Radial Lip Seal Torque--Measurement Method and Results

2002 ◽  
Author(s):  
Keyword(s):  
Measurement Method ◽  
Torque Measurement ◽  
Lip Seal

Validierung einer optischen Drehmomentmessung*/Validation of an optical torque measurement

2017 ◽  
Vol 107 (09) ◽  
pp. 590-593
Author(s):  
T. Schneider ◽  
J. Wortmann ◽  
B. Eilert ◽  
M. Stonis ◽  
L. Prof. Overmeyer
Keyword(s):  
Measurement Method ◽  
Rotation Angle ◽  
State Of The Art ◽  
Torque Sensor ◽  
Torque Measurement ◽  
Research Project ◽  
Industrial Sectors ◽  
Current State ◽  
Stand Der Technik ◽  
Optical Torque

Das Erfassen von Drehmomenten durch Sensoren sowie das Erzeugen von Drehmomenten stellen eine wichtige Basis für viele Industriezweige dar. Im Rahmen eines Forschungsprojektes wurde ein optisches, berührungsloses Messverfahren zur absoluten Drehwinkel- und Drehmomentmessung entwickelt. Zum Vergleich mit dem aktuellen Stand der Technik wurde ein Versuchsstand aufgebaut sowie ein Referenzdrehmomentsensor eingesetzt. Die Ergebnisse dieser Validierung werden in diesem Fachaufsatz vorgestellt.   The measurement of torque via sensors as well as the generation of torque are the basis of many industrial sectors. Within a research project an optical and non-contact measurement method to detect the absolute rotation angle and torque was developed. For comparison with the current state of the art torque sensors a test stand was built and compared to a reference torque sensor. The results of this validation are presented in the present paper.

scholarly journals Torque Measurement of 3-DOF Haptic Master Operated by Controllable Electrorheological Fluid

2015 ◽  
Vol 15 (1) ◽  
pp. 13-18 ◽  
Author(s):  
Jong-Seok Oh ◽  
Seung-Bok Choi ◽  
Yang-Sub Lee
Keyword(s):  
Measurement Method ◽  
Electrorheological Fluid ◽  
Torque Measurement ◽  
Spherical Joint ◽  
Structural Configuration ◽  
Robot Assisted ◽  
Bingham Model ◽  
New Type ◽  
Remote Controller ◽  
Er Fluid

Abstract This work presents a torque measurement method of 3-degree-of-freedom (3-DOF) haptic master featuring controllable electrorheological (ER) fluid. In order to reflect the sense of an organ for a surgeon, the ER haptic master which can generate the repulsive torque of an organ is utilized as a remote controller for a surgery robot. Since accurate representation of organ feeling is essential for the success of the robot-assisted surgery, it is indispensable to develop a proper torque measurement method of 3-DOF ER haptic master. After describing the structural configuration of the haptic master, the torque models of ER spherical joint are mathematically derived based on the Bingham model of ER fluid. A new type of haptic device which has pitching, rolling, and yawing motions is then designed and manufactured using a spherical joint mechanism. Subsequently, the field-dependent parameters of the Bingham model are identified and generating repulsive torque according to applied electric field is measured. In addition, in order to verify the effectiveness of the proposed torque model, a comparative work between simulated and measured torques is undertaken.

scholarly journals Torque Measurement Technology by Using a Magnetostrictive Ring and Multiple Magnets

Actuators ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 124
Author(s):  
Feng Xu ◽  
Vivek Kumar Dhimole ◽  
Chongdu Cho
Keyword(s):  
Kalman Filter ◽  
Measurement Method ◽  
Twist Angle ◽  
Angle Measurement ◽  
Measurement Technology ◽  
Torque Measurement ◽  
Dynamic Conditions ◽  
Complementary Filter ◽  
Applied Torque

A torque measurement method that combines the inverse magnetostrictive effect with twist angle measurement has been proposed in this paper. A Kalman filter and complementary filter are applied to significantly reduce the noises and errors in the proposed method. This new measurement block can detect the applied torque with an error of less than 1%. The proposed measurement method can be used in static and dynamic conditions.

Studies of Large-Range Dynamic and Static Motor Torque Tester

2012 ◽  
Vol 516-517 ◽  
pp. 1636-1642
Author(s):  
Chang Hong Ding ◽  
Hong Zuo Li ◽  
Ji Hang Cheng ◽  
Shuang Xu
Keyword(s):  
Rotational Speed ◽  
Measurement Method ◽  
Structural Features ◽  
Torque Measurement ◽  
Actual Measurement ◽  
Motor Torque ◽  
Technical Performance ◽  
Working Principle ◽  
Static Torque ◽  
Measurement Period

This paper discusses the composition, structural features, working principle, and technical performance of a kind of motor torque measurement system. This system adopts two kinds of torque measurement methods, dynamic torque measurement method and static torque measurement method, uses microprocessor to collect data including rotational speed of load motor and torque signals of to-be-tested motor, figures out the rotational speed and torque through software algorithm, as well as displays and output them. This system also makes actual measurement of a type of motor. The measurement period is short; the measurement precision is high; and the performance is stable.

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