Measuring instrument for detecting angle of cold-bent pipe

The utility model relates to a measuring instrument for detecting angles of cold-bent pipes. The measuring instrument consists of two angle measurement modules and a receiving and displaying module, wherein a tilt angle sensor module is mainly composed of a U2 and a U3; the U2 is an RS232 serial port communication module and is preferably an MAX3232, and the U3 is a wireless sensor network module and is preferably an XBEEPRO; a capacitor C3 is connected between a 1st pin and a 3rd pin of the U2 , the 2nd pin is grounded through a capacitor C6, a capacitor C5 is connected between a 4th pin and a 5th pin, a 6th pin is grounded through a capacitor C7, a 16th pin is grounded through a capacitor C8, and a 15th pin is grounded; a 7th pin is connected with a TXD232 of a signal receiving and processing circuit U1 of the receiving and displaying module, an 8th pin is connected with an RXD232 of the signal receiving and processing circuit U1 of the receiving and displaying module, a 9th pin is connected with an A3 pin