31 results about "Electromagnetic signal receiver" patented technology

The instrument utilizes at least one electromagnetic signal transmitter and at least one electromagnetic signal receiver with the receiver detecting a receiver signal responsive to the transmitter signal and indicative of subterranean details adjacent to the instrument. The instrument is attachable to a tow vehicle for transport and includes a GPS antenna and tags data gathered by the instrument with GPS position information. The instrument is formed- in modular sections which can be removably attached for collapsing into a smaller space and to allow for flexible configuration of the instrument in various different ways. A wheeled carriage is provided to carry the instrument over the ground. Antennas for the transmitter and receiver, as well as circuitry and cooling systems are all provided to supply the instrument with high resolution and a clear signal indicative of the position and characteristics of subterranean details of interest.

A system estimates the utilization of an electromagnetic signal receiver. The system includes a detection module and a processing module. The detection module receives electromagnetic signals from a surrounding environment. The electromagnetic signals are chronologically segregated into a plurality of dwells each with an elapsed time. The processing module controls the scanning of the surrounding environment. The processing module receives data about the signals from the detection module. The processing module computes a plurality of utilizations by dividing each individual elapsed time by a predetermined sample interval. The processing module further determines a total utilization by adding the plurality of utilizations.

The invention discloses a three-dimensional artificial source electromagnetic exploration method for measuring three-dimensional changes of underground resistivity. The method comprises the following steps of: arranging one current sending source or simultaneously arranging more current sending sources in a region to be explored; simultaneously arranging a plurality of measuring lines in the region to be explored, and arranging a plurality of measuring points on each measuring line; simultaneously arranging receiving electrodes or magnetic probes of which the number is the same as that of the measuring points on each measuring point of each arranged measuring line; connecting each measuring receiving electrode or magnetic probe with a corresponding electromagnetic signal receiver by using a guide line; sending a series of exciting current with different frequencies from high to low or from low to high from the current sending source(s) to the underground of the region; simultaneously receiving an electric or magnetic response signal of an underground object on each frequency exciting current by using each receiver; and extracting underground resistivity information from the electric or magnetic response signal. By the method, the efficiency and resolution capability of electromagnetic exploration can be obviously improved, the exploration speed is greatly increased, the cost is reduced, energy resources are saved, and the requirement of rapid economic development on resource exploration is met.

The invention discloses a method for detecting and identifying a blind shot for blasting chambers. The method comprises the following specific steps of: determining the number of the charged chambers and the number of signal transmitting points; arranging underground electromagnetic signal transmitters in the charged chambers, and setting the transmitting frequency, start-to-transmit time, transmitting interval and duration parameters of the underground electromagnetic signal transmitters; enabling one charged chamber and an electromagnetic signal parameter of one underground electromagnetic signal transmitter to be in one-to-one correspondence; and detecting the blind shot for the chambers after blasting, adopting an electromagnetic signal receiver to receive electromagnetic signals at different frequencies, determining the non-blasting chambers according to the received frequencies, and proving that the chambers without receiving of frequency signals are completely detonated. The method disclosed by the invention has the following advantages: 1) according to the method, the technical problem in detecting and identifying the blind shot for the chambers is solved, the method for inspecting the blind shot for the chambers by human experience is changed, and the reliability is high; and 2) the method has the advantages of simplicity in operation, high detection speed, low price, high precision, intrinsic safety in equipment and strong applicability.

A golf ball locator and player ball strike information system includes a golf ball that utilizes a signal transmitter; one hand held electromagnetic signal receiver; and a CPU coupled to the receiver and configured to receive signals from the ball, to determine the location of the golf ball using signals produced by the ball, outputting at least one signal indicating the location of the golf ball in relation to a hand held device, and one signal relaying information during play of the ball last struck, showing but not limited to, spin rate, shot distance, speed, launch angle. All information is kept on an application for golfer use, but is not limited to computer devices, smart devices, hand held devices and the like.

The present invention relates to a device for generating soft tissue contrast images of an area of interest of an examination object (5) comprising soft tissue. The proposed device comprises: an x-ray source unit (2, 3) for emitting one or more pulsed pencil x-ray beams (4), an actuator (8, 9) for actuating said x-ray source unit (2, 3) along and/or around said area of interest to direct said one or more pencil beams (11) onto said area of interest from various directions, an electromagnetic signal receiver (11) for receiving electromagnetic signals from the area of interest resulting from absorption and scatter of x-ray photons within the area of interest, and a signal processor unit (12) for processing said received electromagnetic signals and reconstructing a soft tissue contrast image of the area of interest.

The invention discloses an internet-of-things data collection device for eaten fodder of raised sheep in a breeding house. A radio frequency electromagnetic wave transmitter and an electromagnetic signal receiver are arranged on the upper portion of the vertical surface of the outer side of a sheep bed front fence of a sheep house in the breeding house and are separated by an electromagnetic waveinterception metal plate, a sheep ear-tag-type transponder is arranged on one ear of each sheep, and a correlation-type infrared transmitter and receiver are arranged on the portions, close to the upper edge of a trough, of house interval fences on two edges of the outer side of the bed sheep front fence. When a sheep extends the head into the trough and eats the fodder, the correlation-type infrared transmitter and receiver transmit triggering signals to the radio frequency electromagnetic wave transmitter, the radio frequency electromagnetic wave transmitter transmits radio frequency electromagnetic waves, the sheep ear-tag-type transponder outside the sheep bed front fence is activated and transmits a number, the electromagnetic signal receiver receives the number and uploads the numberto a data collection and management machine, and the eating time and lasting time of each sheep are recorded. Through separation of the electromagnetic wave interception metal plate, the situation isavoided the electromagnetic waves which are reflected by the sheep ear-tag-type transponder are mistakenly activated, so that the accuracy of data collection is guaranteed.

An electromagnetic signal receiver and methods for determining the noise level and signal power in a signal of interest while the receiver is operating. In some embodiments, the signal of interest is a GPS signal. The receiver includes a noise source that provides a noise signal of known power during intervals while the signal of interest is observed. By measuring a signal-to-noise ratio for the signal of interest and the noise power in the signal of interest, the noise level and signal power of the signal of interest can be computed. Various methods of making the measurements and computing the power of the signal of interest are described. Applications of the system and method are described.

An electromagnetic type automobile safety belt loosening system comprises a take-up device, a safety belt, a male fastener, a female fastener and a loosening mechanism, wherein the safety belt can automatically draw back to the take-up device. An actuating lever is arranged on the male fastener, and an electromagnetic signal projector is arranged on the female fastener. The loosening mechanism comprises a loosening base, a loosening plate, a motor mechanism and an electromagnetic signal receiver. The electromagnetic signal receiver is connected with the motor mechanism, and the motor mechanism is in linkage with the loosening plate. The safety belt penetrates through the loosening mechanism after being pulled out of the take-up device. When the male fastener is inserted into the female fastener, the actuating lever starts the electromagnetic signal projector to emit wireless electromagnetic waves and starts the motor mechanism after the wireless electromagnetic waves are received by the electromagnetic signal receiver, so that the motor mechanism drives the loosening plate, and the safety belt is pressed on the loosening base by the loosening plate.

The invention discloses an online detection system for enamelled flat wire. The detection system includes an electromagnetic signal transmitting end, an electromagnetic signal receiving end and a processing device. The electromagnetic signal receiving end is connected to the processing device; the processing device processes the received electromagnetic signal according to the internally set surface quality control parameters, and displays and records the processing results in real time. The invention can provide online and real-time feedback on the surface quality problems of enamelled flat wires, which is convenient to solve and cure them from the source; moreover, all the problems that occur are recorded, which prevents enamelled flat wires with serious quality problems from flowing into the next process, ensuring Surface quality of enamelled flat wire.

The invention relates to a condylar guidance inclination measuring device. The device comprises an emitter, a receiver, a processor, a first measuring clamp and a second measuring clamp, wherein the emitter is used for emitting an electromagnetic signal for measuring the condylar position; the receiver is used for carrying out position calculation to obtain position information; the first measuring clamp is used for clamping the receiver and providing a measuring reference point to realize measurement of static positions of left and right condyles; the second measuring clamp is used for clamping the receiver on a follow-up point of mandibular movement so as to measure the static position of the follow-up point and dynamic pose data of the receiver along with the mandibular movement; and the processor is used for calculating the position differences between the left and right condyles and the follow-up point, and calculating dynamic tracks of the left and right condyles according to the measured dynamic pose data in combination with position difference data so as to calculate the condylar guidance inclination. The condylar guidance inclination calculated by the device has very high practical application value, and the possibility that an electromagnetic face bow is applied to the market is remarkably improved.

The invention discloses a method for predicting an earthquake by monitoring variation of VLF electromagnetic radiation intensity. The method is characterized by comprising the steps that (1), a crossed grid monitoring network is established in a target zone; (2), electromagnetic signal receivers of three components of x, y and z are placed on monitoring points of the crossed grid monitoring network; (3), received VLF signals are transmitted to a data analyzing system wirelessly through a data transmission system by the electromagnetic signal receivers; (4), received VLF information is instantly analyzed and processed by the data analysis system and transmitted to an imaging monitoring center in different manners; (5), the signals received by the imaging monitoring centers are displayed inreal time, and alarms are sent. The method has the advantages that the variation of spatial and underground VLF radiation intensity is sensed and received by the electromagnetic signal receivers, andtherefore early prediction of the earthquake is achieved.

The invention relates to the technical field of engine cylinder head detection, and particularly relates to a vehicle engine cylinder head valve airtightness detection method comprising the steps thatstep S1: the electromagnetic signal values of the electromagnetic signal receivers in the air inlet passages and the air exhaust passages of the standard cylinder head and multiple unqualified cylinder heads of which the leakage rate is known are recorded in turn; step S2: a binary linear regression correlation between the leakage rate and the electromagnetic signal value is established accordingto the electromagnetic signal value of each cylinder head and the corresponding leakage rate value measured in the step S1; and S3: the electromagnetic signal values of the electromagnetic signal receivers in the air inlet passage and the air exhaust passage of the cylinder head to be measured are substituted in the binary linear regression correlation so as to obtain the air leakage rate of thecylinder head valve according to the binary linear regression correlation.