Abstract:
An analyte detection system includes an analyte detection package to be presented to a reading device, and a focus mechanism to adjust a focal point of the analyte detection package relative to the reading device, with the analyte detection package including a surface-enhanced luminescence analyte stage, the reading device including optics to receive scattered radiation emitted luminescence from the analyte stage, and the focus mechanism to adjust the focal point relative to the optics.
Abstract:
In an example implementation, a substance detection method includes sensing for fluid in a chamber of a substance detection device. When fluid is sensed in the chamber, the method includes sensing again for fluid in the chamber. When no fluid is sensed in the chamber, the method includes initiating a substance detection process.
Abstract:
In an example implementation, a method of fabricating a microfluidic channel filter, includes depositing an imprintable material in a microfluidic channel, pressing an imprint stamp with a filter pattern into the imprintable material, curing the imprintable material, and removing the imprint stamp from the imprintable material.
Abstract:
In an example, a device for sensing a property of a fluid may include an ion-sensitive field effect transistor (ISFET) having a gate, a source, and a drain. The device may also include a first metal element in contact with the gate and a switching layer in contact with the first metal layer. A resistance state of the switching layer is to be modified through application of an electrical field of at least a predefined strength through the switching layer and is to be retained in the switching layer following removal of the electrical field. The device may also include a metal plate in contact with the switching layer, in which the metal plate is to directly contact the fluid for which the property is to be sensed.
Abstract:
A printhead with a number of silicon nitride non-volatile memory devices is described. The printhead includes a number of nozzles to deposit an amount of fluid onto a print medium. Each nozzle includes a firing chamber to hold the amount of fluid, an opening to dispense the amount of fluid onto the print medium, and an ejector to eject the amount of fluid through the opening. The printhead also includes a memory array with a number of silicon nitride non-volatile memory devices. In one example, the number of silicon nitride non-volatile memory devices are a number of memristors with a silicon nitride switching layer. Each memristor includes a bottom electrode, a silicon nitride switching layer, disposed on a top surface of the bottom electrode, and a top electrode disposed on a top surface of the switching layer.
Abstract:
A device for regulating memristor switching pulses is described. The device includes a voltage source to supply a voltage to a memristor. The device also includes a voltage detector to detect a memristor voltage. The memristor voltage is based on an initial resistance state of the memristor and the voltage supplied by the voltage source. The device also includes a comparator to compare the memristor voltage with a target voltage value for the memristor. The device also includes a feedback loop to indicate to a control switch when the memristor voltage is at least equal to the target voltage value. The device also includes a control switch to cut off the memristor from the voltage source when the memristor voltage is at least equal to the target voltage value.
Abstract:
A printhead for depositing fluid onto a surface is described. The printhead includes a nozzle, a firing chamber to hold an amount of fluid and an ejector to eject the amount of fluid through the nozzle. The printhead also includes a number of memristor cells. Each memristor cell includes a memristor, a column select transistor and a row select transistor. A memristor is active when a corresponding column select transistor and row select transistor are closed. The printhead also includes a number of column shift registers to selectively close the column select transistors for a column of memristor cells. The printhead also includes a number of row shift registers to selectively close the row select transistors for a row of memristor cells.
Abstract:
In an example, an air filter assembly includes an air filter to remove particulates from air flowing through the air filter, sense electrodes coupled to the air filter, the sense electrodes spaced apart in a direction that is transverse to a direction of a flow of the air, a sense interconnects to couple the sense electrodes to a first power source to drive a sense electrode of the sense electrodes to a sense power, charge electrodes coupled to the air filter, where the charge electrodes are spaced apart from and adjacent to the sense electrodes, and charge interconnects to couple the charge electrodes to a second power source to drive a charge electrode of the charge electrodes to a charge power different from the sense power.
Abstract:
In one example In accordance with the present disclosure, a fluid ejection device is described. The fluid ejection device Includes a number of nozzles to eject fluid. Each nozzle Includes multiple firing chambers to hold fluid. The multiple firing chambers are separated: by a chamber partition. Each nozzle also includes a shared nozzle orifice in a substrate through which to dispense fluid. Each nozzle also Includes multiple ejectors, at least one ejector disposed in each firing chamber, in a common channel of the nozzle, fluid from the multiple firing chambers Is mixed, A height of the common channel is defined by the substrate and the chamber partition and is less than a width of the shared nozzle orifice.
Abstract:
A system to determine a pose of functional elements includes a set of functional elements, with each of the functional elements including a housing and a processor, memory, power supply, sensor, and wireless communication module each within the housing, and a position module to determine a position of a respective one of the functional elements based on a field of known intensity sensed by the respective one of the functional elements in each a first orientation of the system, a second orientation of the system rotated relative to the first orientation of the system, and a third orientation of the system rotated relative to the second orientation of the system.