Data Acquisition Channels

Channel Descriptions and Sampling Rates

Name Chan ID Sampling Rate (Hz) Max Duration (sec) Description
Strain (AI1) 0 3991 40 Strain arm
Strain Temperature (AI2) 1 3991 40 Temperature sensor on strain arm
AUX (AI3) 2 3991 40 Temperature sensor on strain arm
AE (HSAI1) 3 2000000 4 Raw AE signal after FIR filter
AUX (HSAI2) 4 2000000 0.25 Raw spare signal
AE RMS 5 1953 40 RMS of signal HSAI1 (FIR — RMS)
Spindle Encoder 6 4000 20 Spindle motor encoder
Spindle Velocity 7 4000 20 Spindle motor velocity (RPM)
Actuator Encoder 8 4000 20 Actuator encoder
Actuator Position 9 4000 20 Actuator position (radians)
AO1 Voltage (AO1) 10 291 40 Measured voltage from AO1
AO2 Voltage (AO2) 11 291 40 Measured voltage from AO2
AO3 Voltage (AO3) 12 291 40 Measured voltage from AO3
AO1 Current (AO1) 13 291 40 Measured current from AO1
AO2 Current (AO2) 14 291 40 Measured current from AO2
AO3 Current (AO3) 15 291 40 Measured current from AO3

Channel Color Coding

Each coaxial cable connected to the front of the vx7500 controller is color coded.

Color   Description
color_gray Gray Spare
color_wb White/Black Spare
color_green Green Strain Temperature (AI2)
color_red Red Strain Signal (AI1)
color_white White High Speed AE Signal (HSAI1)
color_orange Orange Analog Output (AO1)
color_violet Violet Analog Output (AO2)
color_yellow Yellow Analog Output (AO3)