温度测量ADI

简介：

问：模拟温度传感器的误差有几种，例如非线性误差、校准误差、重复性误差（回滞误差）以及时间漂移误差。这个在AD590JH的datasheet中提到过，请问在数字传感器中是否有类似误差？
答： Even digital temperature sensor, the digital output is also from analog signal from analog temperature sensor. Therefore, it has same type of errors. But as digital sensors integrate digitizing function, and are optimized on performances, it can greatly re

问：贵公司的那个型号的热敏二极管适合测试温度范围为－20度～85度？精度要求为＋—1度，8位的AD芯片采集
答： You can consider AD7411. It can test the remote diode temperature input. It integrates a 10 bit 8 channel ADC. The accuracy is +/- 2.0 degree.

问：我想问一下贵公司的AD7416能否在-25度~+75度的范围内提供1度的准确度？？谢谢!
答： The max accuracy is +/-2 degree when the temperature is from -25 to +100 degree.

问：测温要达到0.1度的精度，技术上哪些方面是关键？
如何排除系统存在的干扰？
答： You have to use the more accuracy sensor than semiconduct.It"s difficult to detect 0.1 degree using semiconduct technology.

问：请问，如何精确的测定ad574零漂？
答： You can use external circuit, to realize real-time calibration.

问：再问，如果还是用ad574,使用模糊pid算法，（注意：还是用开关器件控制加热器），测温和控温精度最大又可以达到多少？

答： The measurement accuracy is dependent on the sensor itself. The ADC or MCU"s algorithms won"t improve too much.

问：请问，仅使用ad574,通过简单的开关控制，测温和控温精度最大可以达到多少？
答： AD574 is only a ADC (12bit), so the the accuracy of temperature measurement is depending on your sensors, signal conditioning, and whole system design. By the way, we"ve many new parts which has same function, or better performance, suggest you use ne

问：how to calibrate your IC of temperature measurement?
答： You need to measure the known temperature with your circuit, set the calibration coefficient by software. If you need detailed help, please call 800-810-1742.

问：As you know, for the temperature measurement device, the most expensive part is temperature measurement part, your IC"s temperature measurement part is changeable or integrated?
答： Both, we provide itegrated and remove type both temperature measurement devices. Please contact our local office for more details.

问：大家好：（1）、贵公司能否提供数字温度传感器IC的详细应用方案给大家下载？（2）、传统的解决方案和贵公司应用IC的测温方案，优缺点各是什么？请详细分析。     谢谢各位专家。

答： We are sorry to say that we don"t have it now. Maybe we can provide it later. And compared to the conventional scheme, our IC solution can be stable, easy to use and small size.