FAQ

Some Frequently Asked Questions:

Fine thermocouples (ø 25µm) have a time constant less than 2ms (2/1000 second).

The measurement of the accurate time constant of a thermocouple was not possible in the past, because there were not so fast temperature change processes less than 2 ms until today. So one of our clients could measure 3000rpm intake-air temperature accurately with our 25µm Fine thermocouple. It means 1 cycle=20 ms. To show very fine temperature curve, we needs at least 10 measuring points, seems 2 ms between measuring points (seems 2ms time constant).

If there is a more quick temperature change equipment available than there is today, ANBE’s thermocouple might be able to measure even more fast and accurate. See detail

To get faster responsiveness, ANBE is using nonstandard wires from JIS (Japan Industrial Standard). There is no heat resistance data in JIS for ANBE's thermocouple. The following data has been collected by our experiments and reports from our clients. ​

K type ø 25μm Fine thermocouple
It was durable when 800 ℃, for 2 days in the air.

K type ø 13μm Fine thermocouple
Average temperature 400 ℃, for 1 hour was durable, but broke when it’s 800℃ ​ ​

K type 40µm thickness Sheet thermocouple & ø 200µm Multipurpose thermocouple
It was durable when 900 ℃, at least 20 hours in the air. ​

ANBE's thermocouple are mainly used in Laboratory, R&D department, university, governmental institution in following industry.

  • Electronic Industry
  • Motor Industry
  • Heavy Industry
  • Chemical Industry
  • Airline Industry
  • Defense Industry
  • Biotechnology Industry
  • Medical Industry

For example, to measure following temperature:

  • Air-breathe temperature inside of engine
  • Rocket booster surface
  • Inside of vacuum furnace (Including manufacture compression fitting)
  • Underfill material inside of FC
  • Inside of a battery cell
  • One biological cell (patch clamp experiment )
  • Cutting instrument (drill, end mill, etc)
  • Pulse heater tip (Sheet thermocouple tighten up with a screw )
  • Paper’s surface inside of a printer
  • IC junction (for emergency shutdown)
  • Pipe surface
  • Backside of a leaf
  • Baby’s breath
  • Ultra thin heat spreader
  • Solar battery
  • Molten plastic when mold injection by integrate thermocouple
  • Surface of a needle
  • etc

If the ability of ANBE thermocouples shows no maximal result, there are some possible causes: ​

1. Is this the right thermocouple for your experiments?

Example 1:  if you are measuring with our Multi purpose thermocouple for fast temperature change, it is not suitable. You had better to use our Fine thermocouple or Sheet thermocouple(for surface). ​

Example 2: In case you measure electrical conductive materials, the thermocouples should be well insulated. For example in case you measure the temperature of an electrically conductive solution, you have to use Teflon insulated thermocouple with the bare wire also insulated (except junction part of the tip). 

2. Is the fixing way correct?
If you are using too much adhesive materials, the adhesive materials itself absorbs heat. Due to this, the heat capacity becomes bigger, so you can not get a fast response.

In case you are using a low heat conductivity material to fix our thermocouples, it can occur that the response is not fast either. ​

3. Does your data-logger have a fast enough sampling time?
Depending on your experiments, you may need a faster sampling time. With our favorite GL-900 series, you can measure a maximal 10µsec sampling time. Download brochure for GL900-4(4ch) / GL900-8(8ch)

In case you measure electrical conductive materials, it sould be insulated between the thermocouple and the object which you measure.

Otherwise you would measure not only the tip of the thermocouple, but between the thermocouple wires. In this case, you may not be able to measure the right temperature, and also may not get a fast response. You can ask us about our insulated thermocouples.

We are using Japanese thermocouple wires.

Red insulation side    : + (positive)
White insulation side : - (negative) 

Yes, We produce custom-made thermocouples.

A half-shealted thermocouple is also one of our custom-made thermocouples.

Please contact us, we will offer you the most suiting thermocouples for your experiments.

Not only the quality of the thermocouple, but also the fixing way is very important to get high response and right temperature. For more detail, please read here...

 

The following table is only a simplified candidate method.

Kind of Thermocouple

Fixing Method Candidate

* Heat Resistance(°C)

Fine thermocouple

High Temperature Solder

(Pb90% Sn8% Ag2%)

295℃ (Melting Point)
Ag Paste Thermal Conductivity: 9.1W/m-K 927 °C
(Polyimide Tape) 260℃

 Sheet Thermocouple

Polyimide Tape 260℃
Multi-Purpose Thermocouple

High Temperature Solder

(Pb90% Sn8% Ag2%)

295℃ (Melting Point)
Ag Paste Thermal Conductivity: 9.1W/m-K 927 °C
(Polyimide Tape) 260℃
Fine & Sheet Thermocouple High Temperature Solder

(Pb90% Sn8% Ag2%)

295℃ (Melting Point)
Ag Paste Thermal Conductivity: 9.1W/m-K 927 °C
Polyimide Tape 260℃

* Above heat resistance are our product's heat resistance. if you purchace from other company, it will be different.

Anbe

+32 (0)479 91 18 31

info@anbe.be

Winterslagstraat 154
3600 Genk
Belgium

QUESTIONS?

Consult our FAQ section or contact us.

OPENING HOURS

Mon - Fri: 9am - 6pm
Sat - Sun: closed

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