Torque V1.4.90
Sofia Gilcrease
The accuracies of the sensor and the indicator must be added together. Models 7i and 5i indicators have accuracy values of 0.1% FS, while the Model 3i is rated at 0.2% FS. Using the example of a Series R50 torque sensor with Model 3i indicator, add 0.35% to 0.2%, which equals 0.55%. In a specific example for the Model MR50-12, the accuracy becomes 0.55% x 135 Ncm = 0.7425 Ncm.
Rundown fixtures contain an internal spring which dampens the rate of increase in torque when a power tool is used, thereby contributing to a more accurate torque measurement. Two fixtures are offered, with different internal spring rates, to address a wide range of applications. Select the AC1066-1 to simulate a soft joint with gradual torque buildup, or AC1066-2 to simulate a hard joint with faster torque buildup. Either fixture is suitable for the full range of torque up to 100 lbFin (11.5 Nm).
The steering servo in Maxx is the same size as the steering servo used on the giant X-Maxx. With 285 oz-in of torque, it has strength and power in reserve for fast response and incredible steering authority.
A rectangular loop of wire of size 4cm10cm carries a steady current of 2A. A straight long wire carrying 5A current is kept near the loop as shown. If the loop and the wire are coplanar, find
(i) the torque acting on the loop and
(ii) the magnitude and direction of the force on the loop due to the current carrying wire.
4 Will interfere with front mount oil filter. Rear or remote mount oil filter must be utilized.
6 Intermittent torque of up to 750 lb.-ft. at the countershaft is permitted for 5 minutes of each 15 minute PTO duty cycle.
The objectives of this study were as follows: (1) to evaluate changes of alveolar bone during mandibular incisor retraction; (2) to compare the changes of alveolar bone between tip movement and torque movement after mandibular incisor retraction; (3) to estimate and compare the B/T ratio among patients with different vertical facial types.
According to cephalometric evaluation, these patients were divided into 2 groups, including Tip group (n=57) and Torque group (n=46). Refer to the grouping method of Vardimon, in the Tip group, the apex of the mandibular incisor moved anteriorly on the posttreatment cephalometric radiograph relative to its pretreatment position, while in the torque group, the apex of the mandibular incisor moved posteriorly posttreatment[7]. Mandibular plane angle (the angle between the anterior cranial base and the mandibular plane) was measured to divide patients into high-angle (n=33), average-angle (n=38) and low-angle (n=32) groups. The mandibular plane angle of average-angle patients was in the range of 325 degrees[18, 19].
Abstract:In the case of adjustable drives systems with an induction motor (IM), a harmonic regime is manifested, whose knowledge and analysis are always necessary. However, most studies are focused on specific drive systems, the results of these works being valid only for drive systems of the same type. The objective of the present paper was to determine the harmonics consequences not only on the technical characteristics of the IM but also on the power supply as well as on the mechanical drive system. Thus, by initiating a methodology for estimating the consequences of each voltage harmonic separately, the aim was to substantiate a generally applicable method, which allows the evaluation, for any application, of the overall effects of the harmonics. The main feature of the method used in this paper was the consideration of the presence of voltage harmonics in the stator voltage of the IM, of certain frequencies and with certain levels, and the determination of all the electrical and mechanical consequences on the model of the drive system. It has been found that the harmonics of the IM affects the power quality (PQ) of the power supply, having significant influences also on the mechanical part of the drive system.Keywords: induction motor; harmonics effects; drive systems; electromagnetic torque; power factor; efficiency
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