The measurement of diaphragmatic intelligence pressure sensor range is one times bigger than inductance type sensor, it can detect not only metallic target, and still can detect dielectric, mix like paper, glass, lumber plastic etc, can undertake detecting through wall or paper carapace even. Because human body is equivalent to electric conductor below low frequency, what because this also appeared,be used at the person is asp measure and guard against theft calls the police. When measuring component part meet an emergency, direct meet an emergency piece sticky stick on component part can, but if want to measure force, pressure, acceleration,wait for signal, answer to become these physical quantity change meet an emergency first, use strain next piece measure, compare when be being measured directly much a transition, the original that completes this kind of transition calls stretch original normally, accordingly, sensor of type of meet an emergency is mixed by stretch and sensitive original normally two parts form strain gauge. Stretch and sensitive original is the core component of sensor, requirement flexibility original is stretch store can tall, express to store for stretch material normally work of deformation and do not produce permanent metabolic ability. Pressure sensor has good machining and heat treatment property, have stronger compressive strength. Suffer temperature the impact is little wait for character, choosing stretch and sensitive original and route of strain gauge bridge correctly is the important way that raises sensor of type of meet an emergency: 1, measure limits light precision is tall, can measure force transducer 0. The force of 01--1000000N, precision can be achieved 0.
05%FS above; Pressure sensor can be measured 0.
The pressure of 1-1000000, precision can be achieved 0.
1%FS. 2, function is stable and reliable, service life is long, if say lever of heavy style machinery says, because the part such as lever, blade is mutual,attrition generation loss is mixed be out of shape, be about to maintain its precision for a long time is quite difficult, the electronic pump that uses resistance strain type to say heavy sensor is made, car judge, orbit judge wait, can long-term below harsh ambient conditions stability works. 3, frequency answers character wonderful. General resistance strain gauge answers pressure sensor time is 0.
01MS, semiconductor strain gauge can be achieved 0.
If 001MS can adopt the sensor of type of meet an emergency that measure makes by them to be able to measure a few conspicuous to go up even on stretch original the dynamic process of 100 thousand conspicuous. CNC Milling