Pressure sensor and temperature sensor compare commonly used car pressure sensor to have transformer of the capacitance type, type that control block, differential in the application of automobile manufacturing industry type of type, surface acoustic wave. Capacitance type pressure sensor basically is used at detecting negative pressure, hydraulic pressure, baric, measure limits to be 20kPa ～ 100kPa, its characteristic is an input energy is high, trends answers character the function that good; of good, environmental suitability controls block type pressure sensor suffers temperature the impact is bigger, need sets temperature additionally to compensate circuit, but suit to produce; differential transformer at large quantities of quantities type pressure sensor has bigger output, easily digital output, but pressure sensor of type of surface acoustic wave of poor; of interference rejection sex has volume small, quality light, power comsumption low, dependability tall, sensitivity tall, resolution the characteristic such as output of tall, number, use at pressure of car inlet valve to detect, work steadily. The line circles resistor type and heat occasionally resistor type 3 kinds of main types. This 3 sort sensor has a characteristic each, its apply a circumstance to also be distinguished somewhat. Sensitivity of sensor of temperature of thermal resistor type it is tall, better to answer character, but linear difference, get used to temperature inferior. Among them, measure lukewarm limits general-purposely to be - 50 ℃ ～ 30 ℃ , precision is 1. 5% , answer time to be 10ms; high temperature model for 600 ℃ ～ 1000 ℃ , precision is 5% , the precision that answers time to circle sensor of resistor type temperature for 10ms; line is tall, but answer characteristic poor; the precision of sensor of temperature of type of heat idol resistor is tall, measure temperature range wide, but need cooperates amplifier and Leng Duan processing to be used together. Other practical already the product that turn has sensor of ferrite type temperature (measure lukewarm limits to be - 40 ℃ ～ 120 ℃ , precision is 2.
0%) , metal or sensor of temperature of semiconductor film air (measure lukewarm limits to be - 40 ℃ ～ 150 ℃ , precision is 2.
0% , 5% , answer time to make an appointment with 20ms) to wait. CNC Milling
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