Experimental characterization of a high accuracy amperometric sense and control circuit for three-electrode biosensors

Enache, Andrei; Rusu, Ion; Bucur, Bogdan; Draghici, Florin; Pristavu, Gheorghe; Bucur, Madalina-Petruta; Enache, Florin; Brezeanu, Gheorghe

doi:10.1109/smicnd.2017.8101193

Cited by 2 publications

(2 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Compared with the three-electrode voltage amplifier, the ECG signal detected by this design is not accurate enough. It means that this design can not be used for precise medical treatment [10]. Under the condition of only use two electrodes, how to improve the measurement accuracy is the challenge we now face.…”

Section: Simulation Results Of the Voltage Amplifier For Ecg Equipmen...mentioning

confidence: 99%

A Double- electrodes Amplifier use for Portable ECG Equipment

Zhu¹

2023

HSET

View full text Add to dashboard Cite

Wearable electrocardiogram (ECG) sensors is a simple test that can be used to check people’s heart's rhythm and electrical activity. With individuals’ increasing attention to their own health, developing a timely and portable bio-sensing recorder has become an urgent task. This paper presents the working principle of a common ECG signal recorder. A double-electrode voltage amplifier that can be used for portable ECG sensors has been set out to design. The amplifier is mainly composed of a differential amplifier circuit, which can lower power supply and power consumption. CoolSpice environment was utilized to simulate the circuit and analyze the result. The simulation presented that the common-mode gain is under 30dB up to 5KHz and the differential-mode gain is larger than 40 dB up to 5KHz. And the total current consumption has been under 20uA. The result demonstrated that the amplifier can perform well. The noise from human body has been eliminated by the amplifier. The amplifier has the ability to extract and amplify clean ECG signals and its structure has the characteristics of low cost and portability. It may be used in portable wearable ECG sensor technology.

show abstract

Section: Simulation Results Of the Voltage Amplifier For Ecg Equipmen...mentioning

confidence: 99%

A Double- electrodes Amplifier use for Portable ECG Equipment

Zhu¹

2023

HSET

View full text Add to dashboard Cite

show abstract

“…In most prior studies [16,[20][21][22][23][24][25] these performances were measured under laboratory conditions, with the sensor small-signal C-V characteristics extracted using semiconductor parameter analyzers. In order to ensure precision, noise suppression, energy efficiency and portability requirements for sensor operation in real conditions, a readout circuit is mandatory [26][27][28][29][30]. However, contributions pertaining to such circuit architectures suitable for SiC-MOS capacitor hydrogen sensors are scarce [30].…”

Section: Introductionmentioning

confidence: 99%

PLL-Based Readout Circuit for SiC-MOS Capacitor Hydrogen Sensors in Industrial Environments

Enache

Draghici

Mitu

et al. 2022

Sensors

Self Cite

View full text Add to dashboard Cite

For proper operation in real industrial conditions, gas sensors require readout circuits which offer accuracy, noise robustness, energy efficiency and portability. We present an innovative, dedicated readout circuit with a phase locked loop (PLL) architecture for SiC-MOS capacitor sensors. A hydrogen detection system using this circuit is designed, simulated, implemented and tested. The PLL converts the MOS nonlinear small-signal capacitance (affected by hydrogen) into an output voltage proportional to the detected gas concentration. Thus, the MOS sensing element is part of the PLL’s voltage-controlled oscillator. This block effectively provides a small AC signal (around 70 mV at 1 MHz) for the sensor and acquires its response. The correct operation of the proposed readout circuit is validated by simulations and experiments. Hydrogen measurements are performed for concentrations up to 1600 ppm. The PLL output exhibited voltage variations close to those discernable from experimental C-V curves, acquired with a semiconductor characterization system, for all investigated MOS sensor samples.

show abstract

Experimental characterization of a high accuracy amperometric sense and control circuit for three-electrode biosensors

Cited by 2 publications

References 6 publications

A Double- electrodes Amplifier use for Portable ECG Equipment

A Double- electrodes Amplifier use for Portable ECG Equipment

PLL-Based Readout Circuit for SiC-MOS Capacitor Hydrogen Sensors in Industrial Environments

Contact Info

Product

Resources

About