1. TORQUE MEASURMENT

2. 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.

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

4. 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 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.

5. 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.

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

7. NI Based Measurement System+
NI cRIO

8. 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

9. 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)

10. 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

11. 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

12. 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

13. NI Based Measurement System

14. NI Based Measurement System

15. NI Based Measurement System

16. NI Based Measurement System

17. NI Based Measurement System
CONTACT
VI AUTOMATION (P) LTD
C/2, APNA GHAR HOUSING SOCIETY,
SHANKARSHETH ROAD, PUNE
PH: / 7
FAX: