摘要:
A wireless tag adapted for mounting inside a hollow electrically conductive pipe, includes: a contact placed in contact with the electrically conductive pipe so as to be electrically connected to the electrically conductive pipe; a lead wire placed inside the electrically conductive pipe along a longitudinal direction of the electrically conductive pipe and spaced a prescribed distance away from an inside wall of the electrically conductive pipe, thereby forming a coaxial line together with the electrically conductive pipe; and a wireless tag circuit, electrically connected at one end to the contact and at the other end to the lead wire, for generating a response signal in response to an interrogation signal transmitted from a reader/writer.
摘要:
The improved charcoal starter design has several improvements, one being that it utilizes either; readily combustible materials like wadded up paper or a removable or replaceable common electric heating element to heat charcoal to incandescent and safely deposit hot embers into the grill. The common electric heating element is held in place through a clip fixedly attached to the inside of the charcoal starter housing walls and opposite of the opening for the electric heating element. Yet another improvement to this unique charcoal starter designed is the perforated grate having at least one hinge on one side and at least one notch on the opposite side, a release mechanism consisting of a thermally insulated release handle and a release bar with at least one protrusion such that when the release mechanism is activated by pulling the release handle, the protrusion of the release bar aligns with the notch of the perforated hinged grate and the perforated hinged grate will then rotate about the hinge in a downward direction creating an opening and thus allowing the incandescent embers to be deposited safely into the grill where needed and without danger of hot embers and ash being splashed about and possibly injuring the user.
摘要:
A method and system for accurate timing in a low current system useful in fuzing applications generates a first count of oscillations of an oscillator of unknown frequency during a first period of unknown duration. A second count of oscillations of the oscillator is generated during a second period of a known duration. The duration of the first period is calculated based on the first count and the second count. A solid-state, thin-film battery is able to be used by virtue of low-current characteristics of the system, enabling extended shelf life for fuzing systems.
摘要:
Wireless detonators, and corresponding wireless detonator systems present opportunities for blasting arrangements that avoid the need for physical wire connections between the blasting components. The present application discloses a wireless detonator assembly, a corresponding blasting apparatus, and a method of use thereof. The wireless detonator assembly comprises a charge storage device that is capable of storing charge for discharge into a firing circuit upon receipt of an appropriate wireless command signal to FIRE, from an associated blasting machine. In preferred embodiments, the charge storage device remains or becomes charged, at least for a specific time period, if the wireless detonator assembly receives a suitable “keep alive” command signal from an associated blasting machine—otherwise the charge storage device discharges with little or no effect upon the firing circuit, such that the wireless detonator assembly retain or adopts a safe mode.
摘要:
A system, for example an electronic blasting system, in which a command is issued by a master device to all slave devices connected to the system, causing all slave devices that have not been identified to the master device to respond with identifying information and optionally other information pertaining to the slave device.
摘要:
A device for the combustion of solid fuels so as to provide complete combustion from the start and thereby reduce environmental influence and the generation of carcinogens, includes two chambers interconnected by a ceramic filter, which chambers have one or more heat sources, one chamber being adapted for drying and degasification of the fuel and the other chamber being adapted for combustion of the gas generated on degasification. The heat sources are mainly connected with the solid-fuel device to act at an initial stage until combustion takes place in a normal way so that complete combustion may be achieved from the start.
摘要:
An electronic delay igniter including a firing capacitor (102) for storing energy required for firing by applying a voltage from an external power supply, an electronic timer unit (206) provided with a solid state oscillator driven by the energy stored in the firing capacitor (102) to output an output signal after a predetermined delay time, a switching unit (104) for receiving the output signal to transmit the firing energy to an ignition unit (107), and the ignition unit (107) having a ignition charge which ignites on receiving the firing energy, a voltage from the external power supply has a voltage application region where the electronic timer (206) is operated to operate the switching unit (104), but the ignition charge does not ignite even when the energy from the firing capacitor (102) is received.
摘要:
An electric charcoal igniting device consisting of an upright open-ended sleeve of fire-resistant sheet metal in combination with an electric heating element. The heat loop of the electric element is disposed in the interior of the sleeve and the insulated handle of the element is secured to the exterior wall of the sleeve. In use the device is placed directly onto the pan, or coal-holding grate, of a charcoal grill, the sleeve is filled with the desired amount of charcoal briquets or the like, and the electric element is plugged in to ignite the briquets. When the desired degree of ignition is obtained, the device is lifted by the handle leaving the ignited coals in place.
摘要:
An electro-optic detector utilizes a trigger circuit to sense the presense of a fluid medium and produce a control signal at a predetermined time after the fluid medium is detected.
摘要:
A plurality of resistors are successively connected between the junctions of a plurality of series-connected photoflash lamps and semiconductor switch devices of a sequential flashing circuit. The resistors function to provide leakage current paths for the semiconductor switch devices to insure the flashing of the lamps in a desired predetermined order even though one or more of the lamp circuits may be open-circuited.