The Application of I2C Bus Digital Sensor in Airflow Measurements

2011 ◽  
Vol 130-134 ◽  
pp. 108-111
Author(s):  
Yu Guang Guo ◽  
De Zhi Ren ◽  
Li Ping Xu
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Relative Error ◽  
Measurement System ◽  
Fast Response ◽  
High Accuracy ◽  
Low Power Consumption ◽  
Ultralow Power ◽  
Airflow Sensor

The application of a new microbridge mass airflow sensor is presented. Based on the introduction of the sensor’s I2C interface principle, TI’s ultralow power consumption MSP430F5438 micro controller is used as core processor to design a measurement system which has a good low power consumption character. The performances of the system are examined by the experiments. The result of the experiments can indicate that the relative error of the system is less than3.5%, and the sensor has the characteristics of high accuracy, low power consumption, fast response, strong anti-interference ability, etc.

Research on Embedded Roundness Measuring System

2012 ◽  
Vol 184-185 ◽  
pp. 1613-1617
Author(s):  
Jin Fang Zhu
Keyword(s):  
Data Collection ◽  
Power Consumption ◽  
Low Power ◽  
High Accuracy ◽  
Measuring System ◽  
Low Power Consumption ◽  
Measurement Principle ◽  
Graphic Construction ◽  
Collection Date ◽  
Roundness Measurement

This article studies the embedded SPC and its application in roundness measuring system by analyzing the current roundness measurement principle and technology. With analyzing the process of data collection, date treatment and various kinds of tool graphic construction, we study the feasibility of integrating SPC into roundness measurement and finally apply the embedded SPC as pure software into roundness measuring system. We design the roundness measuring system based on embedded SPC and develop the roundness measuring system of low power consumption, high accuracy and easy application, which is suitable for industry field usage.

Low power consumption and fast response H2S gas sensor based on a chitosan-CuO hybrid nanocomposite thin film

2020 ◽  
Vol 236 ◽  
pp. 116064 ◽  
Author(s):  
Fajr I.M. Ali ◽  
Saleh T. Mahmoud ◽  
Falah Awwad ◽  
Yaser E. Greish ◽  
Ayah F.S. Abu-Hani
Keyword(s):  
Thin Film ◽  
Power Consumption ◽  
Low Power ◽  
Gas Sensor ◽  
Fast Response ◽  
Low Power Consumption ◽  
Hybrid Nanocomposite ◽  
Nanocomposite Thin Film ◽  
H2s Gas Sensor

scholarly journals Dispersed-Monolayer Graphene-Doped Polymer/Silica Hybrid Mach-Zehnder interferometer (MZI) Thermal Optical Switch with Low-Power Consumption and Fast Response

Polymers ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 1898 ◽  
Author(s):  
Yue Cao ◽  
Daming Zhang ◽  
Yue Yang ◽  
Baizhu Lin ◽  
Jiawen Lv ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Power Consumption ◽  
Low Power ◽  
Optical Switch ◽  
Fast Response ◽  
Zehnder Interferometer ◽  
Low Power Consumption ◽  
Monolayer Graphene ◽  
Doped Polymer ◽  
Silica Hybrid

This article demonstrates a dispersed-monolayer graphene-doped polymer/silica hybrid Mach–Zehnder interferometer (MZI) thermal optical switch with low-power consumption and fast response. The polymer/silica hybrid MZI structure reduces the power consumption of the device as a result of the large thermal optical coefficient of the polymer material. To further decrease the response time of the thermal optical switch device, a polymethyl methacrylate, doped with monolayer graphene as a cladding material, has been synthesized. Our study theoretically analyzed the thermal conductivity of composites using the Lewis–Nielsen model. The predicted thermal conductivity of the composites increased by 133.16% at a graphene volume fraction of 0.263 vol %, due to the large thermal conductivity of graphene. Measurements taken of the fabricated thermal optical switch exhibited a power consumption of 7.68 mW, a rise time of 40 μs, and a fall time of 80 μs at a wavelength of 1550 nm.

Ion Gel-Coated Graphene Transistor for Ethanol Gas Sensing

2021 ◽  
Vol 105 ◽  
pp. 3-7
Author(s):  
De Sheng Liu ◽  
Jiang Wu ◽  
Zhi Ming Wang
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Industrial Production ◽  
Gas Sensing ◽  
Drunk Driving ◽  
Fast Response ◽  
Low Power Consumption ◽  
Operating Voltage ◽  
Ethanol Sensor ◽  
Ion Gel

Ethanol sensor has been widely used in our daily life and industrial production, such as drunk driving test, food fermentation monitoring, and industrial gas leakage monitoring. With the advent of the Internet of Things (IoT) era, ethanol sensors will develop towards miniaturization and low-power consumption in the near future. However, traditional ethanol sensors with large volumes and high-power consumption are difficult to meet these requirements. Therefore, it is urgent to study ethanol gas sensors based on new materials and new structures. Here, we demonstrated a flexible ethanol sensor based on an ion gel-coated graphene field-effect transistor (IGFET). The device has a small graphene channel size with a width of 300 μm and a length of 200 μm. The device showed a low operating voltage of less than |±1| V. When the device was put into an ethanol gas condition, the Dirac point voltage of the IGFET showed a negative shift, which means an n-type doping effect to the graphene channel. Furthermore, the sensor showed a normalized current change of-11% against an ethanol gas concentration of 78.51 g/L at a constant drain-source voltage of 0.1 V. In addition, the device exhibited a fast response time of ~10 s and a recovery time of ~18 s. Moreover, the detectable range of the device was found to as wide as 19.76-785.1 g/L. Based on the above results, the flexible IGFET-based ethanol sensor with small size and low-power consumption has great potential to be used in the industrial production of the IoT era.

A NOVEL SWITCHED-CURRENT SUCCESSIVE APPROXIMATION ADC

2011 ◽  
Vol 20 (01) ◽  
pp. 15-27 ◽  
Author(s):  
XIAN TANG ◽  
KONG PANG PUN
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Successive Approximation ◽  
High Speed ◽  
High Accuracy ◽  
Low Power Consumption ◽  
Cmos Process ◽  
Power Efficient ◽  
Successive Approximation Adc ◽  
Switched Current

A novel switched-current successive approximation ADC is presented in this paper with high speed and low power consumption. The proposed ADC contains a new high-accuracy and power-efficient switched-current S/H circuit and a speed-improved current comparator. Designed and simulated in a 0.18-μm CMOS process, this 8-bit ADC achieves 46.23 dB SNDR at 1.23 MS/s consuming 73.19 μW under 1.2 V voltage supply, resulting in an ENOB of 7.38-bit and an FOM of 0.357 pJ/Conv.-step.

Using Dual-Channel D/A Converters Design Successive Approximation A/D Converter

2015 ◽  
Vol 719-720 ◽  
pp. 611-614
Author(s):  
Jia Rong Wang ◽  
Xiao Dong Xia ◽  
Zong Da Zhang ◽  
Han Yang
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Successive Approximation ◽  
Low Cost ◽  
Electronic Devices ◽  
High Accuracy ◽  
Low Power Consumption ◽  
Digital Converter ◽  
Analog To Digital ◽  
Dual Channel

The successive approximation analog-to-digital converter (ADC) has been widely used in electronic devices due to the corresponding characteristics which are low cost, low power consumption, high accuracy and so on. This paper expounds a design of successive approximation A / D converter to show how to use TCL5615 which is a dual-channel serial 10-bit D/A converter (DAC) to make the conversion accuracy to reach 14-bit.

Sign in / Sign up

Export Citation Format

Share Document