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HRx Series Heat Flux Sensors

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Heat Flux Sensors of HRx series – the series of SMT high sensitive and self- calibrating miniature sensors for radiation heat fluxes. The Sensors are developed as a series of sizes: 4x4 and 6x6 mm2. Optional dimensions (size and thickness) as well as customized performance parameters are available on request.

The Sensors have wireless package of SMD style, suitable for SMD mounting by flip-chip method. Connectors of the sensors come out to back side of the package. HRx heat flux Sensors were developed for measurement of radiation heat fluxes in a wide range of heat flux intensities. The high sensitivity of the Sensors of the series provides accurate experiments and data on objects of investigations.

One of the key features of the HRx heat flux sensors is the self-calibration method (patented). It means a possibility to calibrate precisely the Sensor by measurement of its thermoelectric performance parameters. It is not necessary to remove it and send to labs.

The calibration procedure is possible with use of Datalogger of the DX8140 series, specially developed for thermoelectric heat flux Sensors, or by use of Z-meters.

Thermoelectric Heat Flux Sensors of HTx series

Thermoelectric Heat Flux Sensors of HTx series – the series of ultra-high sensitive and self-calibrating Sensors with integrated Pt1000 thermistors. The Sensors are developed as a series of a range of sizes with diameters 12, 14, 16, 20, 25, 30 and 40mm. Optional dimensions (size and thickness) as well as customized performance parameters are available by request.

The Sensors have package of SMD style, suitable for SMD mounting by flip-chip method. HRx sensors are wireless with SMT terminal pads of the sensor come out to back side of the package by vias. Both sides of the Sensors are from AlN ceramics. Sensitive surface side is covered with black paint having >0.95  emissivity. The internal ambient of the HRx sensors is potted by a silicon compound of high temperature stability. All HRX thermoelectric Heat Flux Sensors adhere to high manufacturing standards. Before shipping, the performance of each Heat Flux Sensor is individually checked and calibrated. All the data are advised in Specifications of the Sensor.

The HRX Heat Flux Sensors’ output is an analog voltage signal. Depending on the measurement task, the voltage signal can be in the μV to mV range.

To read-out the Sensor signal, three options are available: the DX8140 Datalogger, a voltmeter, or a third party read-out device.


Sensor Type


HRD

HRD

HRD

Sensor P/N


02-040-03L04

02-040-05L04

03-040-05L06

Surface material


AlN ceramics, painted black 

AlN ceramics, painted black 

AlN ceramics, painted black 

Protection


IP67 

IP67 

IP67 

Surface dimensions AxB

mm2

4x4

6x6

8x8

Thickness H

mm

0.8

0.8

0.8

Pellet pairs 


40

40

40

Spectral range

μm

0.2...15

0.2...15

0.2...15

Surface Emissivity ε


0.95

0.95

0.95

Sensitivity Se

μV/(W/m2)

11

17.3

22

Integral Sensitivity Sa

V/W

0.68

0.48

0.34

Detectivity

cmHz1/2/W

1.30E+09

1.70E+09

1.70E+09

Time Constant τ

s

0.4

0.7

0.7

Electrical Resistance1) ACR

Ohm

6.0

10.0

4.4

Power Density max Pe

±W/m2

14 500

9 000

9 000

Maximal Power Pa

±W

0.24

0.14

0.32

Thermal Resistance RT

K/(W/m2)

6.80E-04

1.30E-03

1.30E-03

Integral Thermal Resistance RT

K/W

42.4

70.5

31.3

Temperature Dependence2) dS/dT 

%/°C

0.25

0.25

0.25

Linearity with Power dS/dP

 ±%/(W/m2)

0.01 %

0.02 %

0.02 %

Homogeneity dS/dA.

 ±%

1

1

1

Calibration Accuracy

±%

3

3

3

Calibration Temperature Range

°C

-40 … +85

-40 … +85

-40 … +85

Operating Temperature Range

°C

-60 … +150

-60 … +150

-60 … +150

Soldering Temperature Max °C

°C

+260

+260

+260

Cooling Method


Convection

Convection

Convection

Terminal Contacts


Bottom Side

Bottom Side

Bottom Side

RoHS 


Compliant 

Compliant 

Compliant 

Datasheet

PDF

link

link

link


HRx Series Heat Flux Sensors (SMT Standard solutions)

CHECK ALSO

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Thermoelectric Heat Flux Sensors of HFX series

Heat Flux Sensors of HFX series – the series of high sensitive and self- calibrating miniature sensors for conductive, convective and radiation heat fluxes. The Sensors are developed as a series of a range of sizes: 4x4, 6x6, 8x8, 10x10, 12x12 and 14x14 mm2. Quade-shaped devices w/o integrated temperature sensor.