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HEAT FLUX SENSOR

HEAT FLUX SENSOR

HEAT FLUX SENSOR

Product catalog summary
Introduction to Heat Flux Sensors
Heat flux sensors are advanced devices used to measure the rate of heat transfer through a surface. They provide critical data for analyzing, controlling, and optimizing thermal processes across various industries, including building and construction, electronics, medical and metallurgical processes, fire safety, aerospace, environmental monitoring, and solar power.

Types of Heat Flux Sensors
1. Gardon Gauge (Circular-Foil Gauge): Measures high thermal radiation intensities, primarily through radiation mode. It provides a self-generated output of 10 millivolts at the designed heat flux level, with ranges from 10 to 800 W/cm².
2. Schmidt-Boelter Gauge: Operates on convective and radiative heat transfer principles, featuring a thick thermopile on a heat sink. It produces a voltage proportional to the incoming heat, with ranges from 1 to 5 W/cm².

Technical Parameters
- Heat Flux Range: 1 to 800 W/cm²
- Sensor Output: Linear, 10 mv nominal at full range
- Accuracy: ±5% or better
- Repeatability: 2% or better for lower ranges, 5% for higher ranges
- Measurement Duration: 60s for 10 W/cm²
- Dimensions: Diameter 25mm, Length 25mm
- ISO Standard: ISO17025 Accredited calibration certificate (optional)

Features
- Direct intensity measurement
- Calorimetric measurement without spectral reference
- Linear output proportional to heat transfer rate
- Rugged and reliable design
- Measures total heat flux (radiation and conduction)

Mounting and Accessories
Standard mounting configurations include flanges and water cooling tubes. Accessories such as voltage source meters and removable window attachments are available to measure specific components of heat flux.

Calibration Method
The calibration involves measuring temperature differences across a thermally insulating layer to determine incident heat flux. The sensor's response is linear, and calibration is performed using a precise volt-meter.

Industrial Application: TSB-1-K Model
The TSB-1-K Heat Flux Sensor is designed for industrial environments like flare stacks and furnaces. It features a precision thermopile element with an integrated Type K thermocouple, housed in a weather-resistant design. It operates within a measurement range of 0 to 1.5 W/cm² and a temperature range of –30 °C to +100 °C.

Ordering Information
Model TSB-1-K is available with a standard heat flux sensor and integrated Type K thermocouple, with a 2 m cable configuration.
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Catalog excerpts

HEAT FLUX SENSOR-2

Heat Flux Sensor ^^^TEMPSENS Temperature (°C, °F, and K) is a relative measure of thermal energy, whereas heat (J) is the actual energy transferred between objects due to a temperature difference. Heat Transfer refers to the process of thermal energy moving from a region of higher temperature to a region of lower temperature. Heat Flux (W/m2) isthe amount of heat transferred from or to a surface per unit time per unit area. This heat flux is measured by the temperature cha nge brought by the effect of the heat flux sensor. A Heat Flux Sensor is a state of the art device designed to measure the...

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HEAT FLUX SENSOR-3

Heat Flux Sensor Gardon gauge (circular-foil gauge) A Gardon Gauge heat flux sensors can measure the high thermal radiation intensities. These sensors majorly measure the heat transfer through radiation mode and account for the heat's effect due to convection and radiation heat. Each transducer will provide a selfgenerated 10-millivolts (nominal) output at the designed heat flux level. A single differential generates the EMF output thermocouple between the foil center temperature and foil edge temperature. The ranges include: 10, 30 and Upto 800 W/cm². Schmidt Boelter gauge The Schmidt-Boelter...

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HEAT FLUX SENSOR-4

Heat Flux Sensor TEMPSENSTechnical Parameters Parameters Heat Flux (maximum) Sensor Type Sensor Output Over Range Accuracy Measurement Duration Cable Length Cooled and Uncooled both type of sensor Gardon Gauge (10, 30 and Up to 800 W/cm2) Schmidt Boelter Gauge (1-5 W/cm2) Linear output, 10 mv nominal at full range ±25% of Rated Heat Flux Differential Thermocouple and Thermopile Sensor Specify either 3 meter ISO17025 Accredited calibration certificate (Optional) • Measures intensity directly. • Measure it calorimetrically, i.e., without reference to spectral quantity. • Less time constant. • Give...

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HEAT FLUX SENSOR-5

Heat Flux Sensor ^^TEMPSENSStandard Mounting Configurations There are various mounting configurations according to the industry requirements. • All mounting flanges are 43.5 mm dia. with 3.8 mm dia. mounting holes equally spaced on a 35 mm dia. bolt circle. • Water cooling tubes (when specified) of 4 mm dia. and 100 mm long made with stainless steel tube (Other tube diameters and fittings are available). • All threaded bodies have 1-12 UNF-2A threads. Voltage source meter: provided with sensor as per customer requirements. Window: It allows the user to measure only the radiative component of...

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HEAT FLUX SENSOR-6

Heat Flux Sensor Standard configuration of cooled/uncooled models     The sensor is provided with or without provision for water cooling of transducer body. Basic uncooled sensor nominal temperature will be 200°C. Water cooled should be specified if cooled sensor is expected to face temperatures above 200°C. Thermocouples can be mounted on the surface of Gardon Gauge heat flux sensor as per customer requirement. **The Gardon Gauge Heat Flux Sensor is available in five different configurations namely smooth body with flange, smooth body without flange, partial threaded body with flange, partial...

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HEAT FLUX SENSOR-7

Heat Flux Sensor ^^TEMPSENSHeat Flux Sensor Calibration Method • It works on the principle of axial one-dimensional heat flow. • It measures the temperature difference across a thin, thermally insulating layer to determine the incident heat flux. Due to the axial flow of heat, the temperature distribution across the sensing surface is uniform radially. • The maximum body temperature is limited to about 200°C when the sensor is not water-cooled. • All of the calibrations show a linear response of the sensor, with regression factors close to unity. • Heat flux sensor is mainly used for fire and...

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HEAT FLUX SENSOR-8

HEAT FLUX SENSOR ^WTEMPSENSIndustrial Heat Flux Sensor for Flare and Thermal Radiation Monitoring Product Overview: The Tempsens TSB-1-K Heat Flux Sensor is designed for accurate measurement of radiant heat flux in industrial environments such as flare stacks, furnaces, and process safety systems. It offers reliable long-term performance under harsh conditions and provides both heat flux and surface temperature measurement in a compact, weather-resistant design. The heat flux sensor employs a precision thermopile element with an integrated Type K thermocouple for temperature measurement. A high-temperature...

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HEAT FLUX SENSOR-9

Heat Flux Sensor Tempsens Instruments (I) Pvt. Ltd. - Unit II A-190, Road No. 5, MIA, Madri Udaipur -313 003 (Rajasthan) INDIA Ph. 91-8078605472, 91-9358835576

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