CompassMR

CompassMR helps you learn and explain magnetic resonance central to MRI and NMR.

Lars G. Hanson · dk.drcmr.compassmr

Not rated yet 1K+ downloads v3.2.0 3 MB Android 4.1+ PEGI 3 · Everyone

Download APK 3 MB All versions

At a glance

Latest version: v3.2.0 (30200)
Updated: May 19, 2024 (2 years ago)
APK size: 3 MB
Requires: Android 4.1+ (API 16)
CPU support: Any (no native code)
Category: Education (app)
Listed since: Oct 22, 2020 (at least)
Permissions: 1
Website: drcmr.dk/larsh
Developer contact: [email protected]

About this APK

CompassMR is an app by Lars G. Hanson in the Education category, listed since at least October 2020. It has no native code, so it runs on any Android processor.

It asks for 1 permission, none of them sensitive.

What's new in v3.2.0

Updated Android libraries and coil graphics

Description

From the listing uploaded by “appupdater”.

The CompassMR app allows you to experiment with Magnetic Resonance (MR) used for MRI and NMR. With this, you can demonstrate MR and make it understandable to anyone in a few minutes. The app can be used to explore Nuclear and Compass MR that are similar except for atomic nuclei not only being magnetic, but also spinning. Static and oscillating fields can be applied to make a compass needle oscillate vigorously, but only if you discover the "resonance condition". The oscillation can subsequently be measured as an induced voltage over a coil. The Fourier transform and the effect of spin can be explored. Magnetic nuclei are similarly set in motion and detected during MRI, for example. Spin changes the dynamics, but the resonance phenomenon is similar (vibration vs. precession). The software is mostly tested with newer Android devices. Feedback is appreciated. LINKS: Online version: http://drcmr.dk/CompassMR YouTube demonstration: https://youtu.be/shB8T8cOeas Explanation and relevance: http://drcmr.dk/MR AUTHOR: The software creator Lars G. Hanson is a senior researcher at the Danish Research Center for Magnetic Resonance and the Technical University of Denmark. http://drcmr.dk/larsh and http://cmr.healthtech.dtu.dk/ ABBREVIATIONS: MRI: Magnetic Resonance Imaging NMR: Nuclear Magnetic Resonance

Security & authenticity

Security rating: Trusted

Signing certificate

Certificate issued to “Copenhagen University Hospital and Technical University of Denmark” The developer's name — though anyone can put any name in a certificate.

Store checks and file details

Developer signature verified May 19, 2024
Signed byCN=Lars G. Hanson, OU=DRCMR and DTU Elektro, O=Copenhagen University Hospital and Technical University of Denmark, L=Copenhagen, ST=Unknown, C=DK
Signing certificate (SHA-1)27:80:C3:3D:97:9C:B8:26:8A:A5:D4:03:8B:90:AC:D3:97:95:05:F5
File MD533d04385e64e2bb3f9ca3e2ed4cd51e1
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

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Permissions (1)

CompassMR requests 1 permission, none of them sensitive.

Full network access android.permission.INTERNET

Required hardware & features

Basic touch input android.hardware.faketouch

CompassMR APK: questions and answers

Can I install this APK over the version I already have?

Only if it is signed with the same certificate as the copy on your phone and isn't an older version. If Android says “App not installed”, the certificates differ; uninstalling your copy first works but deletes its data unless it is backed up.

Is the CompassMR APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. After downloading, check that the file's MD5 is 33d04385e64e2bb3f9ca3e2ed4cd51e1.