Calibration device for hydraulic drive wide range force sensor
A technology of force sensor and calibration device, applied in the field of sensor calibration device, can solve the problems of discontinuous loading force, limitation of maximum loading force, etc., and achieve the effect of wide range
Inactive Publication Date: 2015-10-21
江苏出入境检验检疫局机电产品及车辆检测中心 +1
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Problems solved by technology
The disadvantage of using weight loading is that the loading force is discontinuous, and the disadvantage of using servo motor drive is that the maximum loading force is limited by the power of the servo motor
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[0026] The present invention will be further described below in conjunction with specific drawings and embodiments.
[0027] Such as figure 1 Shown: the hydraulically driven wide-range force sensor calibration device provided by the present invention includes:
[0028] Loading lever 1, spirit level 2, column 3, force loading mechanism 4, horizontal bearing block 51, measured force sensor 52, standard measurement force sensor 53, lifting mechanism 54, signal line 62 and force sensor signal display unit 61. Wherein the force loading mechanism 4 includes a hydraulic piston 41 , a piston cylinder support 42 , a hydraulic oil pipe 43 , a hydraulic pump 44 , and a loading rod 45 .
[0029] The column 3 is used to support the loading lever 1 . The loading lever 1 is horizontally placed on the column 3, and its middle part is connected with the top of the column 3 by a hinge, so it can be rotated, and with the rotation fulcrum 11 as the zero starting point, the scale values are sy...
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The invention provides a hydraulic driving wide-range force sensor calibration device which comprises a stand column, a loading lever, a gradienter, a force loading mechanism, a lifting mechanism, a tested force sensor, a standard metering sensor, a horizontal bearing block and a force sensor signal displaying unit, wherein the loading lever is transversely arranged on the stand column, the middle of the loading lever is connected with the top of the stand column in a rotary mode, scale marks are symmetrically arranged on the two sides of the loading lever with the rotating pivot as the zero point, the gradienter is fixed on the loading lever, the force loading mechanism is arranged on one side of the loading lever to provide upper acting force for the side of the loading lever, the lifting mechanism is arranged on the other side of the loading lever, the tested force sensor and the standard metering sensor are installed on the lifting mechanism and are connected in series, the bottom of the horizontal bearing block is in contact with the one, located on the upper portion, of the tested force sensor and the standard metering sensor which are connected in series, the top of the horizontal bearing block is in contact with the other side of the loading lever, and the force sensor signal displaying unit is electrically connected with the tested force sensor and the standard metering sensor. The hydraulic driving wide-range force sensor calibration device can achieve wide-range calibration of the force sensor and has the advantages of being wide in calibration range, high in precision and easy to adjust.
Description
technical field [0001] The invention relates to a calibration instrument, in particular to a sensor calibration device. Background technique [0002] A force sensor is a sensor that converts mechanical quantities into electrical signals such as voltage and current. The force sensor is the most commonly used and extremely important type of sensor, and it is widely used in many fields such as industry, national defense, aerospace, and medicine. Sensor calibration is an important guarantee for testing sensor performance, and only sensors calibrated by sensor calibration devices can be used effectively. At present, the calibration device of the force sensor is mainly loaded by weights, or driven by a servo motor to load the force sensor. The disadvantage of using weight loading is that the loading force is discontinuous, and the disadvantage of using servo motor drive is that the maximum loading force is limited by the power of the servo motor. [0003] With the widespread us...
Claims
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IPC IPC(8): G01L25/00
Inventor 过峰俞建峰赵介军
Owner 江苏出入境检验检疫局机电产品及车辆检测中心