Signal Generator Circuit Carrying Information as Embedded Features from Multi-Transducer Signals
A novel circuit for generating a signal embedded with
features about data from three sensors is presented. This suggested
circuit is making use of a resistance-to-time converter employing a
bridge amplifier, an integrator and a comparator. The second resistive
sensor (Rz) is transformed into duty cycle. Another bridge with
varying resistor, (Ry) in the feedback of an OP AMP is added in
series to change the amplitude of the resulting signal in a proportional
relationship while keeping the same frequency and duty cycle
representing proportional changes in resistors Rx and Rz already
mentioned. The resultant output signal carries three types of
information embedded as variations of its frequency, duty cycle and
amplitude.
[1] C. D. Johnson and H. Al. Richeh, "Highly accurate resistance
deviation to frequency converter with programmable sensitivity and
resolution," IEEE Trans. Instrum. Meas., vol. IM-35, pp. 178-181,
1986.
[2] K. Mochizuki and K.Watanabe, "A high-resolution, linear resistanceto
frequency converter," IEEE Trans. Instrum. Meas., vol. 45, pp.
761-764, 1996.
[3] S. Kaliyugavaradan "A Linear Resistance-To-Time Converter with
High Resolution," IEEE Transaction on Instrumentation and
Measurement, Vol. 49, NO. 1, February 2000.
[4] Vittorio Ferrari, Carla Ghidini, Daniele Marioli, and Andrea Taroni.
"Oscillator-Based Signal Conditioning with Improved Linearity for
Resistive Sensors," IEEE Transactions on Instrumentation and
measurement, Vol. 47, NO. 1, February 1998.
[5] Walt Kester, Editor, Bridge circuit; 1993
[6] Ferran Reverter, Manel Gasulla and Ramon Pall`as-Areny. "Analysis
of interference effects on period-to-digital conversions"
Instrumentation, Sensors and Interfaces Group, Castelldefels School
of Technology (EPSC), Technical University of Catalonia (UPC),
Avda del Canal Ol'─▒mpic s/n, C4, 08860 Castelldefels (Barcelona),
Spain
[1] C. D. Johnson and H. Al. Richeh, "Highly accurate resistance
deviation to frequency converter with programmable sensitivity and
resolution," IEEE Trans. Instrum. Meas., vol. IM-35, pp. 178-181,
1986.
[2] K. Mochizuki and K.Watanabe, "A high-resolution, linear resistanceto
frequency converter," IEEE Trans. Instrum. Meas., vol. 45, pp.
761-764, 1996.
[3] S. Kaliyugavaradan "A Linear Resistance-To-Time Converter with
High Resolution," IEEE Transaction on Instrumentation and
Measurement, Vol. 49, NO. 1, February 2000.
[4] Vittorio Ferrari, Carla Ghidini, Daniele Marioli, and Andrea Taroni.
"Oscillator-Based Signal Conditioning with Improved Linearity for
Resistive Sensors," IEEE Transactions on Instrumentation and
measurement, Vol. 47, NO. 1, February 1998.
[5] Walt Kester, Editor, Bridge circuit; 1993
[6] Ferran Reverter, Manel Gasulla and Ramon Pall`as-Areny. "Analysis
of interference effects on period-to-digital conversions"
Instrumentation, Sensors and Interfaces Group, Castelldefels School
of Technology (EPSC), Technical University of Catalonia (UPC),
Avda del Canal Ol'─▒mpic s/n, C4, 08860 Castelldefels (Barcelona),
Spain
@article{"International Journal of Electrical, Electronic and Communication Sciences:57582", author = "Sheroz Khan and Mustafa Zeki and Shihab Abdel Hameed and AHM Zahirul Alam and Aisha Hassan Abdalla and A. F. Salami and W. A. Lawal", title = "Signal Generator Circuit Carrying Information as Embedded Features from Multi-Transducer Signals", abstract = "A novel circuit for generating a signal embedded with
features about data from three sensors is presented. This suggested
circuit is making use of a resistance-to-time converter employing a
bridge amplifier, an integrator and a comparator. The second resistive
sensor (Rz) is transformed into duty cycle. Another bridge with
varying resistor, (Ry) in the feedback of an OP AMP is added in
series to change the amplitude of the resulting signal in a proportional
relationship while keeping the same frequency and duty cycle
representing proportional changes in resistors Rx and Rz already
mentioned. The resultant output signal carries three types of
information embedded as variations of its frequency, duty cycle and
amplitude.", keywords = "Integrator, Comparator, Bridge Circuit, Resistanceto-Time Converter, Conditioning Circuit.", volume = "2", number = "10", pages = "2278-4", }