[Halld-tracking-hw] Temperature sensor

[Curtis A. Meyer]

Hi Beni,

    we anticipate several of these in the final chamber which was why we 
were
looking at the multi channel controller. If we put them all into allan 
bradly
modules, then we do not need to buy the more expensive controller at our
end.

     Perhaps we can add some short discussion of this to the tracking 
meeting
next week in conjunction to the gas system discussion.


    curtis

On 2/26/10 10:30 AM, Beni Zihlmann wrote:
> Hi Yves,
> what you propose looks ok to me. The only questions I have is what is
> the dimension
> of the sensor and where you want to mount it?
> The controller you propose is fine and you can use this for stand alone
> tests and measurements.
> In the final installation at Jlab I strongly recommend to connect the
> sensor directly to an allan bradly
> module and not use the controller.
>
> cheers,
> Beni
>
>
>    
>> Hi,
>>
>> I found some things on the omega site:
>>
>> The air temperature sensor:
>> http://www.omega.com/pptst/RTD-805_RTD-806.html
>>
>> The controller:
>> http://www.omega.com/ppt/pptsc.asp?ref=CNI_SERIES
>>
>> I like this but the controller has only one input channel (if you want
>> rs232), so better use
>>
>> a thermocouple:
>> http://www.omega.com/ppt/pptsc.asp?ref=IRCO_CHAL_P13R_P10R
>>
>> With a six channel controller:
>> http://www.omega.com/guides/Results.html
>>
>> What do you think?
>>
>> Best regards,
>>      Yves
>>
>>
>>
>>
>>                            /--------------------------------
>>                           /   Yves Van Haarlem
>>         _--~~--_         /
>>       /~/_|  |_\~\      /      Carnegie Mellon University
>>      |____________|    /        Department of Physics
>>      |[][][][][][]|:= /          Wean Hall room 8404
>>    __| __         |__ \            Pittsburgh, PA 15213
>>   |  ||. |   ==   |  | \           USA
>> (|  ||__|   ==   |  |) \
>>   |  |[] []  ==   |  |   \           Tel.:   +1 412 268-6949
>>   |  |____________|  |    \                  +1 412 641-9252
>>   /__\            /__\     \          Fax.: +1 412 681-0648
>>    ~~              ~~       \-----------------------------------
>>
>> On Tue, 23 Feb 2010, Elliott Wolin wrote:
>>
>>      
>>> Hi,
>>>
>>> The PLC will support just about any type of termperature sensor.
>>>
>>> There are two main options:
>>>
>>> 1.  use a sensor that connects to some A-B module and purchase the
>>> module. Usually we use signal conditioners between the transducer and
>>> module to ensure ground isolation.  The module might contain an ADC
>>> or 4-20 mA input.
>>>
>>> 2.  use a temperature monitor/controller of some sort, then talk to
>>> the PLC via Ethernet/IP or RS232 or some other high-level protocol.
>>> We are doing this in the coil test, as it was the cheapest and most
>>> convenient option despite having to learn how to talk to the cryo
>>> termperature monitor via RS232.
>>>
>>> There may be other options, depending on the temperature range and
>>> the type of sensor.
>>>
>>> Let me know what you are thinking of purchasing before you purchase
>>> it.  Note that I only care about the final experiment control system,
>>> not what you do at your lab.
>>>
>>>                  Sincerely,
>>>                      Elliott
>>>
>>>
>>> ================================================================================
>>>
>>>
>>>
>>> Those raised in a morally relative or neutral environment will hold
>>>              no truths to be self-evident.
>>>
>>> Elliott Wolin
>>> Staff Physicist, Jefferson Lab
>>> 12000 Jefferson Ave
>>> Suite 8 MS 12A1
>>> Newport News, VA 23606
>>> 757-269-7365
>>>
>>> ================================================================================
>>>
>>>
>>>
>>>
>>> Beni Zihlmann wrote:
>>>        
>>>> Hi Yves,
>>>> I include Elliott in this mail because I would recommend to select a
>>>> temperature sensor that is
>>>> supported by our Allen Bradly system we are going to use.
>>>>
>>>> cheers,
>>>> Beni
>>>>          
>>>>> Hi,
>>>>>
>>>>> As you might remember from last collaboration meeting, we would
>>>>> like to do some temperature dependent measurements with the CDC
>>>>> prototype. One important requirement is to be able to measure the
>>>>> temperature inside the gas volume of the CDC. We want to buy some
>>>>> temperature sensors in order to do this. Did somebody thought about
>>>>> what kind we will use in the Hall-D and if not could you give me
>>>>> some hints what to use?
>>>>>
>>>>> Thank you.
>>>>>
>>>>> Cheers,
>>>>>      Yves
>>>>>
>>>>>
>>>>>                            /--------------------------------
>>>>>                           /   Yves Van Haarlem
>>>>>         _--~~--_         /
>>>>>       /~/_|  |_\~\      /      Carnegie Mellon University
>>>>>      |____________|    /        Department of Physics
>>>>>      |[][][][][][]|:= /          Wean Hall room 8404
>>>>>    __| __         |__ \            Pittsburgh, PA 15213
>>>>>   |  ||. |   ==   |  | \           USA
>>>>> (|  ||__|   ==   |  |) \
>>>>>   |  |[] []  ==   |  |   \           Tel.:   +1 412 268-6949
>>>>>   |  |____________|  |    \                  +1 412 641-9252
>>>>>   /__\            /__\     \          Fax.: +1 412 681-0648
>>>>>    ~~              ~~       \-----------------------------------
>>>>>            
>>>>
>>>>          
>>>        
>
>    


-- 
Prof. Curtis A. Meyer		Department of Physics
Phone:	(412) 268-2745		Carnegie Mellon University
Fax:	(412) 681-0648		Pittsburgh PA 15213-3890
cmeyer at ernest.phys.cmu.edu	http://www.curtismeyer.com/