Traditional Chinese Practical ECG R-wave detector: Circuit Design, Parts List & Workshop Prototype Guide
In short: Traditional Chinese Practical ECG R-wave detector. This entry documents a circuit & prototype taken from Chinese practical-technology literature, written for small-scale makers and home producers. The text below is the full English translation of the original Chinese workshop notes, covering materials and quantities, the step-by-step sequence, and the practical cautions recorded in the source. Roughly 2696 words of English technical text, translated and preserved without editing. It is intended for experimental and reference use, not for regulated or commercial certification.
ECG R wave detectorIn the process of analyzing the heart sound spectrum of patients with myocardial infarction, it is necessary to intercept the first (S1) and second (S2) heart sounds for analysis. From the ECG and heart sound time domain waveforms, we know that S1 and S2 occur after the R wave and T wave of the ECG respectively, and last for a period of time. Based on this feature, an ECG R wave peak detection and automatic threshold control circuit are designed to complete the interception of S1 and S2 (see Figure 25)The ECG signal recorded by the polyconductor tape recorder is amplified and sent to a narrow-band filter. The narrowband filter is used to extract the QRS wave and filter out the T wave and other interference signals. The narrowband filter has a center frequency of 17Hz and a bandwidth of 10Hz. …
Sign in to unlock
One-time payment per article, billed in credits (1 $ = 100 credits). You will review the invoice and the non-refundable digital-asset policy before anything is charged. The PDF is generated on demand and embeds a licensing watermark.
Unlock this article
One-time payment · permanent access after unlock · 1 $ = 100 credits
Member level pricing for this article
| Level | Cumulative top-up | Discount | Your price | You save |
|---|---|---|---|---|
| Free | Free | — | 4,481 credits | — |
| Bronze | $100.00+ | 2% off | 4,391 credits | 90 credits |
| Silver | $1,000.00+ | 5% off | 4,257 credits | 224 credits |
| Gold | $5,000.00+ | 10% off | 4,033 credits | 448 credits |
| VIP | $20,000.00+ | 15% off | 3,809 credits | 672 credits |
Prices are billed in credits (1 $ = 100 credits). Your level upgrades automatically as your cumulative top-up grows. Top up to unlock a higher discount ›
All articles are digital assets. Once a PDF is downloaded, the purchase is final and non-refundable.
Please log in to unlock this article.
Payment Methods
pay@viprole.com
Lei Cheng
pay@viprole.com
Lei Cheng