The invention discloses an intrinsically safe field device for process automation technology, comprising: at least one sensor element for detecting at least one measurand; a secondary coil for transmitting and receiving datain particular, values derived from the measurandfrom a primary coil, and for receiving power from the primary coil, wherein the secondary coil comprises first and second connections; a second coupling body that is designed to be complementary to a first coupling body, wherein the second coupling body comprises the secondary coil; and a circuit assembly that is arranged downstream of the secondary coil. Within the circuit assembly, Zener diodes are connected upstream of rectifier diodes.

The invention discloses an intrinsically safe field device for process automation technology, comprising: at least one sensor element for detecting at least one measurand; a secondary coil for transmitting and receiving datain particular, values derived from the measurandfrom a primary coil, and for receiving power from the primary coil, wherein the secondary coil comprises first and second connections; a second coupling body that is designed to be complementary to a first coupling body, wherein the second coupling body comprises the secondary coil; and a circuit assembly that is arranged downstream of the secondary coil. Within the circuit assembly, Zener diodes are connected upstream of rectifier diodes.

An encoder for detecting a rotation angle of an object of detection includes: a main circuit including a rotational speed obtaining portion configured to obtain a rotational speed of the object of detection; a backup battery for supplying power to the main circuit while the main circuit is disconnected from a main power-supply circuit; a current obtaining portion configured to obtain a consumption current of the backup battery as a backup current while the electric power is being supplied from the backup battery to the main circuit; and a current abnormality determining portion configured to determine that the backup current is abnormal if the backup current is larger than a given current value when the rotational speed of the object of detection obtained by the rotational speed obtaining portion is a given rotational speed.

An encoder for detecting a rotation angle of an object of detection includes: a main circuit including a rotational speed obtaining portion configured to obtain a rotational speed of the object of detection; a backup battery for supplying power to the main circuit while the main circuit is disconnected from a main power-supply circuit; a current obtaining portion configured to obtain a consumption current of the backup battery as a backup current while the electric power is being supplied from the backup battery to the main circuit; and a current abnormality determining portion configured to determine that the backup current is abnormal if the backup current is larger than a given current value when the rotational speed of the object of detection obtained by the rotational speed obtaining portion is a given rotational speed.

Disclosed is a multi-channel power controller. The multi-channel power controller comprises a processing system configured to generate one or more control signals, and one or more extender modules operatively coupled to the processing system. The one or more 5 extender modules are configured to receive an input electrical power. Each extender module of the one or more extender modules is configured to receive a control signal of the one or more control signals, receive a portion of the input electrical power, and generate a plurality of output electrical powers using the received control signal and the portion of the input electrical power. Also disclosed is a power control system.

Disclosed is a multi-channel power controller. The multi-channel power controller comprises a processing system configured to generate one or more control signals, and one or more extender modules operatively coupled to the processing system. The one or more 5 extender modules are configured to receive an input electrical power. Each extender module of the one or more extender modules is configured to receive a control signal of the one or more control signals, receive a portion of the input electrical power, and generate a plurality of output electrical powers using the received control signal and the portion of the input electrical power. Also disclosed is a power control system.

Embodiments of the present invention include a method and system for controlling the flow rate of materials into and out of the blender. The system includes the control and management of an on-site storage system for each component of a mixture, regulating the delivery rate of a blend mixture into a blender hopper, regulating the exit rate of the blended mixture from the blender hopper, and coordinating the flow of materials into and out of the blender.

Embodiments of the present invention include a method and system for controlling the flow rate of materials into and out of the blender. The system includes the control and management of an on-site storage system for each component of a mixture, regulating the delivery rate of a blend mixture into a blender hopper, regulating the exit rate of the blended mixture from the blender hopper, and coordinating the flow of materials into and out of the blender.

A system for monitoring the cardiopulmonary functioning of a person includes a remote terminal and a sensor module configured to be worn by the person. The sensor module includes at least one physiological sensor configured to sense the following types of physiological information generated by the person: pulse rate, blood flow, and blood pressure; at least one signal processor configured to process signals generated by the at least one physiological sensor; and at least one transmitter responsive to the at least one signal processor that is configured to transmit at least one signal to the at least one remote terminal. The at least one signal processor is configured to focus processing resources on one of the types of physiological information in response to a specified preference by the person.

A system for monitoring the cardiopulmonary functioning of a person includes a remote terminal and a sensor module configured to be worn by the person. The sensor module includes at least one physiological sensor configured to sense the following types of physiological information generated by the person: pulse rate, blood flow, and blood pressure; at least one signal processor configured to process signals generated by the at least one physiological sensor; and at least one transmitter responsive to the at least one signal processor that is configured to transmit at least one signal to the at least one remote terminal. The at least one signal processor is configured to focus processing resources on one of the types of physiological information in response to a specified preference by the person.