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Magnetscape
Magnetscape Vs. AMagScope - ELF-EMF Detector

Magnetscape 與 AMagScope - ELF-EMF Detector 使用情況與統計

"Magnetscape" is a new measurement app that observes invisible magnetic fields using the iPhone's built-in magnetic sensor. There are various magnetic fields around us. For example, the magnetic field fluctuates even when a large motor, compressor, or metal is nearby. The earth's magnetic field exists even in places where there is nothing, and we are affected by this magnetic field. "Magnetscape" can monitor the surrounding magnetic field in real time, it can be used for various purposes in real life. For example, it can be used to investigate static magnetic field, search for low electromagnetic field in alternating magnetic field (electromagnetic field), metal detection and more. "Magnetscape" has three kinds of measurement modes for magnetic field observation, please use it according to your purpose. - Scope Perform a graphical display showing the magnitude and direction of the magnetic field. In Scope, the magnetic flux density of the magnetic field is expressed by the size and color of the graphic circle. The display position of the graphic circle will move according to the polarity of the magnetic source, the polarity will be attracted to the N pole if it is the same direction as the geomagnetic field, the polarity will be reversed away if it is the opposite (S pole). If there is no metal or magnetic field nearby, it will be shifted in the direction of the geomagnetism (N pole). - Time Trace the RAW data from the magnetic sensor and its corrected data. It is a time displacement graph of each axis value (Bx / By / Bz) and composite magnetic flux density (Bcomp) in three-dimensional space. You can scroll up to 180 seconds. - FFT Perform frequency analysis on the changing magnetic field. It displays the result of FFT analysis of the composite magnetic flux density. Horizontal axis: Frequency 1 - 16 Hz (0.5 Hz) Vertical axis: dB (ratio to default standard value 45 μT). Reference value can be set in units of 45 ± 15 μT / 1 μT. Features: - Graphical display of magnetic field observation by magnetic sensor (Scope) - Time displacement graph display of magnetic field observation (Time) - FFT analysis (FFT) - Magnetic field observation 　X axis: Intensity (Bx) of the magnetic field of (the right direction toward the screen) 　Y axis: Intensity (By) of the magnetic field of (upward toward the screen) 　Z axis: magnetic field strength (Bz) in the of (vertical upward direction of the screen) 　Composite magnetic flux density: The magnetic field strength (Bcomp) taking into account all three components of the x-axis, y-axis and z-axis. 　Sampling frequency: 32 Hz 　Unit of observation value: uT - Measurement time: 3 minutes - Alert function: A warning message will be displayed if the composite magnetic flux density exceeds 300 μT. - Alert sound function. (Sound Off/On) - Peak hold function on FFT mode. - Angle display function in Scope mode (Angle) - Clock display function in Scope mode. Notes: - The display value of this application is the RAW output data from the magnetic sensor itself. It does not perform any processing such as filter processing within the application. - Since the magnetic sensor is a sensitive device, the internal reference value of the magnetic sensor may be disturbed if exposed to extremely strong magnets and magnetic fields for a long time. - If the reference value of the magnetic sensor becomes incorrect, the magnetic sensor will be automatically readjusted after you stop the application and leave it for a while. If the magnetic sensor is still unstable, please try the electronic compass calibration and reset procedure. Please visit our iOS App Support page for more information on this app.

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AMagScope - ELF-EMF Detector

Concerned about magnetic fields in your home? Detect and measure them with this easy to read app scientifically designed for your device! This is an easy to use app to detect and measure 50Hz/60Hz alternating magnetic fields that could be present in your home generated by things like microwaves, hairdryers, electric space heaters, video game consoles, AC/DC power adapters and overhead power lines. WHAT MAKES THIS APP DIFFERENT? Static or constant magnetic fields like the Earth's magnetic field are less of a health concern than alternating magnetic fields. This app was designed to detect and measure alternating magnetic fields most commonly found in living spaces. These magnetic fields can be generated by electrical devices running on your home mains AC electricity. These alternating magnetic fields have a frequency of 50 or 60 Hz depending on your country. Studies of the health impacts of alternating magnetic fields as publicized by the International Agency for Research on Cancer (IARC), the World Health Organization (WHO), and by the International Commission on Non-Ionizing Radiation Protection (ICNIRP) has raised the awareness of alternating magnetic fields and generated interest in measurements of them in public and living spaces. The alternating magnetic fields you may encounter in your home can vary tremendously in strength depending on the device and your distance from it. This app measures the 50 or 60 Hz component of any alternating magnetic field with your device if equipped with a magnetometer. The detection and measurement of alternating magnetic fields is achieved by analyzing functuations in the magnetic field measured by the magnetometer in your device. Normally the magnetometer is used for measuring constant magnetic fields, for example in a compass application. In the presence of a sufficiently strong 50/60 Hz alternating magnetic field the magnetometer measurements fluctuates with time. These fluctuations can be detected and measured by a Fast Fourier Transform analysis. This proven scientific method is able to achieve a sensitivity down to about 0.1 micro-Tesla, much smaller than the Earth's magnetic field of about 40-60 micro-Tesla! The calibration of several different devices running this app was cross checked with a separate sensor that was tested using NIST traceable methods and instruments. The accuracy of these devices was found to be as good as 20%, however because the location of the magnetometer in each device is not known precisely the measurement you obtain may have a larger uncertainty like 50%. The main use for this app is to detect and measure 50/60 Hz alternating magnetic fields in public and living spaces. However this app is not a substitute for a professional magnetic field measuring device, and is for private or entertainment purposes only. This app does not work on an iPod or any device that does not have a magnetometer that is normally used for a compass application. The Watch App works on a Series 5+ and SE. Magnetometers in different devices operating under different conditions can produce poor quality input to this app, affecting the measurement accuracy. Please respect your device warranty, including operating it within Apple’s published guidelines. Apple, the Apple logo, iPod, iPhone, and iPad are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc.