A method of determining the energy level of an electromagnetic field (EMF) received from an EMF source (EMFS) and for identifying the EMFS is provided, the method using a plurality of EMF sensing apparatuses to combine data gathered by the apparatuses in order to identify the level and the sources of the EMF at locations over time. Historical and anticipated EMF-related data is used to warn a user of EMF levels above a preset value. Past, current and future anticipated EMF levels are adapted to be displayed on a map. Methods thereof, apparatuses thereof and computer-readable mediums storing the methods are within the scope of the present invention.

A Faraday enclosure for substantially attenuating microwave-frequency fields outside the Faraday enclosure. Information to and from the circuitry inside the Faraday enclosure is accessible by input pinholes and output pinholes, respectively. A sensor positioned outside of the Faraday enclosure and aligned with the first input pinhole senses microwave-frequency fields. A receiver inside the Faraday enclosure aligned with the input pinhole and the sensor responds to the sensor.

In accordance with the present disclosure, voltage sensing techniques using a voltage sensing device are employed to identify sources of electromagnetic radiation and provide warnings to a user about high levels of electromagnetic radiation. By way of example, the voltage sensing device may be a wearable device and may provide auditory, visual, and tactile alerts to a user.

A system may include a device that controls power to an electrical component of an electrical power distribution system. The system may also include a voltage detection device that may detect a presence of a voltage within a distance. The system may further include a control system that may receive location information via a receiver communicatively coupled to the control system, and adjust more operations of the device based on at least in part of the location information. The location information may be transmitted by the voltage detection device in response to detecting that the presence of the voltage is within the distance. The location information may correspond to the electrical component.

In accordance with the present disclosure, voltage sensing techniques using a voltage sensing device are employed to identify sources of electromagnetic radiation and provide warnings to a user about high levels of electromagnetic radiation. By way of example, the voltage sensing device may be a wearable device and may provide auditory, visual, and tactile alerts to a user.

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.

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.

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.

A leakage electromagnetic field sensing device that determines a level of interference of a leakage electromagnetic field includes a sensor probe configured to measure the intensity and frequency of the leakage electromagnetic field, the sensor probe sensing three-axis components of the intensity. A data processing module operatively coupled to the sensor probe includes a processor programmed to analyze the three-axis components of the leakage electromagnetic field intensity to determine an absolute magnitude of the leakage electromagnetic field intensity and calculate a safety factor output based on the absolute magnitude of the intensity and on the frequency of the leakage electromagnetic field that indicates a level of interference to operation of an electronic device caused by the leakage electromagnetic field. A display element in operable communication with the processor illuminates in one of a plurality of colors based on a value of the safety factor output.

A voltage detector includes a cylindrical hollow body housing including an open end and a tool end. An internal circuit assembly includes a voltage sensing loop, a flashlight, and a microprocessor. The internal circuit assembly is disposed inside the cylindrical hollow body housing. The voltage sensing loop is configured to detect voltage without contacting a detected voltage, and the microprocessor is configured to control power to the flashlight via a flashlight power button independently from power to the voltage sensing loop via a voltage detector button.