thermocouple circuit to control a dc device?
104828
You need two blocks in your circuit. \n\nFirst you get a thermocouple signal conditioner. There are two types analog output and digital output. If you want to get fancy use a microprocessor use a digital, otherwise go with the analog.\n\nNext you take the output signal and turn something on. \nIf the output is analog and you want to go simple you need a comparator which you add a resistor network with a trimpot to adjust the setpoint and the other input is the temp signal which then turns the load on and off.  For both types the outputs may need to drive a relay to control more wattage load since you are probably using it to control the temp.\n\nIf you are interfacing it with a microcontroller you can use a chip like this:\nhttp://pdfserv.maxim-ic.com/en/ds/MAX6674.pdf\nIt will just give you a digital temp and you can trigger the load with another output and even add a PID loop to control the temp in a smoother nicer way.\n\nIf you want the analog version try something like:\nhttp://pdfserv.maxim-ic.com/en/ds/MAX1464.pdf
344568
http://www.discovercircuits.com/list.htm
824800
You can use an integrated circuit, like LTC6906 from Linear Technology which goes up to 1MHz at 2.25 - 5VDC supply,\nsee:  http://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1010,C1096,P9790,D6998\nAlternative: MAX5094A by Maxim,  see:  http://www.maxim-ic.com/quick_view2.cfm/qv_pk/5017\nI didn't have the time to check the output power, but if it's not enough, a simple emitter stage transistor will do.
85778
EMF200 Gauss Meter \nRemote Infrared (IR) Thermometer \nmotion detector
1184412
Yes, in fact that has been done throught the concept of "Thermo-coupling" but again this method is economically infeasible, because the current generated in the process is in nano amperes.\nor in very small qty.
276785
You might try looking at Deltronix RPS II switch.  I've bought one in the past.  It is like having a wall switch that you control by calling it over the telephone.  I believe the URL is http://www.remotepowerswitch.com
332623
Maybe you could use its electrical resistance. But it wouldn't be easy as I suspect the temp coeff of the resitance is small.
673504
Choosing a proper thermocouple type for your application depends primarily on the temperature range in which its use is intended. The most widely used and available thermocouples are types "K "and "J", however there are several other types that you should consider.\n\nTo determine which thermocouple type best suits your application's temperature range, refer to the individual data pages for each thermocouple type (J, K, T, E, R or S). These pages include a temperature range and accuracy graph you can use for comparison with your measurement requirements.
531737
I know that APC, the company that manufactures battery back-ups, has the ability to monitor temperature and upload the data to a PC.  They may be able to do current as well.\n\nOnset is another company that provides a number of data loggers.  They have loggers that will record temperature, humidity and take the input of an external sensor as well.  They also have the ability to upload to a PC.
1183365
A thermocouple can be a temperature sensor or it can be a means of converting heat energy to electricity. Many deep space probes use thermocouples (a series of thermocouples) powered by radioisotope decay for electricity production.
171524
design a circuit that can remotely take the temperature of humans and interface it with the H5N1 detection kit
800315
visit\nhttp://www.allaboutcircuits.com/vol_3/chpt_7/5.html
130984
get an uninterruptible power supply...
787963
Actually no. I think there is about 5 volts DC. I guess the amount of power available depends on the computer, but it's probably very small. Maybe less that 500ma.
391108
Are you mixing up a thermocouple for a thermal-switch. In all the applications mentioned above a thermal switch is used. The thermocouple is a lab device which is used to measure relative temperatures. A thermal-switch is an absolute device which either opens or closes at a given temperature.\n\nA thermal-couple is used to measure continuously the temperature while performing a experiment. It is usually attached to a component or surface being tested.\nThe results are compared to a controlled known temperature surface.\nUsually when testing to meet UL underwriters lab testing.
908047
Yeah is it ACPI compatible? That might be why it dosen't turn off in hibernation. Check www.acpi.info for more information.\n\nIf they are not then you will have to cut the current to them manually.
471894
a drawbridge or a circuit??