Virgilio Mattoli July/20/04 CRIMpag 1/5 Experimental Setup for Gauge Measurement Experimental Setup Overview PC - Laptop Microcontroller Module Amp Power Amp Amp Displacement Actuator Displacement Transductor Agilent 34401A – Precision Multimeter 4-Wire resistance measurement Force Transducer Module (with PreAmp) RS232 Serial Comm RS232 Serial Comm Ext.Trigger Sensor Displacement Module
Virgilio Mattoli July/20/04 CRIMpag 2/5 Experimental Setup Microcontroller Module Microcontroller Module (1/2) PIC18F nf 27nf 10K 10 MHz 5V RX TX 820 Ω Ch 2 Ch 1 Ch MAX 232 Vcc GND T2in R2out C1+ V+ C1- C2+ C2- V- T2out R2in TTL RS RS 232 In RS 232 Out 1f1f 1f1f 1f1f 1f1f 1f1f 5V Trig OUT An0 Input An1 Input An2 Input PWM OUT Serial RS232 DB9 Connector (Female) PC-TX PC-RXPC-GND RS 232 Out RS 232 In
Microcontroller Module (2/2) Virgilio Mattoli July/20/04 CRIMpag 3/5 Experimental Setup Microcontroller Module Connection with Displacement Module Input for Opto Isolated Power Amp _ + X 10 LM6152 2K 18K 5V An1 Input 200nf 4,7K ConctN V _ + X5 LM6152 2,2K 12K An1 Input 200nf 4,7K ConctN2 Connection with Ext. Trig. Of Agilent 34401A TTL Output for trigger synchronization Trig OUT ConctN3 1 2 PWM OUT ConctN4 1 2 Connection with Force Transducer Module Connection with Displacement Module Displacement Transducer Conditioning
Displacement Module Virgilio Mattoli July/20/04 CRIMpag 4/5 Experimental Setup Displacement Module Optoisolator 6N To connect to ConctN4 1 2 PWM signal 1K Displacement Transducer To connect to ConctN2 15V (Isolated from Micro Module) _ + LM675 1 μf 2K GND (Isolated from Micro Module) 12V (Isolated from Micro Module) 300R 0,1 μf To the COIL (Inductive Load) 1R – Power (> 5W) - 15V (Isolated from Micro Module) - 15V (Isolated …) 0,22 μf 1R 100 K GND (Isolated …) Jumper for safety start up Open after PWM activation!!! GND (Isolated …) Potentiometer for offset regulation
Force Transducer Module Virgilio Mattoli July/20/04 CRIMpag 5/5 Experimental Setup Force Transducer Module Force Force Transducer To connect to ConctN1 1 2 Signal Conditioner GM by Sensortech +Exc - Exc +Signal - Signal - Output +Output L2NO L2NC L2Com L1NC L1NO L1Com Chassis AC Lo AC Hi AC 60Hz