Q:I would like to ask, under what circumstances do you need to use a pressure sensor? And under what circumstances do you need a pressure transmitter?

The pressure sensor does not mean stress or pressure.Usually called is not very standardized. Pressure transmitter is a kind of instrument that has the function of changing the size of pressure signal to remote transmissionThere is a pressure sensor in the pressure transmitter, such as the Ross Monte 3051 pressure transmitter or the differential pressure transmitter. There is a diffused silicon pressure sensor. The pressure sensor output signal through a tuning and according to the need of conversion, such as converted into standard 4-20mA current signal or 0-5V voltage signal or PF bus or HART have a follow-up to the remote communication equipment for subsequent "transmission" concept.At present, the industrial field for measuring pipeline and container process and so on non special type of solid, such as gas, vapour, liquid, semi liquid media usually use pressure transmitterUsed to measure a single solid or weighing strain, etc. mechanical pressure sensors follow the subsequent processing unit or display unit to achieve measurements.

Q:Careful not to pierce the pressure hole, the pressure sensor can continue to use?

No, you can't punch the pressure hole of the pressure transmitter with sharp things like screwdrivers! It will pierce the corrugated diaphragm, sensor lead to leakage of silicone oil directly damage the sensor. Suggest you buy a new one. Wuhan pine Electric is glad to help

Q:Characteristics of ceramic pressure sensors

Better electromagnetic resistance

Q:Is there a heat sensor on the bus? What's the function?

Show that the engine cooling water temperature = = good point, there is also the car inside the car outside temperature display

Q:I would like to know the principle of the simple pressure sensor (except the single chip microcomputer) and some main parameters.

Pressure sensors generally have capacitive and piezoresistive ones. Capacitance uses the change of capacitance between two pieces of metal to correspond to the pressure value, and the piezoresistive type uses the change of resistance value to correspond to the value of the pressure.

Q:Excuse me, the pressure sensor passes the signal to the monolithic integrated circuit, the monolithic integrated circuit produces the signal control, the alarm circuit's principle is what? Preferably with a circuit diagram.

Silent, you call the alarm circuit with a buzzer, you have to use the transistor to enlarge, or else can not drive, as for pressure sensors, first converted to 0-5V voltage signal, and then AD to the microcontroller. I don't know what you're going to do

Q:If you don't know, tell me about the working principle of the pressure sensor in general air compressor

Air compressor pressure sensor operating principle, that is, the general pressure sensor operating principle, as long as you Baidu pressure sensor operating principle, answer a lot

Q:The relation between the voltage signal collected by the pressure sensor and the measured pressure value

We use the pressure transmitter here, the output is the standard 4 ~ 20mA signal, 4mA corresponding to zero pressure, 20mA corresponding to the upper limit of measurement of transmitter (Ji Liangcheng), the middle is linear correspondence. Are generally current signals, there are voltage signals, generally 0 ~ 10V. The corresponding relation is identical to that of the current signal.

Q:Measure the weight with a pressure sensor. How will the pressure be converted to weight?

Under special circumstances, pressure equals gravity, P=G=Mg, G is constant, 10N, and M is mass5kg-50kg is equivalent to 50N-500N gravity, that is, pressure. Range is not going to get, it is estimated that upstairs brother said, select the maximum range of 150%, 0N-750N bar!

Q:The pressure sensor power is 24V, the current signal is 4-20MA, (the 2 wire pressure sensor as a negative I) on the instrument are set up, why in the connection time, to get a line receiving instrument display box power output is above 24V cathode, a cathode box above the receiving instrument display 4-24MA, then they are connected by a wire electrode, what is the principle, thank you, heroes pointing trouble!!!

What about loops?