Passive Electromagnetic Dampers for Micro Torque Calibration Devices
An electromagnetic damper and calibration device technology, which is applied to measurement devices, instruments, magnetic springs, etc., can solve the problems of high cost and complex structure, and achieve the effects of low cost, simple structure and high stability.
Active Publication Date: 2019-05-21
SHANGHAI MARINE EQUIP RES INST
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Electromagnetic dampers can be divided into active and passive types according to different control methods. Active electromagnetic dampers can control all working conditions through the feedback control of electromagnetic dampers by microcomputers. The structure is complex and the cost is high.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0011] Such as figure 1 Shown is a schematic diagram of the principle of the micro-torque calibration device of the present invention. The standard torque beam 1 is fixed on the balance support rod 9, and the bottom of the balance support rod 9 is fixed on the device base. When there is no weight, the standard torque beam 1 remains horizontal and the electromagnetic torque The bottom of the device 8 is fixedly connected with the device base, and the torque output end of the electromagnetic torque device 8 is installed on one side beam arm of the standard torque beam 1. If weights of different weights are placed on the weight plates 5 and 7 at both ends of the standard torque beam 1, the standard torque beam 1 will deflect, and the high-precision displacement sensor 4 is facing the standard torque beam 1, the position caused by the deflection of the standard torque beam The change is detected by the high-precision displacement sensor 4 and converted into an electrical signal. The...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a passive electromagnetic damper for a micro torque calibration device. The passive electromagnetic damper is installed on the other beam arm of a standard torque beam and consists of a stationary coil and a movable coil, wherein the stationary coil is fixedly connected with the movable coil, the movable coil is connected with the beam arm of the standard torque beam, a coil in the stationary coil produces relative motion in a magnetic circuit of the movable coil, a coil electric signal is sent to a measurement circuit for amplification, the amplified electric signal and an output signal of a displacement sensor jointly act on an electromagnetic torquer, and the electromagnetic torquer is controlled to make the balance of the standard torque beam quickly restored.Different from an active electromagnetic damper, a power supply is not needed, displacement sensors and other external control systems are not needed, the passive electromagnetic damper has the advantages of being simple in structure, low in cost, safe, reliable and high in stability, can play the quick vibration inhibiting and stability improving effects on the device by combining with the measurement circuit and thus meets the measurement requirements for high stability and quick reading of the micro torque calibration device.
Description
Technical field [0001] The invention relates to a damper, in particular to a passive electromagnetic damper used in a small torque calibration device. Background technique [0002] The micro-torque calibration device has real-time calibration and automatic measurement functions. Real-time calibration is to calibrate the electromagnetic force generated by the electromagnetic torque device, the executive part of the device, by loading standard weights, and establish the only corresponding relationship between the standard torque and the electromagnetic force, based on this , Use electromagnetic force to automatically measure the tiny torque generated by the measured object. The impact caused by the loading and unloading of weights during calibration, the small torque measurement of the tested part, and the sudden current change at the moment of power failure will cause the device to oscillate, which will affect the stability of the device and the measurement accuracy of the system....
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00G01L3/00F16F6/00
CPCF16F6/00G01L3/00G01M13/00
Inventor 齐红丽李涛曾志龙陈奕吴承勇
Owner SHANGHAI MARINE EQUIP RES INST