Bioelectricity detection is an important technology in the field of medical science and technology, which uses specific sensors to capture the weak electrical signals inside the human body, which reflect the physiological state of the body. Bioelectric signals play a crucial role in medical diagnosis and health monitoring.

For example, pulse pulse wave (PPG) signals, as an important indicator of the state of the cardiovascular system, are also obtained through bioelectric detection technology. Nanochap's EPC001 chip revolutionizes pulse wave blood pressure monitoring with its excellent bioelectricity detection capability and high accuracy.

The Nanochap EPC001 chip is a System on Chip (SoC) designed for bioelectric signals. This chip integrates high-precision Electrocardiogram (ECG), Electroencephalogram (EEG), Electromyogram (EMG), and Pulse Wave (PPG) analog front-end (AFE), and is built with a powerful RISC-V microcontroller. This design gives the EPC001 a significant advantage in the use of pulse wave blood pressure testers, especially in high-precision testing.

Pulse wave blood pressure monitors indirectly measure blood pressure by monitoring pulse wave signals. Traditional blood pressure measurement methods usually use a cuff to compress an artery and determine the blood pressure value by auscultation or oscillometric methods. However, this method is cumbersome to use and not suitable for continuous monitoring. In contrast, blood pressure measurement technology based on pulse wave signals allows for non-invasive, continuous, real-time blood pressure monitoring.

The high-precision detection capability of EPC001 chip in pulse wave blood pressure detector is mainly reflected in the following aspects:

- High Sampling Rate and Bandwidth: The EPC001 provides a sampling rate of up to 32kHz and a separate acquisition system to ensure complete capture of the pulse wave signal. The high sampling rate means that more signal detail can be captured, resulting in improved measurement accuracy.

- Ultra-low noise programmable amplifier: The EPC001 has a built-in ultra-low noise programmable amplifier, as well as a 24-bit high-precision analog-to-digital converter (ADC). This design allows weak pulse wave signals to be converted to digital signals with maximum accuracy, further improving measurement accuracy.

- Powerful Data Processing Capability: The built-in RISC-V microcontroller supports complex signal processing algorithms and is capable of quickly processing and analyzing the acquired pulse wave signals. Through the hardware-implemented ECG/PPG feature extraction function (Heart App), the EPC001 is able to directly provide a series of metrics such as heart rate, QT interval, left ventricular ejection time (LVET), pulse wave arrival time (PAT), etc., which are of great significance for blood pressure measurements and cardiovascular health assessment.

In practical applications, the high-precision detection capability of the EPC001 chip enables the pulse wave blood pressure tester to provide more accurate and reliable blood pressure measurements. This is undoubtedly a great boon for hypertensive patients, patients with cardiovascular diseases and people who need long-term blood pressure monitoring.

In addition to high precision detection capability, the EPC001 chip also has the following technical advantages:

- Small size and high integration: The size of EPC001 chip is only 7×7mm, and the highly integrated design makes the pulse wave blood pressure detector more compact, lightweight and easy to carry and use.

- Low power consumption: EPC001 supports various low power consumption modes such as sleep mode, shutdown mode, standby mode, etc., which ensures that the pulse wave blood pressure tester can run stably for a long time and reduces the need for charging.

- Strong anti-interference performance: In complex environments, EPC001 can effectively shield external interference and provide more reliable measurement results.

- Rich interfaces and expandability: EPC001 provides a variety of digital communication interfaces such as UART, SPI, QSPI, I2C, I2S, etc., as well as a diversity of peripheral interfaces, which allows the SoC to be externally expanded with multiple different sensors, providing unlimited possibilities for the functional expansion of the Pulse Wave Blood Pressure Detector.

The use of Nanochap's EPC001 chip in the pulse wave blood pressure detector not only realizes high-precision and reliable blood pressure measurement, but also injects new vitality into the development of the pulse wave blood pressure detector by virtue of its technical advantages.