Electrocardiography with a Smartphone

Abstract

Myocardial contraction is triggered whenever a wave of electrical impulses passes through the heart. The pattern of electrical excitation spreads coordinately over the structure of the heart. This results in a measurable change in potential across the surface of the body of a subject. The recording of the resultant signal from specific body points is known as an electrocardiogram (ECG). Students can directly record an ECG signal from the headset input of a smartphone with an electric lead and a suitable sound app. This allows interdisciplinary teaching by applying physics concepts to physiology.

Implementing Digital Competencies in University Science Education Seminars Following the DiKoLAN Framework

“…In the module for Data Acquisition (DAQ), the possibilities of data acquisition are discussed, especially using a smartphone (e.g., [19][20][21][37][38][39][40]). Various options such as video analysis or taking measurements using an app are tried out.…”

Smartphone-Based Screening for Cardiovascular Diseases: A Trend?

“…21 As the cardiac impulse spreads through the heart, the electrical current also spreads from the heart to the surrounding tissues, reaching the body's surface. Therefore, by attaching two electrodes on the skin surface on opposite sides of the heart, it is possible to capture the electrical potentials generated by the dipole field, 22 similar to what happens with the Alivecor Kardia Mobile mobile device. Thoms el al., 22 put this device into practice by using a cable and the Int J Cardiovasc Sci.…”

“…Therefore, by attaching two electrodes on the skin surface on opposite sides of the heart, it is possible to capture the electrical potentials generated by the dipole field, 22 similar to what happens with the Alivecor Kardia Mobile mobile device. Thoms el al., 22 put this device into practice by using a cable and the Int J Cardiovasc Sci. 2022; 35(1):127-135 earphone socket, two stainless steel plates functioning as electrodes making contact with the body, plus a 10 kΩ resistor connected in parallel with the input to reduce the polarization voltage.…”

Determinação da aceleração da gravidade em um experimento de lançamento horizontal usando o detector de som de um smartphone

“…A introdução de diversos sensores em um único smartphone auxiliou na personalização da experiência do usuário, conquanto possibilitou, também, a adaptação e desenvolvimento de experimentos trazendo novos conceitos no processo de aprendizagem e favorecendo a adaptação em relação à captação de dados experimentais, sem perda da qualidade ou de informações durante o procedimento (SANS et al, 2015;SUKARIASIH et al, 2019). Muitos trabalhos propõem a utilização do celular como facilitador para a coleta de dados em experimentos de mecânica (JESUS; SASAKI, 2016;MONTEIRO;CABEZA;MARTI, 2015;PEDROSO et al, 2020;KUHN, 2012), eletromagnetismo (ARRIBAS et al, 2020;THOMS et al, 2019), óptica (SZIGETY et al, 2020;GIRWIDZ, 2013) Revista do Professor de Física, v. 6, n. 2, p. 10-24, Brasília, 2022. Phyphox (STAACKS et al, 2018, disponível gratuitamente tanto na plataforma iOS quanto na Android, por possuir a função Cronômetro Acústico (Acoustic Stopwatch) além de permitir que o usuário faça a exportação de dados e tenha controle do experimento através de um navegador da web.…”