Universal Sensors and Transducers Interface for Mobile Devices: Metrological Characteristics
An experimental investigation of metrological characteristics of designed Universal Sensors and Transducers Interface (USTI-MOB) integrated circuit is described in the article. The USTI- MOB is based on the four novel patented methods for frequency (period), its ratio, phase shift and duty- cycle me...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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IFSA Publishing, S.L.
2015-05-01
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| Series: | Sensors & Transducers |
| Subjects: | |
| Online Access: | http://www.sensorsportal.com/HTML/DIGEST/may_2015/Vol_188/P_2655.pdf |
| Summary: | An experimental investigation of metrological characteristics of designed Universal Sensors and Transducers Interface (USTI-MOB) integrated circuit is described in the article. The USTI- MOB is based on the four novel patented methods for frequency (period), its ratio, phase shift and duty- cycle measurements, and has a non-redundant conversion time. Experiments have confirmed the high metrological performance at low power consumption (0.35 mA current consumption at Vcc = 1.8 V). So, the relative error of frequency and period measurements is constant in the whole specified measuring range of frequencies (from 0.25 Hz to 1.95 MHz) and with 95 % confidence does not exceed ±0.00089 % in the worst case. Metrological characteristics of measurements of other frequency-time parameters of signals make the USTI-MOB very suitable for various sensor systems design for mobile devices, IoT, etc.
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| ISSN: | 2306-8515 1726-5479 |