AN INHERENTLY LINEAR TRANSDUCER USING THERMAL SIGMA-DELTA MODULATOR

被引：0

作者：

Rosa, Valter C. ^{[1
]}

Oliveira, Amauri ^{[1
]}

Palma, Ligia S. ^{[1
]}

Amaral, Luiz Fernando G. T. ^{[1
]}

机构：

[1] Univ Fed Bahia, Dept Elect Engn, Salvador, BA, Brazil

来源：

XIX IMEKO WORLD CONGRESS: FUNDAMENTAL AND APPLIED METROLOGY, PROCEEDINGS | 2009年

关键词：

sigma-delta modulation; temperature transducer; thermal radiation transducer;

D O I：

暂无

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The aim of this article is to describe a feedback circuit with thermoresistive sensor based on thermal sigma-delta modulator. The circuit uses 1-bit first order sigma-delta modulator in which a considerable part of conversion functions is performed by the sensor. This transducer circuit is able to measure digital physical quantities that interact with the sensor: temperature, thermal radiation and fluid velocity. In this study, it is used to measure environment temperature, on which digital output is linearly dependent. Equations that support circuit behaviour, simulation results and experimental results are shown. Two architectures are presented, one completely analogue and other with some parts digitally implemented using microcontroller. In addition, it is presented a thermal radiation architecture version in which digital output is intrinsically linear to the thermal radiation measure.

引用

页码：1540 / 1545

页数：6

共 50 条

[1] Transducer with Thermal Sigma-Delta Modulator
Rosa, Valter da Conceicao
Oliveira, Amauri
2014 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE (I2MTC) PROCEEDINGS, 2014, : 119 - 123
[2] CMOS Sigma-Delta Thermal Modulator
Almeida, W. R. M.
Freire, R. C. S.
Catunda, S. Y. C.
Aboushady, H.
2010 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE I2MTC 2010, PROCEEDINGS, 2010,
[3] Thermal Sigma-Delta Modulator: A Temperature Measurement Application
Freitas, Georgina K. M.
Sa, Alan V. S.
Palma, Ligia S.
Freire, Raimundo C. S.
Oliveira, Amauri
2008 IEEE INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE, VOLS 1-5, 2008, : 1198 - +
[4] Thermal Radiation Measurement With Thermoresistive Sigma-Delta Modulator
Rosa, Valter da Conceicao
Oliveira, Amauri
Gunther, Chantal Jocelyne
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2016, 65 (10) : 2254 - 2264
[5] Sigma-delta modulator for bandpass signal
Kuo, CJ
Liu, CT
Hou, CJ
ISCAS 96: 1996 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS - CIRCUITS AND SYSTEMS CONNECTING THE WORLD, VOL 1, 1996, : 29 - 32
[6] The Design of the Integrator of Sigma-delta Modulator
Liu Xiaowei
Chen Song
Liu Liang
Yang Jian
Chen Weiping
MICRO-NANO TECHNOLOGY XIV, PTS 1-4, 2013, 562-565 : 477 - 481
[7] Fractional sigma-delta modulator in SiGe
Sobot, Robert
Stapleton, Shawn
Syrzycki, Marek
2007 CANADIAN CONFERENCE ON ELECTRICAL AND COMPUTER ENGINEERING, VOLS 1-3, 2007, : 530 - 533
[8] Noise Shaping in Sigma-Delta Modulator
Dawoud, D. S.
Akorli, Felix
WMSCI 2008: 12TH WORLD MULTI-CONFERENCE ON SYSTEMICS, CYBERNETICS AND INFORMATICS, VOL III, PROCEEDINGS, 2008, : 100 - +
[9] A third order sigma-delta modulator
Milovanovic, D
Savic, M
Nikolic, M
2004 24TH INTERNATIONAL CONFERENCE ON MICROELECTRONICS, PROCEEDINGS, VOLS 1 AND 2, 2004, : 605 - 608
[10] Hardware implementation of a sigma-delta modulator
Sofron, Emil
Serban, Gheorghe
Sandu, Florin
Iana, Gabriel
Serbanescu, Alexandru
OPTIM 2004: PROCEEDINGS OF THE 9TH INTERNATIONAL CONFERENCE ON OPTIMIZATION OF ELECTRICAL AND ELECTRONIC EQUIPMENT, VOL 4: APPLIED ELECTRONICS, ELECTRICAL ENGINEERING EDUCATION, 2004, : 33 - 38

← 1 2 3 4 5 →