Product history:
The history of pulse oximeters dates back to the 1970s, when the first early pulse oximeter prototypes began to appear. With the development of technology and the advancement of the medical device industry, pulse oximeters have gradually become more accurate, portable and intelligent. In terms of the development of PCBA technology, with the continuous advancement of semiconductor technology, the manufacturing process of PCBA has also been greatly improved. Modern pulse oximeter PCBA adopts advanced SMT (surface mount technology) and assembly process, making the device more stable and reliable.
Product specifications:
This pulse oximeter solution uses the SIC8833 chip, the package model is QFN32, plus the peripheral auxiliary execution circuit, and is developed and designed through the microcontroller program. The pulse oximeter PCB assembly can achieve the following functions:
Working voltage: 2 AA alkaline batteries.
Quiescent current: less than 10μA.
Blood oxygen saturation (SPO2) resolution: 1%.
Blood oxygen saturation (SPO2) accuracy: range from 70% to 100%, ±2%.
Pulse rate (PR) resolution: 1bpm.
Pulse rate (PR) accuracy: 30BPM~250BPM range, accuracy deviation ≤±2BPM or 2% (whichever is greater).
Display direction: Four-sided switching function, the display direction can be selected by pressing the button.
Working standby current: less than 30mA.
Battery life: more than 20H.
Communication method: Bluetooth, WiFi.
Product production process:
The production process of pulse oximeter (PCBA) involves many key steps, including the determination of schematics and layout drawings in the design stage, component procurement, design in the PCB manufacturing process, production of printed cathodes, photolithography, etching, drilling, etc. Process, SMT chip technology to paste components on the PCB, connection lines in the assembly stage, installation of the shell, testing, debugging process to ensure the normal operation of each function, packaging process, and quality control and inspection.
Product target customer groups:
The target customer groups of pulse oximeter PCB assembly mainly include medical device manufacturers, hospitals, clinics, individual users and other healthcare institutions. Medical device manufacturers are the main customer group, and they need PCBA as a core component to produce pulse oximeter products. Hospitals and clinics are direct customers of pulse oximeters to monitor patients' blood oxygen saturation and pulse data. Individual users may purchase home pulse oximeters for self-monitoring, especially for people with respiratory or cardiovascular disease.
Our BQC Workshop：
Our factory floor is a highly specialized and efficient operation in which workers work closely together to ensure product quality and productivity. It is an environment filled with technology and innovation to provide customers with high quality circuit board assembly services.
FAQ:
1. How to choose PCB board material?
The choice of PCB board material must strike a balance between meeting design requirements, mass production, and cost. The design requirements include both electrical and mechanical components.
2. How to avoid Gordon interference?
The basic idea to avoid high-frequency interference is to minimize the interference of high-frequency signal electromagnetic fields, which is the so-called crosstalk. You can increase the distance between high-speed signals and analog signals, or add ground.
guard/shunt traces next to analog signals. Also pay attention to the noise interference from digital ground to analog ground.
3. How to solve the problem of signal integrity in high-speed design?
Signal integrity is basically a matter of impedance matching. The solution is to rely on termination and adjusting the wiring topology.
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