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 awareness system including a shock detector for measuring an electrical condition in a body of water and a remote station in communication with the shock detector with the shock awareness system displaying a measured electrical condition in the body of water in relation to a known hazardous electrical condition in the body of water to enable an operator to determine a level of danger in a body of water.

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 measuring system for over the air measurements on a device under test comprises an antenna module with at least one measuring antenna, a positioner, adapted to change a relative position of the device under test and the antenna module, resulting in a relative path of movement of the antenna module with regard to the device under test. Each measuring antenna comprises an integrated power detector diode. Each measuring antenna is adapted to determine at least two power values during the movement along the path of movement.

A shock awareness system including a shock detector for measuring an electrical condtion in a body of water and a remote station in communication with the shock detector with the shock awareness system displaying a measured electrical condtion in the body of water in relation to a known hazardous electrical condtion in the body of water to enable an operator to determine a level of danger in a body of water.

A method of conducting a self-test on a non-contact voltage detector with self-test function is disclosed. The method includes receiving at a circuit a signal to power-on the non-contact voltage detector; testing the integrity of a probe by injecting a signal into the probe and checking for receipt of the signal at an input of a circuit; testing the integrity and functioning of the operating LED; testing the integrity and functioning of a voltage indicator LED; and lighting an operating LED only when the probe passes its integrity test and the voltage indicator LED passes its integrity test, otherwise powering down the non-contact voltage detector.

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.

A method of determining electromagnetic exposure values for radiative compliance tests a transmitting device with multiple transmitters or antenna. The device transmits a first set of excitation signals that are chosen in advance. These signals are measured for their electromagnetic exposure values. A second set of excitation signals are then transmitted that are adaptively chosen based on result of a previous measurements of the first excitation signals. The second set of signals are also measured. From the measurements of the predetermined and adaptive signals, the electromagnetic exposure values of all possible transmitted signals are inferred.

A specific absorption rate detection assembly, an SAR detection method, and an electronic device are provided. The SAR detection assembly includes a sensing branch, a detection branch, an SAR sensor, and a compensation branch. The sensing branch is configured to sense a capacitive signal. The detection branch is configured to generate a first noise signal by sensing ambient noise. The capacitive signal and the first noise signal are transmitted to the SAR sensor by the detection branch. A first end of the compensation branch is connected to a reference power-supply terminal. The compensation branch is configured to generate a second noise signal by sensing ambient noise and transmit the second noise signal to the SAR sensor. The second noise signal is used to simulate the first noise signal to compensate, through the second noise signal, the capacitive signal and the first noise signal transmitted to the SAR sensor.

A device for measuring a radioelectric dose on a surface, in particular for measuring the radiological dose for a patient during a radiology operation comprising a matrix with sensors equipped with transparent radio antennas, capable of creating an electric signal corresponding to the electromagnetic radiation received, means for measuring the electric flows emitted by each sensor and means for processing the flow measurements for calculating the accumulation of doses received by predetermined zones of the matrix.