Sensor:

An oxygen concentrator is a medical device that helps provide oxygen therapy to people with low levels of oxygen in their blood. Oxygen concentrators can increase the concentration of oxygen available in the ambient air to a higher oxygen concentration.

With the continuous improvement of modern people's health awareness, oxygen concentrators have become common health products in the family, but some oxygen concentrators are too bulky and inconvenient to carry, which limits the action of oxygen absorbers, especially for people who often go out, it is really a trouble, so portable oxygen concentrators are more and more favored by consumers.

The oxygen concentrator can be used in the battlefield, accident scene, field travel health care and the needs of various levels of people. It is broadly divided into wearable portable and transportable portable, which is powered by batteries. Wearable portable is a shoulder bag type to be worn on the body or worn on the waist, and the running portable is mostly used for both cars and homes. Portable oxygen generators generally use molecular sieves to produce oxygen, which refers to the use of the adsorption characteristics of molecular sieves at room temperature to separate oxygen from the air.

The oxygen concentrator consists of the oxygen concentrator host and accessories. The main engine of the oxygen generator is composed of a compressor, a battery, a solenoid valve, a molecular sieve, a circuit control system, a heat dissipation device, and a flow control device.

A good oxygen concentrator must choose excellent sensor elements. The sensor elements involved in an oxygen concentrator are oxygen sensors (oxygen batteries), inlet pressure sensors, and breathing port pressure sensors.

CPS610 is used as a pressure sensor to measure the inlet pressure port, and its specific parameters are as follows:

The CPS610 is a pressure sensor that measures gauge pressure. It consists of silicon, micromachined sensing element chips, and signal conditioning ASICs. The ASIC has been equipped with a ∑-Δ ADC with 24-bit resolution and outputs a highly accurate pressure value as a digital value. The pressure sensor element and ASIC are mounted inside the system package and the leads are bonded to the appropriate contacts. The CPS610 provides a digital output interface. It enables ESD robustness, fast response time, high accuracy and linearity, and long-term stability, all of which are fully calibrated and temperature-compensated.

The CPS610 supports bidirectional two-wire bus and data transmission protocol to output data. The processor that sends data to the bus is defined as a transmitter, and the CPS610 receives data as a receiver. The processor must be controlled by a master processor that generates a serial clock (SCL), controls bus access, and generates START and STOP conditions, while the CPS610 operates as a slave. When addressed, each CPS610 receive must generate an acknowledgment after receipt

per byte. The processor must generate an additional clock pulse acknowledgment bit associated with this. The CPS610 must pull down the SDA line during the acknowledgment clock pulse. In this way, the SDA line is stable at LOW during the HIGH period of confirming the relevant clock pulse.

CPS610 Differential Pressure Sensor

Features:

Range: 0-1kPa

The operating temperature range is -20~85

High sensitivity, high stability, high reliability

PCB on-board package

Differential pressure and gauge pressure are optional