供应*声波氧气传感器

地区:广东 珠海
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珠海莱柏电子科技有限公司

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特点

寿命长

*校准

卓越的长期稳定性

数字输出,串行接口

尺寸小

容易使用

成本低

 

 

应用

 

氧气浓缩器

纯度检测O 2/N 2混合气体

气体分析仪

 

 

 

PRODU* SUMMARY

 

PRINCIPLE-The speed of ultrasonic wave through a gas is a function of its effective molecular weight and the temperature of the gas. If the gas consists of only two variable components, nitrogen and oxygen, the oxygen concentration is a function of the effective molecular weight and the molecular weight of oxygen and nitrogen. Accordingly, the oxygen concentration of the gas can be calculated by measuring the temperature and propagation delay of the ultrasonic wave across the two transducers while the gas p*es between the transducers.

USOM-100 module uses advanced di*al signal processing and ultrasonic technology

to accurately measure the transmission speed of sound wave in the gas mixture, so it can accurately calculate the gas concentration. The module uses diffusion measurement, thus the flow change has little effect on the measurement. Di*al signal output is adapted to microcontroller applications.

 

产品规格

 

测量范围

20.8%~96.0% O2/N2 dry mixed gas

测量精度

±2%

重复性

Less than  ±1% FS

分辨率

0.1% O2 increments

环境温度

5~45

反应时间

Less than 30 seconds


 

样品气体压力

0~20kPa

样品温度

5~45

 

 

电流特点

 

参数

供应电压

DC 5V±0.5V

电源电流

Less than 60mA

串行接口(电路)

Baudrate       19200

Data Bits         8

Stop Bits         1

Parity            None

连接器

2.54mm pitch XH Wafer(4 Pins)

 

 

SERIAL INTERFACE

 

USOM-100 module  uses  serial  interface to  receive commands  and transmit data, which is ideal for microcontroller applications. User can send the following

command via  the  serial  interface  to  the  module, and  the  concentration can  be read from the receive data.

Send command:

 

0x55

0xAA

0x7E

0x02

0x4F

0x43

0x94

0x0E

0x0D

Return data format:

 

0x55

0xAA

0x7E

0x04

0x4F

0x43

M*

L*

SUM

XOR

0x0D

Return data consist of 11 bytes, of which 7, 8-byte is value for the concentration, it is

10 times of its real value in %. The 9, 10-bytes are SUM and XOR values from 4 to 8 byte. For example, the return data is

 

0x55

0xAA

0x7E

0x04

0x4F

0x43

0x03

0xB4

0x4D

0xBF

0x0D

0x03B4=948, then the concentration is 94.8%

 

 

 

DIMENSIONS

 

Pin1 VDD Pin2 TXD Pin3 RXD Pin4 GND

 

 

 

*产品的规格和数据不断更新中,不另行通知。

 

产地:加拿大S-A公司

型号/规格

USOM-200

品牌/商标

S-A