Abstract: A lighting apparatus includes a base plate, a driver module, a light source, a mechanical switch, a main housing, and a manual switch. The driver module is disposed on a top surface of the base plate. The light source is also disposed on the top surface of the base plate. The mechanical switch is disposed on the base plate. The mechanical switch has multiple states to be selected. The driver reads a selected state to control the light source. The main housing encloses the base plate. The manual switch is disposed on the main housing. An operating part of the manual switch is exposed outside the main housing to be operated by a user. When a user moves the operating part of the manual switch, the connecting part of the manual switch carries the mechanical switch to change the selected state.

Abstract: Provided are a fibroblast activation protein inhibitor (FAPI) dimer compound, an FAPI dimer-based positron emission tomography (PET) imaging agent for tumor diagnosis, and a preparation method and use thereof. An amphiphilic polyethylene glycol (PEG) chain and a dimerized structure of FAPI in the FAPI dimer compound with a structure shown in formula I can improve the in vivo kinetic properties of the compound and prolong a residence time of the compound in a tumor, thereby improving the uptake and imaging effects in the tumor. The accurate tumor diagnosis can be achieved by labeling the FAPI dimer compound with a diagnostic nuclide (68Ga), which has promising application prospects in PET imaging for diagnosis and in the preparation of a therapeutic nuclide (such as 177Lu or 90Y)-labeled drug for treating a FAP-?-expressing tumor.

Abstract: A sensing element having improved temperature and pressure characteristics including at least one acoustic sensing device formed mainly from a silicon substrate and having a microelectromechanical system without the use of quartz or polymer, wherein the at least one acoustic sensing device detects a torque associated with a metal object subject to said torque, and a high temperature bonding surface for directly connecting the sensing element to the metal object via a high temperature connecting processes comprising at least one of soldering, metalizing and/or brazing, without the need for a polymer adhesive. Related sensors using such sensing elements and methods are also disclosed herein.

Abstract: A method of forming a capacitive micromachined ultrasonic transducer (CMUT) device includes bonding a CMUT substrate to a silicon on insulator (SOI) substrate. The CMUT substrate has a first thickness and the SOI substrate includes a handle, a buried oxide layer, and a device layer. At least one of the CMUT substrate or the SOI substrate includes a patterned dielectric layer. The device layer is bonded to the patterned dielectric layer to form a plurality of sealed cavities and the device layer forms a diaphragm of the plurality of cavities. The method further includes reducing the first thickness of the CMUT substrate to a second thickness and forming a plurality of through-silicon vias from a second surface of the CMUT substrate opposite the first surface.

Abstract: A gyroscope includes at least one anchor and a plurality of gyroscope spring elements coupled to the at least one anchor. The gyroscope also includes a plurality of concentric rings coupled to the plurality of gyroscope spring elements and configured to encircle the plurality of gyroscope spring elements. The gyroscope further includes an excitation/detection/tuning unit electrostatically coupled to the plurality of concentric rings.

Abstract: A method of forming a capacitive micromachined ultrasonic transducer (CMUT) device includes bonding a CMUT substrate to a silicon on insulator (SOI) substrate. The CMUT substrate has a first thickness and the SOI substrate includes a handle, a buried oxide layer, and a device layer. At least one of the CMUT substrate or the SOI substrate includes a patterned dielectric layer. The device layer is bonded to the patterned dielectric layer to form a plurality of sealed cavities and the device layer forms a diaphragm of the plurality of cavities. The method further includes reducing the first thickness of the CMUT substrate to a second thickness and forming a plurality of through-silicon vias from a second surface of the CMUT substrate opposite the first surface.

Abstract: An insertion apparatus includes an insertion end positionable within a cavity and configured to travel through the cavity, a steering end opposite the insertion end, and a body extending from the insertion end to the steering end and sized to fit within the cavity. The body includes a plurality of members flexibly coupled together and individually actuated. Each member of the plurality of members includes at least one actuator strand. At least one member of the plurality of members has a first configuration in which the at least one member of the plurality of members has a first stiffness and a second configuration in which the at least one member of the plurality of members has a second stiffness greater than the first stiffness. At least a portion of the body is flexible to facilitate travel of the body through the cavity when the at least one member of the plurality of members is in the first configuration.

Abstract: The present approach relates to the fabrication and use of a probe array having multiple individual probes. In one embodiment, the probes of the probe array may be functionalized such that certain of the probes are suitable for electrical sensing (e.g., recording) or stimulation, non-electrical sensing or stimulation (e.g., chemical sensing and/or release of biomolecules when activated), or a combination of electrical and non-electrical sensing or stimulation.

Abstract: A gyroscope includes at least one anchor and a plurality of gyroscope spring elements coupled to the at least one anchor. The gyroscope also includes a plurality of concentric rings coupled to the plurality of gyroscope spring elements and configured to encircle the plurality of gyroscope spring elements. The gyroscope further includes an excitation/detection/tuning unit electrostatically coupled to the plurality of concentric rings.

Abstract: A gyroscope includes at least one anchor and a plurality of gyroscope spring elements coupled to the at least one anchor. The gyroscope also includes a plurality of concentric rings coupled to the plurality of gyroscope spring elements and configured to encircle the plurality of gyroscope spring elements. The gyroscope further includes an excitation/detection/tuning unit electrostatically coupled to the plurality of concentric rings.

Abstract: An accelerometer includes a controller, a light source operatively coupled to the controller, and a bifurcated waveguide coupled to the light source and configured to receive light output by the light source. The bifurcated waveguide includes a first waveguide portion and a second waveguide portion. The accelerometer also includes a first resonator operatively coupled to the controller and configured to receive light from the first waveguide portion, and a second resonator operatively coupled to the controller and configured to receive light from the second waveguide portion. The first resonator includes a first proof mass, and the second resonator includes a second proof mass.

Abstract: A downhole dynamometer for a rod pumping unit is provided. The downhole dynamometer includes a shell within which a plurality of sensors, a non-transitory memory, and a dynamometer controller are located. The shell is configured to be coupled to a sucker rod string of the rod pumping unit and disposed in a well opposite a wellhead of the well. The plurality of sensors is configured to measure downhole accelerations of the sucker rod string and to measure a downhole load on the sucker rod string. The dynamometer controller is coupled to the plurality of sensors and the non-transitory memory. The dynamometer controller is configured to periodically collect measurements from the plurality of sensors and store the measurements in the non-transitory memory.

Abstract: A downhole dynamometer for a rod pumping unit is provided. The downhole dynamometer includes a shell within which a plurality of sensors, a non-transitory memory, and a dynamometer controller are located. The shell is configured to be coupled to a sucker rod string of the rod pumping unit and disposed in a well opposite a wellhead of the well. The plurality of sensors is configured to measure downhole accelerations of the sucker rod string and to measure a downhole load on the sucker rod string. The dynamometer controller is coupled to the plurality of sensors and the non-transitory memory. The dynamometer controller is configured to periodically collect measurements from the plurality of sensors and store the measurements in the non-transitory memory.

Abstract: A MEMS pressure sensor device is provided that can provide both a linear output with regard to external pressure, and a differential capacitance output so as to improve the signal amplitude level. These benefits are provided through use of a rotating proof mass that generates capacitive output from electrodes configured at both ends of the rotating proof mass. Sensor output can then be generated using a difference between the capacitances generated from the ends of the rotating proof mass. An additional benefit of such a configuration is that the differential capacitance output changes in a more linear fashion with respect to external pressure changes than does a capacitive output from traditional MEMS pressure sensors.

Abstract: An accelerometer includes a controller, a light source operatively coupled to the controller, and a bifurcated waveguide coupled to the light source and configured to receive light output by the light source. The bifurcated waveguide includes a first waveguide portion and a second waveguide portion. The accelerometer also includes a first resonator operatively coupled to the controller and configured to receive light from the first waveguide portion, and a second resonator operatively coupled to the controller and configured to receive light from the second waveguide portion. The first resonator includes a first proof mass, and the second resonator includes a second proof mass.

Abstract: The present approach relates to the fabrication and use of a probe array having multiple individual probes. In one embodiment, the probes of the probe array may be functionalized such that certain of the probes are suitable for electrical sensing (e.g., recording) or stimulation, non-electrical sensing or stimulation (e.g., chemical sensing and/or release of biomolecules when activated), or a combination of electrical and non-electrical sensing or stimulation.

Abstract: A multi-die sensor system comprises a package and one or more transducer dies mounted in the package. Each transducer die includes one or more transducers, a temperature control element, and temperature sensor. The temperature control element changes the temperature of at least a portion of the transducer during operation of the temperature control element. A temperature sensor senses the temperature of at least the portion of the transducer. An output circuitry die mounted in the package receives transducer signals and a sensed temperature signal from the temperature sensor.

Abstract: A system and method for electrostatic carouseling for inertial sensor gyrocompassing is disclosed. For performing such electrostatic carouseling for inertial sensor gyrocompassing, a three-rotational degree of freedom spring-mass system is provided that includes a proof mass suspended by a plurality of support springs and having three rotational degrees of freedom, a plurality of driving electrodes, and a controller operably connected to the plurality of driving electrodes. The control applies an excitation voltage to the driving electrodes to generate an electrostatic force, with the controller selectively applying the excitation voltage to the plurality of driving electrodes to generate an electrostatic force that varies an orientation of a gyroscope sensitivity axis for carouseling of the three-rotational degree of freedom spring-mass system.

Abstract: A micro-electromechanical systems (MEMS) transducer (100, 700) is adapted to use lateral axis vibration to generate non-planar oscillations in a pair of teeter-totter sense mass structures (120/140, 720/730) in response to rotational movement of the transducer about the rotation axis (170, 770) with sense electrodes connected to add pickups (e.g., 102/107, 802/807) diagonally from the pair of sense mass structures to cancel out signals associated with rotation vibration.

Abstract: A system and method for electrostatic carouseling for inertial sensor gyrocompassing is disclosed. For performing such electrostatic carouseling for inertial sensor gyrocompassing, a three- rotational degree of freedom spring-mass system is provided that includes a proof mass suspended by a plurality of support springs and having three rotational degrees of freedom, a plurality of driving electrodes, and a controller operably connected to the plurality of driving electrodes. The control applies an excitation voltage to the driving electrodes to generate an electrostatic force, with the controller selectively applying the excitation voltage to the plurality of driving electrodes to generate an electrostatic force that varies an orientation of a gyroscope sensitivity axis for carouseling of the three-rotational degree of freedom spring-mass system.