Is the brand awareness of the humidity sensor better?

The installation location of the temperature sensor should be representative, avoid installation in temperature dead angles, strong magnetic fields and next to the furnace door, or places that are too close to the heating object. The junction box of the temperature sensor must not touch the container wall of the medium to be measured. The temperature at the junction box of the temperature sensor should not exceed 100, and the WZP type RTD temperature sensor using ceramic or mica platinum resistance elements should be installed in the occasion where there is no vibration or little vibration.

For the WZC type copper RTD temperature sensor, it should be avoided to be installed in places with strong vibration. For those occasions with vibration, you can choose an armored temperature sensor with better seismic performance. Thermocouple temperature sensors should be installed with as little temperature change as possible at the reference end and not more than 100 as much as possible.

When choosing an flameproof thermocouple temperature sensor, it is important to pay attention to the classification of the installation site....

If you consider the flue gas passage, the sensor will be full of dust after a long time, and the outside is covered with thick soot, can the temperature be measured accurately? Of course, if you don't have a lot of accuracy, you can. The first point is that the temperature sensor can be adsorbed in the flue, this is easy to solve, the difficulty is difficult, you say that you ask questions but do not say accurately, what is high temperature?

800 degrees is a high temperature, 10,000 degrees is also a high temperature, but you don't say how many degrees, what do you call me? You know, the difference of an order of magnitude between the sensors is very large!! It shouldn't be the sensor itself or the outgoing line, it should be considered.

Did you know?

Bosch Auto Parts, Huakong Xingye, MEACON, Sinomeasure, and Walker Vana are better brands.

1. Bosch auto parts

Bosch (Shanghai), a well-known brand of auto parts - brake fluid, originated in Germany in 1926, a subsidiary of Bosch Group, the world's leading manufacturer of auto parts.

2. Huakong Xingye

It is affiliated to Beijing Huakong Xingye Science and Technology Development, specializing in the production and sales of KLP-800 pressure sensors, HS-800 pressure transmitters, WZP Kaisu temperature sensors, etc. The company provides users with superior performance and reasonable sensors, instruments and solenoid valve products. These products are widely used in chemical industry, petrochemical industry, electric power, metallurgy, environmental protection, universities and scientific research institutions, which can meet the different product needs of different users.

3、meacon

MEACON brand is currently located in Hangzhou, Zhejiang Province, MEACON brand since its inception, deeply loved by the majority of users, although MEACON has achieved some good results, but has not slowed down the pace of progress, is still working hard to become the top brand in the industry.

4、sinomeasure

The current office of the sinomeasure brand is located in Hangzhou, Zhejiang, and the sinomeasure brand has been deeply loved by the majority of users since its inception, although sinomeasure has achieved some good results, but it has not slowed down the pace of progress, and is still working hard to become the top brand in the industry.

5. Walkwana

Walker brand belongs to Guangzhou Qiyang auto parts business, mainly sold on the Internet platform, Walker Vana brand since its inception, deeply loved by the majority of users, although Walker Vana has achieved some good results, but has not slowed down the pace of progress, is still working hard to become the top brand in the industry.

The temperature and humidity sensor chip I used thought it was okay.

It is the SHT75 of Sensrimao, one temperature measurement, one humidity measurement, temperature 12bit, humidity 14bit, and the peripheral circuit is simple, you can refer to it.

Nanjing Shengyi Technology's wireless temperature and humidity sensor.

There are too many, with Shengshi Ryan's sensors as the core: DHT90 DHT91 DHT95 These are small chips, packaged sensors DB111 DB115 DB130 DB171 DB120 These packaged sensors are generally high humidity, high temperature, threaded installation, dustproof and other characteristics, and some analog signals such as DB4201GS DB4101GS digital signal DB485GM10

The above are mainly based on Shengshi Ryan's sensors, and the digital I2C reading is very convenient and cost-effective.

The second type: domestic products like Aosong should be said to be okay, but the accuracy and stability are not as good as those imported by Shengshi Ryan.

But Osong's ** is very low.

The third type: like some South Korea's Honeywell, they have also launched some digital I2C technology, which is very mature.

Fourth: a humidity sensor in France or a humidity sensor with DB436 voltage output corresponding to direct linear output.

The fifth type is some miscellaneous capacitive type, resistive type.

Generally speaking, there are relatively many products in China that use Shengshi Ryan, this is not advertising, you can ask casually.

Temperature: DS18B20 range is 55 125 Pt100 range is 60 200

The pt1000 range is 100 300

Humidity: HM1500 range is 0 100RH

Take a look at it.

The LF series temperature and humidity sensor is a device that converts the temperature and humidity of the measured environment into standard DC voltage, DC current or RS485 digital signal output in a linear proportional manner. The LF series of water immersion sensors provides very accurate and reliable water immersion measurements based on the principle of optics and the principle of liquid conductivity. The above two types of products have passed CE safety regulations and electromagnetic compatibility certification, and are widely used in communication rooms, building automation, and warehouse environmental temperature, humidity and water immersion testing.

A1 Isolated Temperature Transmitter, A1 Temperature Transmitter, A40 Temperature Transmitter, E1 Humidity and Temperature Transmitter, E2 Humidity Transmitter, E3 Water Immersion Transmitter, E4 Water Immersion Transmitter.

Foreign mature products: French Humirel moisture-sensitive capacitor resistor HS1101 HS24LF

They also correspondingly made the corresponding analog output, voltage output, digital output module, HTF3223, HTG35 series, HTG3835CH

HM1500 and so on can be found out.

1.Definition of humidity sensor: It is a device that can convert the measured ambient humidity into an electrical signal.

It is mainly composed of two parts: moisture-sensitive components and conversion circuits, in addition to some auxiliary components, such as auxiliary power supply, temperature compensation, output display equipment, etc.

2.There are two main types of moisture-sensitive components: resistive type and capacitive type.

Electronic, mechanical, resistive, capacitive, domestic, foreign.