Design of Safety Analog Voltage Acquisition Module

2021 ◽  
Author(s):  
Junyuan Shen ◽  
Huan Ding ◽  
Xiguo Ren ◽  
Shumin Ge ◽  
Yimin Wang ◽  
...  
Keyword(s):  
Analog Voltage

scholarly journals A Mutual Capacitance Touch Readout IC with Synchronization in Touch and Mobile Display Driving for High Refresh Rate AMOLED Panels

Micromachines ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 922
Author(s):  
Seunghoon Ko
Keyword(s):  
System Architecture ◽  
Noise Suppression ◽  
Touch Screen ◽  
Horizontal Line ◽  
Time Sharing ◽  
Refresh Rate ◽  
Front End ◽  
Scan Rate ◽  
Mutual Capacitance ◽  
Analog Voltage

This paper presents a mutual capacitance touch readout IC architecture for 120 Hz high-refresh-rate AMOLED displays. In high-refresh-rate AMOLED panels, whole pixels in a horizontal line should be updated without any time-sharing with each other, leading to an amplified display noise on touch screen panel (TSP) electrodes. The proposed system architecture mitigates severe display noise by synchronizing the driving for the TSP and AMOLED pixel circuits. The proposed differential sensing technique, which is based on noise suppression in reference to mutual capacitance channels, minimizes common-mode display noise. In the front-end circuit, intrinsic circuit offset is cancelled by a chopping scheme, which correlates to the phase of the driving signals in the TSP driver and operating clocks of the front-end. Operating at a 120 Hz scan-rate, it reduces display noise by more than 11.6 dB when compared with the conventional single-ended TSP sensing method. With a built-in 130-nm CMOS, a prototype IC occupies an area of 8.02 mm2 while consuming 6.4-mW power from a 3.3 V analog voltage supply.

scholarly journals Rancang Bangun Alat Pengering Pelepah Pisang(Menggunakan Metode Controller Chien Regulator I dan Chien Servo I Sebagai Tuning Kontrol PI)

2018 ◽  
Vol 2 (1) ◽  
pp. 1-7
Author(s):  
Irianto Irianto ◽  
Suhariningsih Suhariningsih ◽  
Viviana Ratna Dewanti
Keyword(s):  
Economic Value ◽  
Temperature Response ◽  
Weather Conditions ◽  
Digital Data ◽  
Pi Control ◽  
Drying Process ◽  
Final Project ◽  
Tuning Methods ◽  
Analog Voltage ◽  
Banana Stem

Bananas provide many health benefits because they have enough vitamin A for daily body vitamins. Benefits of bananas are not only found in the fruit alone. Banana stem is rarely used because it is considered not to have more benefits and is only considered as waste. However, banana stem can be transformed into various forms of beautiful crafts and high economic value. Banana banana is dried first before being processed into various handicrafts. The process of drying banana is very dependent on the weather conditions and the heat of the sun. Conventional banana drying process takes approximately 70 hours with a solar temperature of about 40oC. The solution to this problem is, design and manufacture a microcontroller based banana bum dryer using PI control to regulate the temperature and utilize the heater as an alternative heat source. This PI control uses Chien Regulator I and Chien Servo I tuning methods. In this Final Project, temperature and banana moisture content is measured. The control will adjust the exhaust fan when the temperature read by LM35 is displayed on LCD 4x20 for temperature monitoring. To adjust the AC-AC voltage controller voltage on the heater, depending on the angle of ignition of the TCA785 IC. DAC of Microcontroller ATMega16 will convert the digital data released microcontroller into analog voltage. The Kp and Ki values used are Kp = 5 and Ki 0.625 using Chien Regulator I method and Kp = 4,126 and Ki 0.414 using Chien Servo I method The drying process takes 16 hours with water content of 4.76% at ± 65oC using Chien Servo I method because the temperature response is more stable.

Continuous recording of arteriolar dimensions with a television microscope

1963 ◽  
Vol 18 (5) ◽  
pp. 1041-1042 ◽  
Author(s):  
Curt A. Wiederhielm
Keyword(s):  
Experimental Study ◽  
Electron Beam ◽  
Viscoelastic Properties ◽  
Continuous Recording ◽  
Time Interval ◽  
Short Term ◽  
Small Arteries ◽  
Glass Capillaries ◽  
Time Required ◽  
Analog Voltage

A system which permits continuous recording of dimensions of microscopic blood vessels is described. The system utilizes information contained in the video signal of a television microscope to develop an analog voltage proportional to the time required for the electron beam to sweep across the image of the blood vessel. This time interval is also proportional to the dimension of the vessel. Calibration of the system yielded a standard error of estimate of ±3.7 μ on a series of glass capillaries, ranging in size from 15 to 150 μ. The rise time of the system was in the order of 40 msec. Long- and short-term drift was less than 3 μ/hr. The system is used in an experimental study of viscoelastic properties of small arteries and arterioles. microcirculation; viscoelastic properties; frog mesentery Submitted on April 17, 1963

scholarly journals Second-Harmonic Generation Imaging of Membrane Potential with Photon Counting

2008 ◽  
Vol 14 (6) ◽  
pp. 526-531 ◽  
Author(s):  
Jiang Jiang ◽  
Rafael Yuste
Keyword(s):  
Membrane Potential ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Photon Counting ◽  
Analog Voltage ◽  
Second Harmonic Generation Imaging ◽  
Kinetics Of ◽  
Small Voltage ◽  
Pulse Variation

AbstractSecond-harmonic generation (SHG) can be used for imaging membrane potential in neurons, but poor signal-to-noise (S/N) limits accurate measurements of small voltage transients. We use photon counting to improve the S/N of weak SHG signal detection. Photon counting generates shot-noise limited and integrable signals, eliminates pulse-to-pulse variation, and built-in discriminators reduces the background to practically zero. In single trials, by using photon counting, we obtain a more than a twofold S/N increase over analog voltage detection. Trial-to-trial variability is also reduced by 50%. Finally, we show that, using photon counting, the kinetics of fast events such as action potentials can be recorded more accurately.

Micro-Scale Thermal Sensor Manufacturing for Semiconductor Furnace Chamber

2012 ◽  
Author(s):  
Hongcheon Yang ◽  
Jun Young Kim ◽  
Kwang-Sun Kim
Keyword(s):  
Semiconductor Device ◽  
Furnace Chamber ◽  
Small Scale ◽  
Thermal Sensor ◽  
Micro Scale ◽  
Thermoelectric Voltage ◽  
Scale Temperature ◽  
Pattern Size ◽  
Different Temperatures ◽  
Analog Voltage

As the demand of complex and small scale semiconductor devices has been increased, the measurement technologies were developed to meet the accurate requirement in semiconductor manufacturing process. The uniform temperature requirement on the wafer is the major factor related to the semiconductor device yield. It is normally acquired from the thermocouples following the inner wall of the chamber. However, since the temperature difference between the wall of equipment and the surface of wafer is existed, the actual wafer temperature is commonly measured by a thermocouple wafer to calibrate the temperature measurement accuracy of the equipment. However, as the diameter of the commercial thermocouple wires is larger than the recently demanded pattern size, the TC wafer has not been able to measure the micro scale temperature differences on the micro patterned wafer. We, therefore, designed a micro-scale thermal sensor. The developed sensor has 37 sets of the measurement points on a 4-inch silicon wafer. The size of the measurement point is approximate to 16 um2. Two alloys, chromel and alumel which are as same as the materials of the K-type thermocouple are used to generate the thermoelectric voltage. The sensor has the temperature range of −200°C to 1300°C. The commercial K-type thermocouple extension wires are connected to the pads of the sensor array and they transfer the analog voltage data to a data acquisition device (DAQ). The sensor was calibrated by comparing the EMF voltage at different temperatures to the standard thermocouple EMF voltage. With the developed micro-scale thermal sensor system, the temperature distribution of the wafer in the furnace chamber is obtained.

Two Quadrant Analog Voltage Divider and Square-Root Circuits Using OTA and MOSFETs

2020 ◽  
Vol 39 (12) ◽  
pp. 6358-6385
Author(s):  
Ajishek Raj ◽  
D. R. Bhaskar ◽  
Pragati Kumar
Keyword(s):  
Voltage Divider ◽  
Square Root ◽  
Analog Voltage

SCM Based High Precision Temperature Controller Design

2013 ◽  
Vol 313-314 ◽  
pp. 549-552 ◽  
Author(s):  
Zhen Hua Han ◽  
Ze Hu Feng
Keyword(s):  
Water Temperature ◽  
Real Time ◽  
Temperature Control ◽  
Control Method ◽  
Controller Design ◽  
Heating Time ◽  
Single Chip ◽  
The Real ◽  
Pid Algorithm ◽  
Analog Voltage

t is designed by adopting SUNPLUS SPCE061A version 16-bits Single Chip Microcomputer; it has realized functions as manual setting temperature, automatic temperature control, showing the real-time temperature of water. The testing mode of water temperature adopts AD590 version integrated analog temperature sensor to perceive the temperature of water in vessels and uses operational amplifier to amplify minute analog voltage signal outputted by sensor. It employs keyboard scan mode to set target temperature (40°C~90°C) and displays dynamically the real-time temperature of water with digestion. The system controls the guide circuit and closing of the heating device by using relay circuit, achieving the aim of keeping design temperature constant essentially. PID algorithm is adopted in water temperature control method. The proportion, integration and differential constant in PID algorithm are debugged with experiments in order to control the proportion of heating time and reduce the adjusting time of the system. The system boasts the advantages of high controlling precision, stability and reliability, flexible operation, strong currency.

A new analog voltage sorter

1992 ◽  
Vol 41 (5) ◽  
pp. 714-716 ◽  
Author(s):  
V.V.B. Rao ◽  
D.C. Kar
Keyword(s):  
Analog Voltage
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