摘要:
Various embodiments of an electric motor and electronic control for an electric motor are disclosed. An exemplary electric motor comprises a single-phase brushless permanent magnet electric motor. In exemplary embodiments, the electronic motor control is configured to commutate an electric motor at a frequency other than line frequency, perform pulse width modulation, and drive the electric motor with a drive waveform that approximates the counter-electromotive force of the motor.
摘要:
A motor drive for an electric motor of a variable fluid circulating system includes a processing module and a power module. The processing module receives a signal profile and generates a control signal based on the signal profile. A power module generates a carrier signal based on the control signal and a direct current (DC) voltage. The power module pulse width modulates the carrier signal to generate a drive signal in the electric motor that matches the signal profile. The power module powers the electric motor based on the drive signal to adjust injection of a fluid into a reservoir.
摘要:
The invention is a communication management module for effectively controlling an optical interface that uses a control panel indicator in an appliance for communication. The module includes a physical, framing, transport, dispatch, and application layers. The module is implemented to verify the integrity of data frames and to correlate data frames and responses with applications in the application layer.
摘要:
A device including a valving mechanism which can be operated by one hand. The device includes a housing which surrounds a resilient block of material. The housing may be squeezed to depress and deform the resilient block. Passageways extend through the resilient block to conduct liquid therethrough. A first passage includes a solid valve positioned therein. Compression of the resilient block breaks the seal around the valve by distorting the passageway to allow flow therethrough. A second passage includes a capillary to allow continuous low volume flow not controlled by an operator.
摘要:
A biological fluid transport device comprises a cutwater at the junction of at least two blood flow paths. The cutwater is substantially straight, substantially vertical, or both. At least one of the fluid paths may be tubular, and in some embodiments all of the fluid paths are tubular. The shear sensitive fluid may be, without limitation, blood, blood-based combinations, cell culture media, cell suspensions, proteins, and microcapsule suspensions. The device may be part of an extracorporeal circuit (e.g., blood during heart-lung bypass procedures or blood processing), but it need not be. Preferred embodiments of the device include, without limitation, kinetic pumps, mass transfer devices, filters, reservoirs, and heat exchangers.
摘要:
A communication protocol specification is divided into subsets of parameters based on patterns established by equipment vendors. A combination of subsets is selected based on parameters and features supported by particular network devices installed in a network. A user interface facilitates convenient creation or modification of a configuration file, which instructs a network device how to format a communication message and what information is to be contained therein.After the configuration file is loaded into a device, it controls software switches in the device such that features and parameters corresponding to the parameters selected with the user interface and controlled by the switches are either enabled or disable based on the parameters selected. Supported parameter combinations for popular equipment may be prestored so that selection with the interface of a particular piece of equipment automatically edits the configuration file according to the features and parameters supported by said equipment.
摘要:
A biological fluid transport device comprises a cutwater at the junction of at least two blood flow paths. The cutwater is substantially straight, substantially vertical, or both. At least one of the fluid paths may be tubular, and in some embodiments all of the fluid paths are tubular. The shear sensitive fluid may be, without limitation, blood, blood-based combinations, cell culture media, cell suspensions, proteins, and microcapsule suspensions. The device may be part of an extracorporeal circuit (e.g., blood during heart-lung bypass procedures or blood processing), but it need not be. Preferred embodiments of the device include, without limitation, kinetic pumps, mass transfer devices, filters, reservoirs, and heat exchangers.
摘要:
Various embodiments of a motor controller are disclosed. In exemplary embodiments, the motor controller can be instructed to select an operational profile based on the duration of power loss. In an exemplary embodiment, the system comprises a battery or capacitor to provide power to a microcontroller in the motor controller while power is disconnected.
摘要:
A toilet bowl locking device (1) having a cover (7), a slot (4) located in the cover (7), an anchor (2) having an opening (24) located on the cover top surface (18), a pivotal bar (8) having flanges (14) secured to the cover bottom surface (19), a pivot point (5) about which the pivotal bar (8) pivots, and a handle (3) having at least one opening (24). The handle (3) is secured to the pivotal bar (8) and extends through the slot (4) to permit a user to pivot the pivotal bar (8) when the handle (3) is pivoted within the slot (4). The flanges (14) are spaced a predetermined distance from the cover bottom surface (19) so as to be located beneath the toilet bowl rim (12) when the toilet bowl locking device (1) is secured within a toilet bowl (10). A lock (11) may be used to lock the handle (3) to the anchor (2) and thereby prevent pivoting of the pivotal bar (8).