کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1244226 | 969683 | 2007 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Low cost telemetry with PC sound card for chemical analysis applications Low cost telemetry with PC sound card for chemical analysis applications](/preview/png/1244226.png)
This work describes the development of a telemetric system in conjunction with a computer sound card for recording of signals. For signal transmission, a transmission wireless microphone was utilized, making the telemeter compatible with the sound card normally equipped inside a personal computer. The developed telemeter is a low-cost apparatus capable of remote monitoring. With the sampling rate of 10 Hz, 100% accuracy was obtained up to a distance of 30 m. The precision was good (%RSD = 0.03–0.09), with relatively low noise. The effective signal range was from 0 to 2 V, with approximately 1100 working steps (greater than 10 bit A/D). The telemetric system was shown to be suitable for wireless recording of outputs from spectrophotometer and pH meter. Potential applications in chemical analysis were demonstrated.
Journal: Talanta - Volume 71, Issue 2, 15 February 2007, Pages 605–609