How does one convert a temperture to frequency (CPS) is this

How does one convert a temperture to frequency (CPS) is this possible TIA
Is this possible if so what is the formula it's all emf isn't?

TIA

 

[MikeM]

mightmeak=-@hhmmy.nope.com wrote:

How does one convert a temperture to frequency (CPS) is this possible TIA
Is this possible if so what is the formula it's all emf isn't?

TIA

Thermistor determining the freq of a 555 timer running astable???

What temperature range?

What frequency range?

What voltage do you want it run on?

????

 

[jtech]

<mightmeak=-@hhmmy.nope.com> wrote in message
news:Ezm8c.52465$zP2.36398@bignews5.bellsouth.net...

How does one convert a temperture to frequency (CPS) is this possible TIA
Is this possible if so what is the formula it's all emf isn't?

TIA


Thermister/divider output to a vco( voltage controlled oscilator )

basically.

 

[Jim Thompson]

On Thu, 25 Mar 2004 19:59:07 -0500, "jtech" <toomuch@spam.net> wrote:

mightmeak=-@hhmmy.nope.com> wrote in message
news:Ezm8c.52465$zP2.36398@bignews5.bellsouth.net...
How does one convert a temperture to frequency (CPS) is this possible TIA
Is this possible if so what is the formula it's all emf isn't?

TIA


Thermister/divider output to a vco( voltage controlled oscilator )
basically.

Surf for "V-to-F converter".

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

Throughout the history of this great country there have actually
been people of only two political persuasions: fighters and cowards.
WE MUST NOT LET THE LATTER PREVAIL IN THE NEXT ELECTION!

 

[Watson A.Name \"Watt Sun]

mightmeak=-@hhmmy.nope.com wrote:

How does one convert a temperture to frequency (CPS) is this possible TIA
Is this possible if so what is the formula it's all emf isn't?

TIA

You could use a couple thermistors, AKA temperature variable resistors,
as the freq determining elements in an RC oscillator such as a 555 or
wien bridge osc.

 

[N3UMH]

The Analog Devices AD537 voltage to frequency converter will do this
DIRECTLY.

It's got some sort of temperature sensor in it. You'll have to look
for the right case for your application.

You could also use a cricket, but they're not so stable.

<mightmeak=-@hhmmy.nope.com> wrote in message news:<Ezm8c.52465$zP2.36398@bignews5.bellsouth.net>...

How does one convert a temperture to frequency (CPS) is this possible TIA
Is this possible if so what is the formula it's all emf isn't?

TIA