E1529 Strain Multi-Channel Strain Measurement Product T Conway Taking the stress out of strain measurements. BR ID G E POW ER SHUNT CAL. R 12VOLT SYSTEM POW ER + - GND DATA I/F TO E1415A 72.93 182.2 BR ID G E POW ER SHUNT CAL. R 12 VOLT SYSTEM POW ER + - GND DATA I/F TO E 1415A B RID G E POW ER SHUNT CAL. R 12 VOLT SYSTEM POW ER + - GND DATA I/F TO E1415A BRIDGE POW ER SHUNT CAL. R 12 VOLT SYSTEM POW ER + - GND DATA I/F TO E1415A Agilent E1529A: Remote Strain Bridge Conditioning
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E1529 Strain Multi-Channel Strain Measurement Product T Conway Taking the stress out of strain measurements. Agilent E1529A: Remote Strain Bridge Conditioning.
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E1529 Strain Multi-Channel Strain Measurement Product T Conway
Taking the stress out of strain measurements.
B RIDGEP OW E R
S HUNTCA L. R
12 VOLTS YSTE MP OW E R+ - GND
DA TA I/FTO
E 1415A
b u s
b u s
b u s
b u s
b u s
b u s
b u s
b u s
b u sb u s
b u s
b u s
72.93
182.2
B RIDGEP OW E R
S HUNTCAL. R
12 V OLTS YS TE MP OW E R+ - GND
DATA I/FTO
E 1415A
B RIDGEP OW E R
S HUNTCAL. R
12 V OLTS YS TE MP OW E R+ - GND
DATA I/FTO
E 1415A
B RIDGEP OW E R
S HUNTCAL. R
12 V OLTS YS TE MP OW E R+ - GND
DATA I/FTO
E 1415A
Agilent E1529A: Remote Strain Bridge Conditioning
E1529 Strain Multi-Channel Strain Measurement Product T Conway
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E1529 Strain Multi-Channel Strain Measurement Product T Conway
E1529 Strain Multi-Channel Strain Measurement Product T Conway
• Old Way– SCP = 120 or 350
Ohms– Excitation Fixed– Assumed Fixed
– IR comp. difficult– CAL difficult– No Dynamic Output
• HP E1529A Way– Select 120, 350 or
Custom– 4 Excitations / 32
Chan.– Excitation Measured
– accurate IR comp.– *CAL, end to end
auto.– Live Dynamic Output
Benefits of Agilent E1529AImproved Performance and Functionality
Customer gets More Functionality!Customer has More Accuracy!Customer has More Uptime!
S400 E1529 March 2001 T Conway
E1422A/E1529A Programming
E1529 Strain Multi-Channel Strain Measurement Product T Conway
Extended Channel List for E1422AScan List: ROUT:SEQ:DEF (@10000:11631)
Algorithm Input Variable: I10915
First digit = channel data modifier (like E1413) 1 - EU reading to FIFO and CVT 2 - EU reading to CVT only 3 - EU reading to FIFO only 0 - throw away (dummy reading)
Second two digits = E1422A channel number for E1539A channel 0 or 1
Last two digits = E1529A channel number
E1529 Strain Multi-Channel Strain Measurement Product T Conway
FUNC:STR:Q350 (@10000:11731) EU - 1/4 bridge, autorange, GF=2 (defaults), and sets E1529 configuration switchesSTR:GFAC 2.2,(@10000:11731) Sets gage factor (GF) in strain EUSTR:EXC ON,(@10000:11731) Connects excitation supplyROUT:SEQ:DEF (@10000:11731) Defines scan list
MEAS:VOLT:EXC (@10000:11731) Measures Vex and sends it to strain EU..
E1529 Strain Multi-Channel Strain Measurement Product T Conway
Excitation Measurement Note
E1422A/E1529A measures it once and expects it to bestable. Competition measures excitation and bridge output on every scan. Since strain is proportional toVbridge/Vexc, and most strain measurement experts are accustomed to measuring both, this change can be a tough sale. A very stable excitation source power supply is required, or the Vexc measurement should be updated frequently.
E1529 Strain Multi-Channel Strain Measurement Product T Conway
Command Sequence (cont)
MEAS:STR:UNST? (@10000:11631) Measure unstrained bridge voltage and send it to EU & FIFODATA:FIFO:RESET Clear FIFO
OUTP:SHUN INT,(@10000:11631) Selects internal 50 Kohm shuntOUTP:SHUN ON,(@10000:11631) Mux’s shunt to each ch as scannedINIT DATA:FIFO? Read shunt cal results to verify connex and EU (3475 ue for 350 ohm GF = 2)OUTP:SHUN OFF,(@10000:11631) Disconnect shunt resistor
TRIG:COUN n (1 <= n <= 65535, or 0 | INF for continuous)INIT Start Strain acquisition
E1529 Strain Multi-Channel Strain Measurement Product T Conway
The *CAL Advantage
• End to end automatic cal is a big advantage over competition.
• *CAL results in superior system accuracy.• This can be a very important selling point
when considering Tech time and system down time for calibration - as important as cost/ch.