scholarly journals The Application of Equal Precision Frequency Measurement Technology in Motor Speed Measurement System Based on CPLD

2016 ◽  
Author(s):  
Hui Li ◽  
Jing Li
Keyword(s):  
Measurement System ◽  
Frequency Measurement ◽  
Measurement Technology ◽  
Motor Speed ◽  
Speed Measurement ◽  
Precision Frequency

Error Analysis and Improvement of Equal Precision Frequency Measurement

2014 ◽  
Vol 687-691 ◽  
pp. 841-846 ◽  
Author(s):  
Rong Xiang Wang ◽  
Xia Zhang
Keyword(s):  
Error Analysis ◽  
Measurement System ◽  
Measurement Accuracy ◽  
Frequency Measurement ◽  
Frequency Count ◽  
Frequency Multiplication ◽  
Circuit Performance ◽  
Standard Frequency ◽  
Synchronization Signal ◽  
Precision Frequency

In accordance with the principle of equal precision frequency measurement and theory of errors, in this paper, the problems are discussed that the equal precision frequency measurement eliminates the standard frequency count error. In order to reduce the relative error and improve the measurement accuracy, a method is proposed for phase coincide detection between standard frequency multiplication and measurement frequency demultiplication to open or shut the gate, at the same time, a signal selector is also used to improve circuit performance. This method can effectively solve the problem that the frequency can not be detected without the synchronization signal and improve the performance of the frequency measurement system.

High-precision frequency measurement system based on different frequency quantization phase comparison

Measurement ◽  
2018 ◽  
Vol 122 ◽  
pp. 220-223 ◽  
Author(s):  
Baoqiang Du ◽  
Songlin Li ◽  
Guangming Huang ◽  
Xin Geng ◽  
Zhuo Li ◽  
...  
Keyword(s):  
High Precision ◽  
Measurement System ◽  
Frequency Measurement ◽  
Precision Frequency

Design of Rotational Speed Measurement System Based on the Hall Sensor

2013 ◽  
Vol 427-429 ◽  
pp. 596-599 ◽  
Author(s):  
Xing Hong Kuang ◽  
Zhe Yi Yao ◽  
Zhe Yi Yao ◽  
Shi Ming Wang
Keyword(s):  
Frequency Response ◽  
High Precision ◽  
Measurement System ◽  
Rotational Speed ◽  
Hall Sensor ◽  
Motor Speed ◽  
Speed Measurement ◽  
Working Principle ◽  
Sensor Measurement

This paper introduces a design of a STC89C52 microcontroller as the main controller, the motor speed is measured by the Hall sensor. This design uses integrated Hall sensor, which has a frequency response, high precision and anti-interference ability. This article describes the working principle of the method and method of use of the Hall sensor measurement speed

Online Speed Detection of Induction Motors Based on Tooth Harmonic

2011 ◽  
Vol 58-60 ◽  
pp. 2517-2521
Author(s):  
Qing Xin Zhang ◽  
Hai Bin Li ◽  
Jin Li
Keyword(s):  
Induction Motors ◽  
Rotor Speed ◽  
Motor Speed ◽  
Stator Core ◽  
Current Harmonic ◽  
Stator Current ◽  
Speed Measurement ◽  
Frequency Components ◽  
Air Gap Magnetic Field ◽  
Alveolar Surface

Many methods have been used to detect the motor speed. All of these methods are based on the parameter equation of motor and the detection results are influenced by parameters of induction motor more or less. The research of Speed Measurement method without of Motor parameters effect is very significant. Based on the harmonic generated in the air gap magnetic field by the stator core on the alveolar surface, directly by the analysis and testing of stator current harmonic, the rotor speed is detected which is proportional to the speed of frequency components. Experiment results show that this method is good, and the accuracy achieve a desired effect in real time.

Development of high speed measurement system for cell-scaffold interaction

2015 ◽  
Author(s):  
Yu Hirano ◽  
Masaru Kojima ◽  
Mitsuhiro Horade ◽  
Kazuto Kamiyama ◽  
Yasushi Mae ◽  
...  
Keyword(s):  
Measurement System ◽  
High Speed ◽  
Speed Measurement ◽  
Cell Scaffold

Analisis Sistem Kelistrikan pada Beban Motor Mesin Pencacah Sampah Plastik

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Yanolanda Suzantry Handayani ◽  
Junas Haidi ◽  
Agun Mardian
Keyword(s):  
Single Phase ◽  
Plastic Waste ◽  
Motor Power ◽  
Electric Motors ◽  
Motor Speed ◽  
Speed Measurement ◽  
Waste Load ◽  
A Chain ◽  
Almost All ◽  
Modern Era

In this modern era, the activities of almost all humans depend on machines they make, such as single-phase induction electric motors, which are used to chop plastic waste. This chopping machine aims to help plastic collectors process plastic waste into small pieces, making it easier to pack and ship plastic out of the area for reprocessing. The plastic waste shredding machine is made using a crushing system with a fan-shaped blade construction consisting of 39 blades divided by two rotating rows opposite the cover box using a chain motor gear transmission element. Most of the chopper machines on the market use engines with diesel or diesel fuel, therefore a chopper machine using an electric motor is designed to compare the motor power without the addition of capacitors and capacitors. The waste load used for motors without additional capacitors, medium and large bottles measuring 375 ml to 1500 ml, the machine can chop as much as 800 grams with the highest measurement of power 578.0 Watt, current 4.192 A, the lowest motor speed measurement is 1414 rpm and the reducer speed is 22.9 rpm . The waste load used for motors with additional capacitors, medium and large bottles measuring 375 ml to 1500 ml, the machine can chop 1000 grams with the highest measurement of power 732.7 Watt, current 4.149 A, the lowest motor speed measurement is 1464 rpm and the reducer speed is 22.9 rpm.

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