An ultrasonic rotary encoder and its application to torque estimation

Hara, Masaharu; Oho, Shigeru; Kaneko, Yuto

doi:10.1109/sas.2018.8336759

Cited by 4 publications

(2 citation statements)

References 17 publications

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“…Rotary encoders can be used to measure torque [4]- [6]. The MSP430 microcontroller can process the signal from the encoder to get better results in torque measurement using an encoder [7]. In addition to using an encoder, motor torque measurement can be carried out using a linear relationship between torque and magnetic flux density [8].…”

Section: Introductionmentioning

confidence: 99%

Simplification of the Prony Brake Dynamometer System Using Brake Caliper Load

Tjandra,

Suhartono,

Salim Suswanto

2023

International Journal of Science, Technology & Management

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The torque of the DC motor needs to be known to determine the maximum load that can be exerted at a given speed. Torque measurement can be done with a dynamometer. The dynamometer uses the Prony Brake type, which uses the principle of frictional force to provide a load on the motor. The application of frictional force uses brake capillary load to produce a dynamometer with the Prony Brake type that is simple in manufacture and testing but reliable and accurate in making measurements. In the Prony Brake dynamometer, there are usually two pieces of wood used as a link between the motor and the torque arm; at the end of the torque arm, there is a ballast whose ballast value is multiplied by the length of the arm to produce the torque value of the DC motor. The results of the trials that have been carried out are that the reading results of RPM sensors, weight sensors, and voltage sensors have a deviation of less than 2%, and the current sensor readings have a deviation of less than 5%. The Prony Brake dynamometer that has been made can read the maximum torque value with a deviation of about 2% from the existing data.

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Section: Introductionmentioning

confidence: 99%

Simplification of the Prony Brake Dynamometer System Using Brake Caliper Load

Tjandra,

Suhartono,

Salim Suswanto

2023

International Journal of Science, Technology & Management

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“…A new absolute angle measurement method using a phase-encoded binary graduated disk was presented in [19]. New encoders were introduced in [20]- [24]. The angular position of a shaft was measured using two absolute encoders in [25].…”

Section: Introductionmentioning

confidence: 99%

A New Method for Angular Speed Measurement with Absolute Encoder

Akkaya¹,

Kazan²

2020

ELEKTRON ELEKTROTECH

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The encoders are electromechanical devices that give information about the angular position and the number of turns of the shaft, which they are connected. These devices are divided into digital or analogue according to output types. On digital outputs, the output can be binary coded, gray coded or pulsed. The frequency (M) or period (T) method produces accurate results in pulse-output encoders. However, these methods alone cannot give accurate results in some encoder types, which are saw tooth type encoders that produce analogue outputs in different shapes. In this study, a new method was proposed, which reduces the relative error ratio too much below 1 % in an absolute encoder that produces an analogue output ranging from 0 V to 5 V according to the angular position of the shaft. Unlike in the studies in the literature, M method and Analog Digital Converter (ADC) were used together. Thanks to this proposed method (M + ADC), it is possible to increase the measurement accuracy of the encoders with analogue output in all speed regions.

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