I am using Eagle to design a PCB that includes an analog pressure sensor. However, I can't seem to find if there is any standard symbol for the device. There isn't anything on the datasheet. I began to browse the web without much luck. Some block diagrams represented them as a simple circle with an "X" inside. Some schematics showed them as a circle or a circle with an arrow inside.
I also looked to see if there was a symbol for a generic transducer. Results included what I thought was the symbol for a piezo oscillator, as well as more circles with symbols inside.
Is there a standard symbol? If not, what is my best bet? Should I draw a circle with an arrow or letter "P" or something? Would it be better off to draw a block and label the appropriate pins, like some ICs?