Linking Strain Measurements - HP E1313A Manual

Supplying a Fixed
Reference Temperature
Linking Strain
Measurements
78 Using the HP E1313/E1413
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The same command could set channel 12 to measure a 5K thermistor mounted
on a remote reference block. See "Reference Temperature Sensing with the
HP E1313" on page 40 or "Reference Temperature Sensing with the
HP E1413" on page 41 for connections.
The
[SENse:]REFerence:TEMPerature <
immediately stores the set temperature of a controlled temperature reference
junction panel in the Reference Temperature Register. The value is applied
to all subsequent thermocouple channel measurements until another
reference temperature value is specified or measured.
To specify the temperature of a controlled temperature reference panel:
SENS:REF:TEMP 50
Now begin scan to measure thermocouples.
Strain measurements usually employ a Strain Completion and Excitation SCP
(HP E1506 and HP E1507). To link channels to strain EU conversions send the
[SENSe:]FUNCtion:STRain:<
•
< bridge_type > is not a parameter, but is part of the command syntax.
The following table relates the command syntax to bridge type. See
the HP E1506/E1507 SCP User's Manual for bridge schematics and
field wiring information.
Command
:FBENding
:FBPoisson
:FPOisson
:HBENding
:HPOisson
[:QUARter]
•
The ch_list parameter specifies which sense SCP channel(s) to
< >
link to the temperature EU conversion.
channels on the Strain Bridge Completion SCP.
•
The optional < range
range. When not specified or set to zero, the module uses autorange.
To link channels 23 through 30 to the quarter bridge strain EU conversion:
SENS:FUNC:STR:QUAR (@123:130)
degrees_c
>
Reference temp = 50 °C
bridge_type > [< range >,](@<
Bridge Type
Full Bending Bridge
Full Bending Poisson Bridge
Full Poisson Bridge
Half Bending Bridge
Half Poisson Bridge
Quarter Bridge (default)
ch_list
<
> parameter can be used to choose a fixed A/D
Uses autorange.
command
ch_list >) command.
does not specify
>
Chapter 3