A fluidic device includes at least one bulk acoustic wave (BAW) resonator structure with a functionalized active region, and at least one first (inlet) port defined through a cover structure arranged over a fluidic passage containing the active region. At least a portion of the at least one inlet port is registered with the active region, permitting fluid to be introduced in a direction orthogonal to a surface of the active region bearing functionalization material. Such arrangement promotes mixing proximate to a BAW resonator structure surface, thereby reducing analyte stratification, increasing analyte binding rate, and reducing measurement time.

Solution

A copolymer according to the present disclosure is a copolymer of a compound represented by Formula (1) and a compound represented by Formula (2). R.sup.1 and R.sup.4 are each independently a hydrogen atom or a methyl group. R.sup.2 and R.sup.3 are each independently a hydrogen atom or an alkyl group having from 1 to 4 carbon atom(s). R.sup.5 and R.sup.6 are each independently an alkyl group having from 1 to 4 carbon atom(s). x, y, and z are each independently an integer from 1 to 4.

Devices that includes a first portion, the first portion including at least one fluid channel; a fluid actuator; an analysis sensor disposed within the fluid channel; a conductivity sensor disposed within the fluid channel; and an introducer; a second portion, the second portion comprising: at least one well, the well containing at least one material, wherein one of the first or second portion is moveable with respect to the other, wherein the introducer is configured to obtain at least a portion of the material from the at least one well and deliver it to the fluid channel, and wherein the fluid actuator is configured to move at least a portion of the material in the fluid channel.

A fluidic device includes at least one bulk acoustic wave (BAW) resonator structure with a functionalized active region, and at least one first (inlet) port defined through a cover structure arranged over a fluidic passage containing the active region. At least a portion of the at least one inlet port is registered with the active region, permitting fluid to be introduced in a direction orthogonal to a surface of the active region bearing functionalization material. Such arrangement promotes mixing proximate to a BAW resonator structure surface, thereby reducing analyte stratification, increasing analyte binding rate, and reducing measurement time.

A device for in-situ measuring settleability of activated sludge includes a sample chamber, an ultrasonic time domain reflectometer, a magnetic stirrer, an ultrasonic probe, a sample inlet, a sample outlet, and a stagnant zone. The sample chamber is configured to hold an activated sludge sample, and the ultrasonic time domain reflectometer is configured to measure the settling characteristics of the activated sludge. The stagnant zone is disposed in the sample chamber. The sample inlet and the sample outlet communicate with the sample chamber. The stagnant zone includes a top part, a sidewall, and a bottom part. The sample inlet is connected to the top part of the stagnant zone. The sample outlet is connected to the sidewall of the stagnant zone. The magnetic stirrer is disposed at the bottom part of the stagnant zone. The ultrasonic probe is disposed on the top part of the stagnant zone.

A device for in-situ measuring settleability of activated sludge includes a sample chamber, an ultrasonic time domain reflectometer, a magnetic stirrer, an ultrasonic probe, a sample inlet, a sample outlet, and a stagnant zone. The sample chamber is configured to hold an activated sludge sample, and the ultrasonic time domain reflectometer is configured to measure the settling characteristics of the activated sludge. The stagnant zone is disposed in the sample chamber. The sample inlet and the sample outlet communicate with the sample chamber. The stagnant zone includes a top part, a sidewall, and a bottom part. The sample inlet is connected to the top part of the stagnant zone. The sample outlet is connected to the sidewall of the stagnant zone. The magnetic stirrer is disposed at the bottom part of the stagnant zone. The ultrasonic probe is disposed on the top part of the stagnant zone.

An acoustic wave sensor device, comprising an interdigitated transducer; a first reflection structure arranged on one side of the interdigitated transducer, and a second reflection structure arranged on another side of the interdigitated transducer; a first resonance cavity comprising a first upper surface and formed between the interdigitated transducer and the first reflection structure; a second resonance cavity comprising a second upper surface and formed between the interdigitated transducer and the second reflection structure; and wherein the second upper surface comprises a physical and/or chemical modification as compared to the first upper surface.

A sensor system for detecting water or air in a hollow member comprises a first acoustic sensor assembly in a first housing on one side of the hollow member, a second acoustic sensor assembly in a second housing on the opposite side, a controller unit connected to the first and/or second sensor assemblies, and where the first and second sensor assemblies and the controller unit are provided with power supply. Each of the first and second sensor assemblies comprises a set of probes connected to electronics for transmitting and receiving signals, and where the housings comprise fastening means for connecting the housings and the probes to the hollow member. The controller unit comprises a microcontroller, software for controlling and coordinating transmission and reception of signals between said probes, and means for registering and logging data generated by the sensor assemblies. A method detects water or air in a hollow member.

A sensor system for detecting water or air in a hollow member comprises a first acoustic sensor assembly in a first housing on one side of the hollow member, a second acoustic sensor assembly in a second housing on the opposite side, a controller unit connected to the first and/or second sensor assemblies, and where the first and second sensor assemblies and the controller unit are provided with power supply. Each of the first and second sensor assemblies comprises a set of probes connected to electronics for transmitting and receiving signals, and where the housings comprise fastening means for connecting the housings and the probes to the hollow member. The controller unit comprises a microcontroller, software for controlling and coordinating transmission and reception of signals between said probes, and means for registering and logging data generated by the sensor assemblies. A method detects water or air in a hollow member.

A liquid immersion sensor for a mobile device with at least two acoustic transducers is described. The liquid immersion sensor may include a signal generator having a signal generator output configured to generate a signal for transmission via a first acoustic transducer, and a signal receiver having a signal receiver input configured to receive a delayed version of the generated signal via a second acoustic transducer. The signal receiver includes a signal receiver output. The liquid immersion sensor includes a controller having a first controller input for receiving a reference signal and a second controller input coupled to the signal receiver output. The controller determines a time lag value between the reference signal and the delayed signal and generates a control output signal dependent on the phase difference. The control output signal indicates if the mobile device is immersed in liquid.