[time-nuts] Low CostTemperature sensor

[Tom Miller]

That article has a major error. Anyone know what it is?



----- Original Message ----- 
From: "Jason Ball" <jason at ball.net>
To: "Discussion of precise time and frequency measurement" 
<time-nuts at febo.com>
Cc: "Perry Sandeen" <sandeenpa at yahoo.com>
Sent: Tuesday, January 17, 2017 1:11 AM
Subject: Re: [time-nuts] Low CostTemperature sensor


> Even cheaper... Diiode as a cheap sensor ?
>
> https://www.arrow.com/en/research-and-events/articles/using-a-simple-diode-as-a-ballpark-temperature-sensor
>
>
> On Tue, Jan 17, 2017 at 4:16 PM, Bill Hawkins <bill.iaxs at pobox.com> wrote:
>
>> Perrier,
>>
>> Google finds a Siemens NI1000 sensor that follows the nickel curve.
>> Nickel is popular in industrial control for cost, but not as accurate as
>> platinum. Converting the platinum curve to accurate temperatures
>> requires a second order equation, but has been done with 0.1% analog
>> converters.
>>
>> Digi-key has ZNI devices as surface mount parts. Sparse data said
>> nothing about a platinum curve.
>>
>> I'm curious because my former employer did very well selling platinum
>> RTD sensors, usually 100 ohms at the triple point.
>>
>> Bill Hawkins
>>
>>
>> -----Original Message-----
>> From: time-nuts [mailto:time-nuts-bounces at febo.com] On Behalf Of Perry
>> Sandeen via time-nuts
>> Sent: Monday, January 16, 2017 9:33 PM
>> To: time-nuts at febo.com
>> Subject: [time-nuts] Low CostTemperature sensor
>>
>> List,
>> A while back there was much discussion about temperature sensors.
>> One simple inexpensive one to consider would be the ZNI1000Temperature
>> sensor.
>> It's 1K ohms at 0C and it replicates the temperature curve of the Pt 1K
>> ohm sensors.
>> It's about $3 from Digi-Key.
>> FWIW YMMY
>> Regards,
>> Perrier
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>
>
>
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>
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