Research And Exploit The Bite Force Measuring Instrument Which Is Based On The Quartz Crystal Piezoelectricity Sensor And Labview

The clinical research shows that the bite force is the one of important sign of the chew muscle and the jaw system. It will be help us to know the function condition of jaw system and reference for the diagnosis of various diseases by measuring the bite force. The disease in jaw surface will be drop the bite force; the bite force in the patient who disease in temporal jaw joint descent obviously than normal person; serious mistake in join deformity, the acute damage in the area arthritis can also drop the bite force evidently; compare to normal children, Wenneberg fund that the bite force lower and the duration of the biggest bite force shorter in the children who fall ill of the chronic arthritis; the bite force also be used in appraise of the recovery condition in surgical operation,disorder in jaw arthritis and the serious bone offset in bite lopsided etc.Some materials, it will be produce polarization phenomenon inside when suffered some force in certain direction, at the same time, it produce opposite electric charge in two of the surface; and resume to the station of on-electrification when removed the outside force; change the direction of the outside force, the polarity of the electric charge also be changed, this kind of phenomenon is called as"piezoelectric effect". Using the piezoelectric effect, quartz crystal piezoelectricity sensor realizes the conversion of the energy. Quartz crystal has the characteristic of great piezoelectricity constant, wide linear scope and high inherent vibration frequency, good low-frequency, temperature,humidity and time stability. LabVIEW is the result that technology of the modern instrument and computer technology combine together. It gives full play to data operation, data storing and data processing of the computer. LabVIEW has offered faster, simpler, more convenient, more flexible, high-efficient technological choice while developing the system of testing to engineers and technicians. The test system developed based on LabVIEW has high performance advantage, can be maintained and expanded easily, and can fully utilize the modern network. The concept of LabVIEW has passed the push and support of a lot of known enterprises in world since putting forward for the first time by U.S.A. NI Company in 1984. LabVIEW has well-organized systematic alliances, has set up complete systematic norm. The LabVIEW instrument system is gradually becoming the mainstream of the third generation of test system.Under the existing technical condition, from the angle of actual application, this research developed a set of measuring instrument which based on LabVIEW...