Ds18b20 temperatūros jutiklio laidai

This paper proposes an automatic identification method for multiple digital temperature sensors DS18B20 on a single bus. By designing a circuit composed of a decoder 74LS138, a two-input four-NAND gate 74LS00P, and an analog switch CD4066, the DS18B20 digital temperature sensor software program is written using the Keil C51 tool. Under the control of the microcontroller, the system obtains and saves the serial numbers of all sensors in the form of power-on initialization, automatically identifies the sensors, and performs multi-point temperature measurement. The experimental results show that the system can match the obtained serial numbers with each sensor, so that the sensors can be installed and used, realizing true automatic identification.

Ds18b20 temperatūros jutiklis Laidai

DS18B20 sensor is a commonly used digital temperature sensor. Išvestis yra skaitmeninis signalas, kuri pasižymi mažo dydžio savybėmis, žemos techninės įrangos išlaidos, stiprus anti-interferencinis gebėjimas, ir didelis tikslumas. Skaitmeninį temperatūros jutiklį DS18B20 lengva prijungti, ir jis gali būti naudojamas daugeliu atvejų po supakavimo, pavyzdžiui, vamzdžio tipas, varžto tipas, magneto tipas, ir nerūdijančio plieno pakuotės tipas. Yra įvairių modelių, įskaitant LTM8877, LTM8874 ir pan.

It mainly changes its appearance depending on the application. The packaged DS18B20 can be used for cable trench temperature measurement, aukštakrosnės vandens cirkuliacijos temperatūros matavimas, katilo temperatūros matavimas, machine room temperature measurement, žemės ūkio šiltnamio temperatūros matavimas, švarios patalpos temperatūros matavimas, ammunition depot temperature measurement and other non-limiting temperature occasions. Wear-resistant and bump-resistant, mažo dydžio, lengva naudoti, and various packaging forms, suitable for digital temperature measurement and control of various small space equipment.

Ds18b20 temperature sensor and 3.5mm audio connector

1, Techninių charakteristikų aprašymas:
①, a unique single-wire interface,DS18B20 in the connection with the microprocessor only need a port line to achieve the two-way communication with the microprocessor DS18B20.
②, Temperatūros diapazonas -55 ℃ ~ +125 ℃, the inherent temperature error (pastaba, not the resolution,Here before is wrong) 1 ℃.
③, support multi-point networking,Multiple DS18B20 can be connected in parallel on a single three-wire,Can only be 8 in parallel,To achieve multi-point temperature measurement,If the number is too large,Will make the power supply voltage is too low,Thus causing the signal transmission instability.
④, maitinimo šaltinis: 3.0 ~ 5.5V / DC (parasitic power supply can be data lines)
⑤, in use does not require any external components
⑥, the measurement results in 9 to 12-bit digital serial transmission mode
⑦, stainless steel tube diameter Φ6
⑧, for DN15 ~ 25, DN40 ~ DN250 various media industrial pipe and small space equipment temperature measurement
⑨, the standard installation thread M10X1, M12X1.5, G1 / 2 “neprivaloma
⑩, PVC cable direct outlet or German ball junction box outlet,Lengva sujungti su kita elektros įranga.
DS18B20 + and Maxim Integrated information
Gamintojas Maxim Integrated, DS18B20+ yra temperatūros jutiklis.
Programos

The product is applicable to the temperature measurement and control field of freezer, granary, storage tank, telecommunication room, electric machine room, cable trunking and so on.
Bearing, cylinder, textile machinery, oro kondicionierius, and other small space industrial equipment temperature measurement and control.
Car air-conditioning, šaldytuvai, šaldikliai, and low-temperature drying oven, ir taip toliau.
Heating / cooling pipe heat metering,Central air conditioning household heat measurement and industrial temperature measurement and control.
Model specifications

Model Temperature range Installation thread Cable length Suitable pipe
TS-18B20 -55 į 125 None 1.5 m
TS-18B20A -55 ~ 125 M10X1 1.5m DN15 ~ 25
TS-18B20B -55 ~ 125 1/2 “G terminal box DN40 ~ 60