ترموکوپل نوع K از سیم فلزی Ni-Cr و Ni-Al ساخته می شود. ارزان قیمت است و یکی از پرکاربردترین ترموکوپل ها می باشد و به کمک مبدل آنالوگ به دیجیتال ADS1120 می تواند دمای اندازه گیری شده در بازه 200- تا 700 درجه سانتی گراد با دقت 0.5 درجه سانتی گراد به سیگنال دیجیتال تبدیل کند و تا 2KSPS نرخ نمونه برداری داشته باشد.
Description:
CJMCU ADS1120 K type thermocouple module is an electrical device consisting of two dissimilar electrical conductors forming electrical junctions at differing temperatures.
There are many specialized kinds of thermocouples. They can combine different metals to measure various characteristics and temperature ranges, and produce specialized calibrations. The type K is the most common type of thermocouple. It’s inexpensive, accurate, reliable, and has a wide temperature range. The type K is commonly found in nuclear applications because of its relative radiation hardness.
The ADS1120 is a precision, 16-bit, analog-to-digital converter (ADC) that offers many integrated features to reduce system cost and component count in applications measuring small sensor signals. The device features two differential or four single-ended inputs through a flexible input multiplexer (MUX), a low-noise, programmable gain amplifier (PGA), two programmable excitation current sources, a voltage reference, an oscillator, a low-side switch, and a precision temperature sensor.
Application:
industrial
control and automation
Features:
Chip: ADS1120
Output Type: Digital
Temperature Range: –200°C ~ 700°C
Input Voltage: 2.3V ~ 5.5V
ADC: 16 bit
Accuracy: 0.5°C
Data Rates: Up to 2kSPS
Interface: SPI
Pin Number: 15 Pins
Low Current Consumption: As Low as 120 µA (Typ) in Duty-Cycle Mode
Programmable Gain: 1 V/V ~ 128 V/V
Simultaneous 50Hz and 60Hz Rejection at 20 SPS with Single-Cycle Settling Digital Filter
Internal 2% Accurate Oscillator
Size: 22mm x 33mm