An energy detection warning device includes a housing. An electronic indication component is disposed within the housing. One or more sensors are disposed within the housing and are configured to detect an energized conductor present within a particular proximity of a location of the energy detection warning device, and detect a direction in which the energized conductor is located with respect to the location of the energy detection warning device. The direction is an approximate direction. The device also includes a microcontroller configured to: receive input from the one or more sensors, and actuate the electronic indication component, in response to receipt of the input, to indicate the direction in which the energized conductor is located with respect to the location of the energy detection warning device.

A method for indicating a cycle of operation in a laundry treating appliance having a space that includes at least one electrically conductive element disposed in the space and coupled with a controller, the method includes producing in the at least one electrically conductive element the voltage or the current in reaction to the energized e-field apart from the article. Receiving in the controller a signal from the at least one electrically conductive element indicative of a value of a parameter associated with the voltage or the current of the at least one electrically conductive element. And, generating an indication, by the controller, indicative of a cycle of operation and wherein the indication increases or decreases in intensity proportional to the value of the parameter associated with the voltage or the current.

The present invention is directed at an electromagnetic field detection device configured to continuously monitor properties of ambient electromagnetic fields. The device detects electromagnetic events that may be harmful to humans or cause the disruption of critical infrastructures. Monitored properties may include real-time electromagnetic field strength, peak electromagnetic field strength in a time period, electromagnetic field exceedance, and cumulative electromagnetic field dose. The device detects powerful microwave and millimeter wave electromagnetic emissions, as well as electromagnetic pulse events. The device may be integrated into a variety of products, including, but not limited to, a keychain attachment, lanyard attachment, eyeglasses frame, handheld instrument, identification card, writing instrument, or USB dongle. The device may be powered by internal dc power sources, external dc power sources, or energy harvesting.

A method employs an unmanned aerial vehicle to carry an electromagnetic field measurement system to overcome environmental obstacles in measuring environmental electromagnetic field. The electromagnetic field measurement system senses the electromagnetic field of a spatial position in the environment to generate a sensing signal, then processes the sensing signal to remove the high-frequency electromagnetic interference generated by the operation of the unmanned aerial vehicle itself from the sensing signal, and converts the processed sensing signal into a digital signal. The digital signal is processed to extract at least one wave according to a fundamental frequency and a harmonic order, thereby removing the low-frequency electromagnetic interference from the digital signal. The extracted wave is employed in calculating an environmental electromagnetic field value of the spatial location.

Present teachings relate to a method for proximity detection on an electronic device, the method comprising the steps of: performing a first measurement using a first sensor; calculating, using a processing unit, a first distance value from the first measurement; the first distance value being indicative of the distance between a user and the electronic device; in response to the first distance value, through the processing unit, adapting an energy level on the electronic device, said energy level being related to the Specific Absorption Rate (“SAR”), such that predefined SAR requirements due to exposure of emitted energy from the electronic device are met. The present teaching further relate to an electronic device comprising a measurement system configured to control an energy level on the electronic device, said energy level being related to the Specific Absorption Rate (“SAR”). The present teachings also relate to a computer software product for implementing any method steps disclosed herein.

The present application relates to a device and a method for detecting SAR and a mobile terminal. The device comprises: an SAR sensor, a plurality of first capacitance limitation modules, a plurality of second capacitance limitation modules, and a plurality of signal isolation modules. The SAR sensor comprises a plurality of detection ports each is configured to perform SAR detection on one antenna. The first end and second end of each first capacitance limitation module are connected to the antenna and the detection port respectively. The first end and second end of each second capacitance limitation module is connected to the detection port and a power control circuit respectively. The first end of each signal isolation module is connected to the antenna; the second end of each signal isolation module is connected to the detection port.

A method employs an unmanned aerial vehicle to carry an electromagnetic field measurement system to overcome environmental obstacles in measuring environmental electromagnetic field. The electromagnetic field measurement system senses the electromagnetic field of a spatial position in the environment to generate a sensing signal, then processes the sensing signal to remove the high-frequency electromagnetic interference generated by the operation of the unmanned aerial vehicle itself from the sensing signal, and converts the processed sensing signal into a digital signal. The digital signal is processed to extract at least one wave according to a fundamental frequency and a harmonic order, thereby removing the low-frequency electromagnetic interference from the digital signal. The extracted wave is employed in calculating an environmental electromagnetic field value of the spatial location.

A method of measuring a specific absorption rate (SAR) of a hip joint implant using magnetic resonance imaging (MRI), includes: arranging the hip joint implant in a human lower body-shaped phantom; arranging an electric field sensor around the hip joint implant; providing radio frequency (RF) energy according to an MRI sequence to the human phantom; and calculating the SAR of the hip joint implant from strength of an electric field measured by the electric field sensor.

The present invention provides a radio field intensity measurement device having a display portion with improved visibility, in the case of measuring a weak radiowave from a long distance. In the radio field intensity measurement device, a battery is provided as a power source for power supply and the battery is charged by a received radiowave. When a potential of a signal obtained from the received radiowave is higher than an output potential of the battery, the power is stored in the battery. On the other hand, when the potential of the signal obtained from the received radiowave is lower than the output potential of the battery, power produced by the battery is used as power to drive the radio field intensity measurement device. As an element to display the radio field intensity, a thermochromic element or an electrochromic element is used.

A shock detector for determining the existence of a voltage gradient in a body of water, which may be remote from a structure and providing an alarm when the voltage gradient comprises a hazardous electrical condition that could injure or kill are person coming into contact with the body of water.