Oxygen temperature and humidity module

Traditional oxygen temperature and humidity acquisition generally uses single chip microcomputer as the control core , use A/D Module and display module for data collection , But the data accuracy of this model is low 、 The collection method is difficult . Traditional oxygen collection only needs to collect oxygen concentration by sensing the changes of capacitance and resistance , Often disturbed by external magnetic field , It is easy to produce safety hazards in flammable and explosive environment . In order to solve the above problems , Muwo technology has independently developed the oxygen temperature and humidity module , It can realize oxygen 、 High frequency acquisition and multi-faceted acquisition of temperature and humidity data , Network communication , Strong fault resistance .
The humidity collection board measures the humidity in the air through the detection device , Convert it into electrical signals or other forms of signal output according to certain rules , To meet the needs of customers . Its measuring range is wide 、 High accuracy 、 High accuracy and stability .

The temperature acquisition board is a sensor used to measure temperature , It can be divided into contact type and non-contact type , The contact temperature sensor can output the measured temperature in the form of digital isoelectric signal , Temperature collector for analysis and recording . Use single channel differential ADC, Amplify the circuit signal , It can collect data accurately and effectively , Two and three wire selector switches , Suitable for two acquisition modes , It can realize the switching of temperature two-wire system and three wire system data acquisition mode . Mainly adopts RS485 Communication protocol , Isolate the input of the power module , It has power reverse connection and protection function , Used in the module ARM processor , Have isolated communication interface , Overvoltage can be achieved 、 Overcurrent and other protection functions .
The oxygen collection board is mainly installed on the exhaust pipe , Operational amplifier is used as the core device , There is a layer of platinum inside and outside the tube , Play the role of electrode and catalysis , Inside of the pipe and atmospheric circulation , Keep the oxygen concentration constant ; The outside is in contact with the exhaust gas with low oxygen concentration . Under the high temperature of working exhaust , Oxygen is separated , Because of the concentration difference between inside and outside , Oxygen will flow from the high concentration side to the low concentration side , To produce an electrical signal , Oxygen acquisition is data acquisition and output . Mainly adopts RS485 Signal output , It has the function of signal isolation , Adopt standardized interfaces , It can support the exchange between multiple modules , Easy to operate .
When choosing the oxygen temperature and humidity module, we should consider the sensitivity of the sensor 、 stability 、 Frequency response and linear range , Correct selection of oxygen temperature and humidity module , Determines the measurement results of oxygen concentration and temperature and humidity . For example, when entering the power distribution room , We need to know the indoor oxygen concentration in advance , To determine whether it is possible to enter , At the same time, the change of temperature and humidity is also very important to the power distribution room , Therefore, oxygen temperature and humidity equipment is needed for environmental monitoring , To ensure safety .
Oxygen temperature and humidity module is now widely used in meteorological stations 、 Home appliance 、 Air conditioner 、 Dehumidifier and other fields .