scholarly journals PERANCANGAN DAN IMPLEMENTASI TUNER GITAR OTOMATIS DENGAN PENGGERAK MOTOR SERVO BERBASIS ARDUINO

2016 ◽  
Vol 2 (1) ◽  
Author(s):  
Randi Yusuf Nasution ◽  
Hasanah Putri ◽  
Yuli Sun Hariyani
Keyword(s):  
Servo Motor ◽  
Op Amp ◽  
Selector Switch

Gitar merupakan salah satu alat musik yang paling digemari, dan dapat dimainkan oleh semua orang. Saat ini masih banyak ditemukan pengguna gitar yang tidak bisa melakukan tuning senar gitar dan jika dilakukan manual juga membutuhkan waktu yang lama untuk mendapatkan hasil tuning yang akurat. Hal ini dapat diatasi dengan perkembangan teknologi Pengguna gitar sekarang ini dapat melakukan tuning senar lebih mudah dan lebih cepat dengan tingkat toleransi kesalahan frekuensi tuning ± 1 Hz dengan menggunakan tuner gitar otomatis.Perancangan alat tuner gitar otomatis ini menggunakan 5 komponen pembentuk alat yaitu selector switch untuk memilih frekuensi yang akan diatur, Op amp untuk menguatkan amplitudo gelombang suara agar diterima arduino dengan baik, Arduino untuk menginisialisasi frekuensi dan memberi sinyal ke motor servo, Motor servo untuk melakukan tuning senar gitar, dan LED sebagai indikator tuning.Hasil dari penelitian ini adalah keakuratan tuning untuk setiap senar didapatkan rata-rata tuning paling baik yaitu senar 5 dengan rata-rata kesalahan tuning 0,07 Hz dan rata-rata tuning paling buruk yaitu senar 1 dengan rata-rata kesalahan tuning sebesar 0,8 Hz. Alat yang dapat membantu pengguna gitar melakukan tuning senar gitar secara otomatis dengan tingkat kesalahan maksimum ± 1 Hz dari standar frekuensi setiap nada senar gitar yang telah ditetapkan.

Noise-Coupled ΔΣAD Modulator with Shared OP-Amp

2009 ◽  
Vol 129 (12) ◽  
pp. 2167-2173 ◽  
Author(s):  
Hao San ◽  
Hajime Konagaya ◽  
Takafumi Yamada ◽  
Haijun Lin ◽  
Haruo Kobayashi ◽  
...  
Keyword(s):  
Op Amp

Semi Automatic T-Shirt Folding Machine Berbasis PID (Proportional Integral Derivative)

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Muhammad Apriliyanto ◽  
Miftachul Ulum ◽  
Koko Joni
Keyword(s):  
Ultrasonic Sensor ◽  
Proportional Integral Derivative ◽  
Servo Motor ◽  
Aesthetic Value ◽  
Proportional Integral ◽  
Door Opening ◽  
Dc Motors ◽  
The Aesthetic ◽  
The Right

<em>The process of folding clothes is one of the activities carried out in the laundry business or household. The activity is fairly easy but many people are still lazy to do it. As a result, clothes that have been washed will fall apart in certain rooms, thereby reducing the aesthetic value of a home. Semi Automatic T-Shirt Folding Machine is the right solution to make folding clothes easier and more time efficient. This tool is equipped with a servo motor that moves the folding board that has been designed in such a way that the user only needs to manghandle the shirt just once and simply push one button then the shirt will fold itself and will be neatly arranged through the clothes stacker board. The PID method is applied to DC motors that move under the clothes folder so that the buildup of clothes underneath will not be pressured upward when the clothes are piled up when they are folded. Ultrasonic sensor will measure the right height between the clothes with the door opening the stacking clothes with kp = 1, ki = 0.1, kd = 0.5 for thin clothes and kp = 5, ki = 1, kd = 2.5 for thick clothes so that the movement of the motor can adjust its speed . This tool can fold one shirt in 16.83 seconds 11 seconds faster than folding clothes manually</em>

Pulse-Width Modulated Amplifier for DC Servo System and Its Matlab Simulation

2015 ◽  
Vol 9 (1) ◽  
pp. 625-631
Author(s):  
Ma Xiaocheng ◽  
Zhang Haotian ◽  
Cheng Yiqing ◽  
Zhu Lina ◽  
Wu Dan
Keyword(s):  
Mathematical Model ◽  
Transfer Function ◽  
Input Signal ◽  
Pulse Width ◽  
Rotation Speed ◽  
Servo Motor ◽  
Matlab Simulation ◽  
Pulse Width Modulated ◽  
Signal Changes ◽  
The Relationship

This paper introduces a mathematical model for Pulse-Width Modulated Amplifier for DC Servo Motor. The relationship between pulse-width modulated (PWM) signal and reference rotation speed is specified, and a general model of motor represented by transfer function is also put forward. When the input signal changes, the rotation speed of the servo motor will change accordingly. By changing zeros and poles, transient performance of this system is discussed in detail, and optimal ranges of the parameters is recommended at the end of discussion.

Improvement of Gain Accuracy and CMRR of Low Power Instrumentation Amplifier Using High Gain Operational Amplifiers

2020 ◽  
Vol 12 (3) ◽  
pp. 168-174
Author(s):  
Rashmi Sahu ◽  
Maitraiyee Konar ◽  
Sudip Kundu
Keyword(s):  
Low Power ◽  
Building Blocks ◽  
High Gain ◽  
The Other ◽  
Operational Amplifiers ◽  
Instrumentation Amplifier ◽  
Biomedical Signals ◽  
Op Amp ◽  
Op Amps ◽  
Multi Stage

Background: Sensing of biomedical signals is crucial for monitoring of various health conditions. These signals have a very low amplitude (in μV) and a small frequency range (<500 Hz). In the presence of various common-mode interferences, biomedical signals are difficult to detect. Instrumentation amplifiers (INAs) are usually preferred to detect these signals due to their high commonmode rejection ratio (CMRR). Gain accuracy and CMRR are two important parameters associated with any INA. This article, therefore, focuses on the improvement of the gain accuracy and CMRR of a low power INA topology. Objective: The objective of this article is to achieve high gain accuracy and CMRR of low power INA by having high gain operational amplifiers (Op-Amps), which are the building blocks of the INAs. Methods: For the implementation of the Op-Amps and the INAs, the Cadence Virtuoso tool was used. All the designs and implementation were realized in 0.18 μm CMOS technology. Results: Three different Op-Amp topologies namely single-stage differential Op-Amp, folded cascode Op-Amp, and multi-stage Op-Amp were implemented. Using these Op-Amp topologies separately, three Op-Amp-based INAs were realized and compared. The INA designed using the high gain multistage Op-Amp topology of low-frequency gain of 123.89 dB achieves a CMRR of 164.1 dB, with the INA’s gain accuracy as good as 99%, which is the best when compared to the other two INAs realized using the other two Op-Amp topologies implemented. Conclusion: Using very high gain Op-Amps as the building blocks of the INA improves the gain accuracy of the INA and enhances the CMRR of the INA. The three Op-Amp-based INA designed with the multi-stage Op-Amps shows state-of-the-art characteristics as its gain accuracy is 99% and CMRR is as high as 164.1 dB. The power consumed by this INA is 29.25 μW by operating on a power supply of ±0.9V. This makes this INA highly suitable for low power measurement applications.

Dynamic and Positioning Performances of Linear Electromechanical Actuator

2015 ◽  
Vol 809-810 ◽  
pp. 682-687
Author(s):  
Vasile Nasui ◽  
Mihai Banica ◽  
Dinu Darabă
Keyword(s):  
Dynamic Characteristics ◽  
Practical Importance ◽  
Correct Identification ◽  
Positioning System ◽  
Positioning Error ◽  
Servo Motor ◽  
Positioning Accuracy ◽  
Electromechanical Actuator ◽  
Initial Errors ◽  
Selection For

This paper presents the dynamic characteristics and the proposed positioning performance of the system to them investigated experimentally. In this research, we developed the positioning system and we evaluated positioning accuracy. The developed system uses a servo motor for motion actuation. In this paper, we focused on studying the dependency of the positioning error – elementary errors – the position of the conducting element for the mechanism of the transformation of the rotation translation movement, representatively the mechanism screw – screwdriver and on emphasizing the practical consequences in the field of design, regulation and exploitation of the correct identification of all the initial errors in the structure of the mechanism, their character and the selection for an ultimate calculus of these which are of a real practical importance.

scholarly journals Research and Implementation of New Energy Vehicle Servo Motor EMC Testing System

2021 ◽  
Vol 1846 (1) ◽  
pp. 012016
Author(s):  
Peipei Li ◽  
Qingjun Deng ◽  
Yi Zhao ◽  
Jianyu Hu ◽  
Yong Liu ◽  
...  
Keyword(s):  
Testing System ◽  
Servo Motor ◽  
New Energy ◽  
New Energy Vehicle
Sign in / Sign up

Export Citation Format

Share Document