Differential type horizontal micro-force measuring device and measuring method thereof

Abstract

The invention discloses a differential type horizontal micro-force measuring device and a measuring method thereof. The measuring device is characterized in that: a vertical first-stage lever is used as a central rod; a pair of second-stage levers are symmetrically and respectively arranged at both sides of the first-stage lever in a vertical plane, and are connected with the first-stage lever through a first-stage transition rod at one side, respectively; and one pair of the second-stage levers are also connected with a third-stage lever at one side through a second-stage transition rod, respectively. The differential type horizontal micro-force measuring device and the measuring method thereof can be used for providing support for a force measuring system of micro-force values.

Description

technical field [0001] The invention belongs to the technical field of measurement, in particular to a micro-force measuring device. Background technique [0002] With the development of modern science and technology and the emergence of various new materials and new products, there are more and more occasions that require micro force measurement. But the measurement system of tiny force value has not been established yet, so far, 10 -5 The traceable measurement method for micro- and nano-newton ultra-small force values ​​below Newton has not been established yet, so it is particularly important to develop an easy-to-use, low-cost micro-force value measuring and testing instrument to measure micro-force in various occasions. At present, micro-force measurement mainly includes piezoresistive, capacitive, piezoelectric, etc., piezoresistive force measurement is a force measurement device prepared by using the piezoresistive effect of piezoresistive materials, but this method ...

AI Technical Summary

Problems solved by technology

But the measurement system of tiny force value has not been established yet, so far, 10 -5 A traceable measurement method for micro- and nano-newton ultra-small force values ​​below Newton has not yet been established, so it is particularly important to develop an easy-to-use, low-cost micro-force value measuring and testing instrument to measure micro-force in various occasions

At present, micro-force measurement mainly includes piezoresistive, capacitive, piezoelectric, etc., piezoresistive force measurement is a force measurement device prepared by using the piezoresistive effect of piezoresistive materials, but this method is easily affected by temperature; The piezoelectric microcantilever type is easy to be interfered by the electromagnetic field, and the force measurement cost of the piezoelectric microcantilever is low, but the operation is inconvenient and the measuring range is small

[0003] At present, the flexible hinge mechanism has been widely used in the fields of precision measurement and calibration, but there is still a lack of comprehensive consideration and research on the influence of the deformation of the flexible hinge, the position of the center of gravity of the lever, and the change of temperature on the accuracy of measurement and calibration. Structural design influenced by two factors of gravity and temperature, and in order to obtain higher accuracy when calibrating or measuring micro-force, it is necessary to solve the influence of the above aspects on the calibration or measurement of micro-force, the influence of gravity and temperature The impact may be far greater than the maximum range of micro-force calibration or measurement, and have a fatal impact on micro-force calibration or measurement

Images