TORQUE MEASURMENT

Torque Motion in which an entire object moves is called translation. Motion in which an object spins is called rotation. The point or line about which an object turns is its center of rotation. An object can rotate and translate.

Torque Lever arm length (m) t = r x F Torque (N.m) Force (N)

Torque Measurement The test machine measures torque and angle of the shaft. There are three sensors on the machine. Load cell measures force in tension and compression. Two encoders measure angle of two shafts. The torque is product of load value measured by load cell and radius and cos Ǿ. The angle Ǿ is difference of two angles measured by two encoders. The force is 10000 kg (100KN), Angle is from 0 to 90 ° The load increases from 0 to 100KN and back to 0 and angle from 0 to 90°. The cycle time is 12 sec.

Torque Measurement Sequence Connect Load cell and two encoder to data acquisition card Read signal from sensors Display data in table form and graph form (torque v/s angle ) on line. Storing data in database for future offline data retrieval and graphs. Offline graph to have facility for displaying data of multiple samples Store and retrieve, modify sample details. 2-3 reports All reports will have options for print-preview, print and export to other formats like HTML and PDF. Database backup and restore facility Login screen for access control to the system.

System Proposed NI BASED MEASURMENT SYSTEM flexible coupling Load torque sensor Driver Load flexible coupling NI BASED MEASURMENT SYSTEM

NI Based Measurement System + NI cRIO

NI Based Measurement System NI cRIO-9073 Integrated 266 MHz Real-Time Controller and 2M Gate FPGA Rugged, embedded control and monitoring system 266 MHz industrial real-time processor for control, data logging, and analysis 2M gate, 8-slot FPGA chassis for custom I/O timing, control, and processing 10/100BASE-T Ethernet port; RS232 serial port for connection to peripherals -20 to 55 °C operating temperature range; single 19 to 30 VDC power supply input

NI Based Measurement System 24-Bit Universal Analog Input 250 Vrms channel-to-channel isolation Built-in quarter, half, and full-bridge support Built-in voltage and current excitation Thermocouple, RTD, resistance, voltage, and current measurements CJC per channel for accurate thermocouple measurement 100 S/s/ch simultaneous inputs (50S/s/ch for Thermocouple)

NI Based Measurement System 8-Channel 24 V Logic, 100 µs, Sinking Digital Input Module 8-channel, 100 us digital input Hot-swappable operation -40 to 70 °C operating range 12 to 24 V logic, sinking digital inputs

NI Based Measurement System 8-Channel 24 V Logic, 100 µs, Sourcing Digital Output Module 8-channel, 100 µs digital output D-Sub or screw-terminal connector options 6 to 30 V range, sourcing digital output -40 to 70 °C operating range Hot-swappable operation

NI Based Measurement System COST NI cRIO-073 8-Slot, 2M Gate Compact RIO Integrated Chassis Controller 110,000.00 NI 9215 4-Channel, 100 kS/s, 16-bit, ±10 V Simultaneous Sampling Analog Input Module 40,000.00 NI 9421 8-Channel 24 V Logic, 100 µs, Sinking Digital Input Module 7,500.00 NI 9472 8-Channel 24 V Logic, 100 µs, Sourcing Digital Output Module   165,000.00 VI SW-TM Application Software development 200,000.00 365,000.00

NI Based Measurement System

NI Based Measurement System

NI Based Measurement System

NI Based Measurement System

NI Based Measurement System CONTACT VI AUTOMATION (P) LTD C/2, APNA GHAR HOUSING SOCIETY, SHANKARSHETH ROAD, PUNE 411042 PH: + 91 20 6400 2256 / 7 FAX: + 91 20 2645 1554 www.viapl.com kaustubh@viapl.com