collimated shape.

Abstract: An ultrasonic transducer includes: a piezoelectric element divided into a plurality of segments; a pulse generator configured to generate a pulse signal that comprises pulses of a certain frequency; and a control circuit that sequentially activates the segments to cause the element to emit a sonic signal, where a controlled delay time between activation of each segment varies the emission angle of the sonic signal so as to compensate for angle changes caused by either changes in Beam refraction or due to Beam Blowing caused by high flow velocity.

Abstract: An ultrasonic transducer includes a piezoelectric element that is attached to a sonic lens, a support ring that holds the piezoelectric element, a flange, and a spoke. One end of the spoke is connected to the support ring and an opposing end of the spoke is connected to an inner surface of the flange. The sonic lens may be plastic film that coats the piezoelectric element.

Abstract: An apparatus for lifting and lowering a toilet seat assembly includes a motion sensor, a motor assembly, a first gear located on a shaft of the motor, a second gear interfaced with the first gear, a drive shaft interfaced with the second gear. A lever is coupled to the drive shaft for lifting the toilet seat. The apparatus may include a bearing housing that includes a movable lead screw with a detent. A first end of a first spiral spring is connected to a slot of the drive shaft within the bearing housing. The first spiral spring is wrapped around the drive shaft. A second end of the first spiral spring is located in a path of the detent. The hubs of the second gear and the drive shaft may be connected together using a crank shaft. A microcontroller may control the motor assembly and be programmable using the sensor.

Abstract: An apparatus mounted to a toilet is configured to lift and lower a seat assembly of the toilet. The apparatus includes a motion sensor that outputs a detection signal in response to motion, a motor driving unit, a motor, a first gear, a second gear interfaced with the first gear, an output shaft connected to a clutch coupled to a lever exiting the apparatus, a wire rope wrapped around hubs of the second gear and the output shaft, and a micro-controller. The motor driving unit is configured to drive a shaft of the motor in a clockwise or a counterclockwise direction based on receipt of a direction signal. The microcontroller is configured to send the direction signal to the motor driving unit based on the detection signal.

Abstract: An apparatus for lifting and lowering a toilet seat assembly includes a motion sensor, a motor assembly, a first gear located on a shaft of the motor, a second gear interfaced with the first gear, a drive shaft interfaced with the second gear. A lever is coupled to the drive shaft for lifting the toilet seat. The apparatus may include a bearing housing that includes a movable lead screw with a detent. A first end of a first spiral spring is connected to a slot of the drive shaft within the bearing housing. The first spiral spring is wrapped around the drive shaft. A second end of the first spiral spring is located in a path of the detent. The hubs of the second gear and the drive shaft may be connected together using a crank shaft. A microcontroller may control the motor assembly and be programmable using the sensor.

Abstract: An apparatus mounted to a toilet is configured to lift and lower a seat assembly of the toilet. The apparatus includes a motion sensor that outputs a detection signal in response to motion, a motor driving unit, a motor, a first gear, a second gear interfaced with the first gear, an output shaft connected to a clutch coupled to a lever exiting the apparatus, a wire rope wrapped around hubs of the second gear and the output shaft, and a micro-controller. The motor driving unit is configured to drive a shaft of the motor in a clockwise or a counterclockwise direction based on receipt of a direction signal. The microcontroller is configured to send the direction signal to the motor driving unit based on the detection signal.

Abstract: An apparatus configured to lift and lower a seat assembly of a toilet includes a case that is configured to be mounted to the toilet using mounting bolts of the seat assembly. The case includes a passive infrared sensor (PIR) that outputs a detection signal in response to motion, a motor having a lever coupled to the shaft of the motor via a coupler, a direction control unit that applies a motor supply voltage to drive the shaft of the motor in one of a clockwise or counterclockwise direction in response to the detection signal, and a battery to provide power to the apparatus.

Abstract: An apparatus configured to lift and lower a seat assembly of a toilet includes a case that is configured to be mounted to the toilet using mounting bolts of the seat assembly. The case includes a passive infrared sensor (PIR) that outputs a detection signal in response to motion, a motor having a lever coupled to the shaft of the motor via a coupler, a direction control unit that applies a motor supply voltage to drive the shaft of the motor in one of a clockwise or counterclockwise direction in response to the detection signal, and a battery to provide power to the apparatus.

Abstract: A method for calibrating a flowmeter, comprising choosing a pipe configuration from a list of pipe configurations, defining a number of diameters downstream from the pipe configuration where a transducer is to be installed, determining an initial curve number for the chosen pipe configuration, wherein the initial curve number corresponds to a predetermined flow profile correction curve, determining a swirl factor for the chosen pipe configuration, and computing a calibration factor for a given Reynolds number.

Abstract: A method for calibrating a flowmeter, comprising choosing a pipe configuration from a list of pipe configurations, defining a number of diameters downstream from the pipe configuration where a transducer is to be installed, determining an initial curve number for the chosen pipe configuration, wherein the initial curve number corresponds to a predetermined flow profile correction curve, determining a swirl factor for the chosen pipe configuration, and computing a calibration factor for a given Reynolds number.

Abstract: A device for measuring flow in a pipe includes a first metal plate mounted to the pipe, the first metal plate including a first contact portion contacting a wall of the pipe and a first away portion spaced apart from the wall of the pipe, a second metal plate mounted to the pipe, the second metal plate including a second contact portion contacting the wall of the pipe and a second away portion spaced apart from the wall of the pipe, a first transducer mounted to the first away portion, and a second transducer mounted to the second away portion.