Unit of Measure - resistance and conductance

[sdeaton75]

We have an enumeration for a uomType of resistance, conductance and radioactivity, but there are no units specified for these.

We need to add the following at least:

resistance - ohm
conductance - siemens per metre (S/m), micro siemen per cm μS/cm
radioactivity - count/second (counts/s)

We need an enumeration for pressure per time (stressRate). An example is MPa/sec. This is used in something like the Unconfined Compression test for rock.

[dponti]

The Energistics units library DIGGS uses has the following unit symbols for pressure/time:

atm/h | standard atmosphere per hour
bar/h |   bar per hour
kPa/h |   kilopascal per hour
kPa/min |   kilopascal per min
MPa/h |   megapascal per hour
Pa/h |   pascal per hour
Pa/s |   pascal per second
psi/h  psi per hour
psi/min |  psi per minute

We can extend the measure types to include units that are not included in the Energistics library. Besides megaPascal per second, what other units are in common usage that we need to add

[dponti]

The Energistics units library includes the following for electrical resistance:

cohm   | centiohm
dohm |  deciohm
Eohm |   exaohm
fohm |   femtoohm
Gohm |   gigaohm
kohm |   kilohm
Mohm |   milliohm
mohm |   milliohm
nohm |   nanoohm
ohm |   ohm
pohm |   picoohm
Tohm |   |teraohm
uohm |   microohm

ohm exists in the current library. Do you need any others?

For conductance, the following are available:

cS |  centisiemens

dS |   decisiemens
ES |  exasiemens
fS |  femtosiemens
GS | gigasiemens
kS |   kilosiemens
MS |   millisiemens
mS |   |millisiemens
nS |   nanosiemens
pS |   picosiemens
S |  siemens
TS |  terasiemens
uS |  microsiemens

The unit types you specified, microsiemens per meter, etc. are units of electric conductivity, of which the following are available:
S/m |   kilosiemens per metre
mS/cm | millisiemens per centimetre
mS/m |   millisiemens per metre
S/m | siemens per metre

We can add uS/cm. Any others needed?

For radioactivity, the Energistics library does not include counts per second, which is instrument dependent (they do have gAPI for API gamma ray counts) If cps is commonly reported, we can add it. Any others?

With all of the above, I'll check to make sure that the quantity class types are included in the AllUnits type so that they are available for the uom property for measurement properties.