Abstract: A sanding system is presented that includes a tool with a motor which, when actuated, drives movement of a drive shaft. The system also includes a backup pad coupled to the drive shaft. The backup pad is configured to receive an abrasive article. Movement of the drive shaft causes movement of the abrasive article. The system also includes a compliant damping unit configured to provide variable compliance for the tool when the abrasive article contacting a worksurface. The system also includes an electronic controller that receives a system operating condition and sends a signal to the compliant damping unit based on the system operating condition.

Abstract: Haptic articles, methods of making the haptic articles, and applications using sintered articles prepared from molded gel compositions are provided. The haptic articles include a shaped zirconia ceramic plate and a piezoelectric actuator attached to the shaped zirconia ceramic plate to vibrate the shaped zirconia ceramic plate at an ultrasonic frequency.

Abstract: Materials, systems, and assemblies for assessment of haptic perception impairments and motor control abnormalities.

Abstract: A fall protection device comprises an energy harvester to generate electrical power in response to movement of an elongate member and a circuit powered by the generated electrical power; an impact indicator connected to an elongate member, a controller connected to the elongate member and/or the impact indicator to generate a message in response to impact, and a transmitter connected to the controller to transmit the message; and/or a sensor connected to an elongate member and a controller connected to the sensor to generate a message in response to movement of the elongate member. The fall protection device could include a generator to generate electrical power, an energy storage capacitor to store the generated electrical power, a controller powered by the energy storage capacitor to generate a message in response to action, and a wireless transmitter powered by the energy storage capacitor to transmit the message.

Abstract: A fall protection device comprises an energy harvester to generate electrical power in response to movement of an elongate member and a circuit powered by the generated electrical power; an impact indicator connected to an elongate member, a controller connected to the elongate member and/or the impact indicator to generate a message in response to impact, and a transmitter connected to the controller to transmit the message; and/or a sensor connected to an elongate member and a controller connected to the sensor to generate a message in response to movement of the elongate member. The fall protection device could include a generator to generate electrical power, an energy storage capacitor to store the generated electrical power, a controller powered by the energy storage capacitor to generate a message in response to action, and a wireless transmitter powered by the energy storage capacitor to transmit the message.

Abstract: A computing system may send and receive data from a variety of other devices, such as abrading tools and consumable abrasive products. The computing system may use this data for various purposes, such as tracking worker vibration dosage, monitoring inventory, promoting use of personal protective equipment, and other purposes.

Abstract: A computing system may send and receive data from a variety of other devices, such as abrading tools and consumable abrasive products. The computing system may use this data for various purposes, such as tracking worker vibration dosage, monitoring inventory, promoting use of personal protective equipment, and other purposes.

Abstract: Magneto-Mechanical Resonator Sensor with Mass Distribution Channel Some aspects of the present disclosure feature a sensing device (e.g. for temperature, moisture or detection of substances) comprising a magnetic bias layer, a resonator, a spacer, and an environmental change receptor. The spacer is disposed between the magnetic bias layer and the resonator. At least one of the resonator surfaces has a predefined channel. The environmental change receptor is disposed proximate to the predefined channel. In response to a change in environment, the environmental change receptor distributes along a part of the channel.

Abstract: Some aspects of the present disclosure feature a sensing device comprising a magnetic bias layer, a resonator, a spacer, and an environmental change receptor. The environmental change receptor is disposed on a surface of the resonator. The mass of the environmental change receptor is changed in response to a change in environment. The resonant frequency of the sensing device shifts in response to the mass change of the environmental change receptor.

Abstract: Some aspects of the present disclosure feature a sensing device comprising a magnetic bias layer, a resonator, a spacer, and a housing. The spacer includes an environmental change receptor. The thickness of the environmental change receptor rapidly increases in response to a change to an environment variable.

Abstract: Some aspects of the present disclosure feature a system for sensing a change in environment comprising a MMR sensor and a reader. The MMR sensor is configured to be disposed in the environment. The MMR sensor comprises a magnetic bias layer, a resonator, a spacer, and an environmental change receptor. The reader is configured to measure a frequency characteristic of the MMR sensor after the environmental variable changes and the change to the environmental variable is evaluated based on the frequency characteristic.

Abstract: An apparatus comprising: first and second aligned roller pairs each having a nip between the aligned rollers of each aligned roller pair, wherein each of the first and second roller pairs have parallel axes of rotation, wherein each of the first and second aligned roller pairs is configured to electrically excite a portion of the web passed through the nip and to measure an electrical property of the excited web, wherein the first and second aligned roller pairs are configured to electrically excite a portion of the web passed through their respective nips are configured to provide a line of charge parallel to the axes of rotation of the respective roller pairs, and wherein the rollers of the aligned roller pairs are each electrically insulated from each other and from the apparatus; and a processing unit configured to at least analyze the measured electrical properties.

Abstract: Some aspects of the present disclosure feature a sensing device (e.g. for temperature, moisture or detection of substances) comprising a magnetic bias layer, a resonator, a spacer, and an environmental change receptor. The spacer is disposed between the magnetic bias layer and the resonator. At least one of the resonator surfaces has a predefined channel. The environmental change receptor is disposed proximate to the predefined channel. In response to a change in environment, the environmental change receptor distributes along a part of the channel.

Abstract: Some aspects of the present disclosure feature a sensing device comprising a magnetic bias layer, a resonator, a spacer, and a housing. The spacer includes an environmental change receptor. The thickness of the environmental change receptor rapidly increases in response to a change to an environment variable.

Abstract: Some aspects of the present disclosure feature a sensing device comprising a magnetic bias layer, a resonator, a spacer, and an environmental change receptor. The environmental change receptor is disposed on a surface of the resonator. The mass of the environmental change receptor is changed in response to a change in environment. The resonant frequency of the sensing device shifts in response to the mass change of the environmental change receptor.

Abstract: Some aspects of the present disclosure feature a system for sensing a change in environment comprising a MMR sensor and a reader. The MMR sensor is configured to be disposed in the environment. The MMR sensor comprises a magnetic bias layer, a resonator, a spacer, and an environmental change receptor. The reader is configured to measure a frequency characteristic of the MMR sensor after the environmental variable changes and the change to the environmental variable is evaluated based on the frequency characteristic.

Abstract: An apparatus comprising: first and second aligned roller pairs each having a nip between the aligned rollers of each aligned roller pair, wherein each of the first and second roller pairs have parallel axes of rotation, wherein each of the first and second aligned roller pairs is configured to electrically excite a portion of the web passed through the nip and to measure an electrical property of the excited web, wherein the first and second aligned roller pairs are configured to electrically excite a portion of the web passed through their respective nips are configured to provide a line of charge parallel to the axes of rotation of the respective roller pairs, and wherein the rollers of the aligned roller pairs are each electrically insulated from each other and from the apparatus; and a processing unit configured to at least analyze the measured electrical properties.

Abstract: A method for assessing the quality of a membrane electrode assembly (MEA), the method comprising: applying a first voltage across the thickness of a first (MEA) passed through a nip of a first pair of rollers thereby providing a first charge to the first MEA; determining a first electrical figure of merit (FOM) of the first charged MEA at a first period of time; after the first period of time applying a second voltage across the thickness of the first (MEA) passed through a nip of a second pair of rollers thereby providing a second charge to the first (MEA); determining a second electrical (FOM) of the second charged first (MEA) at a second, later period of time; and calculating a total electrical (FOM) using the first and second electrical (FOM); and comparing the total electrical (FOM) to a predetermined quality value to assess the quality of the first (MEA).

Abstract: Apparatus and method for assessing the quality of membrane electrode assemblies.

Abstract: Methods, apparatus and systems for verifying proper delivery of health care bundles to patients are described. The methods, apparatus, and systems may be configured to monitor the delivery of health care bundles to one or more patients, to collect delivery data such as sounds and/or images that can be processed to determine if delivery of the health care bundle is being or has been properly delivered to a patient, to provide feedback during delivery of a health care bundle to a patient, and/or to store an indicator that is indicative of proper delivery of the health care bundle.