Emissivity Measurement Apparatus

Price 1000.0 INR/ Piece

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MOQ : 1 Piece

Emissivity Measurement Apparatus Specification

Warranty
1 Year

Usage
The present Set-up is designed to measure the emissivity of test plate. The test plate comprises of a mica heater sandwiched between two circular plates.Black plate is identical with test plate, but its surface is blackened.As all the physical properties, dimension and temperature are equal heat losses from both plates will be same except radiation loss.Hence the input difference will be due to difference in emissivity. Both plates are supported on individual brackets in a enclosure with one side glass to ensure steady atmospheric conditions.Temperature Sensors are provided to measure the temperature of each plate and surrounding.Electric Supply is given to heaters through separate variac so that temperatures of both can be kept equal and is me a sure with Digital Voltmeter and Digital Ammeter.

Display Type
Digital

Emissivity Measurement Apparatus Trade Information

Minimum Order Quantity
1 Piece

Payment Terms
Telegraphic Transfer (T/T), Letter of Credit (L/C), Cash Against Delivery (CAD), Cash on Delivery (COD), Cash Advance (CA), Cash in Advance (CID), Cheque, Days after Acceptance (DA), Delivery Point (DP), Letter of Credit at Sight (Sight L/C)

Delivery Time
2 Week

Sample Available
Yes

Main Export Market(s)
Central America, North America, South America, Asia, Australia, Eastern Europe, Western Europe, Middle East, Africa

Main Domestic Market
Andhra Pradesh, Jharkhand, Odisha, Punjab, Assam, Delhi, Chhattisgarh, Haryana, Himachal Pradesh, Jammu and Kashmir, Madhya Pradesh, All India, Kerala, Lakshadweep, Mizoram, Meghalaya, Manipur, Bihar, Chandigarh, Daman and Diu, Goa, South India, Central India, West India, North India, East India, Gujarat, Karnataka, Dadra and Nagar Haveli, Andaman and Nicobar Islands, Arunachal Pradesh, Tamil Nadu, Tripura, Pondicherry, Uttar Pradesh, Uttarakhand, Maharashtra, Nagaland, Rajasthan, Sikkim, Telangana

Certifications
AS ISO 9001:2008, ISO 14001:2004 and OHSAS 18001:2007 CO.

About Emissivity Measurement Apparatus

Emissivity Measurement Apparatus

Description :

The present Set-up is designed to measure the emissivity of test plate. The test plate comprises of a mica heater sandwiched between two circular plates.Black plate is identical with test plate, but its surface is blackened.As all the physical properties, dimension and temperature are equal heat losses from both plates will be same except radiation loss.Hence the input difference will be due to difference in emissivity. Both plates are supported on individual brackets in a enclosure with one side glass to ensure steady atmospheric conditions.Temperature Sensors are provided to measure the temperature of each plate and surrounding.Electric Supply is given to heaters through separate variac so that temperatures of both can be kept equal and is me a sure with Digital Voltmeter and Digital Ammeter.

Technical Specifications :

Test plate Diameter: 160 mm (approx.).
Black Plate Diameter: 160 mm (Approx.).
Heater (2Nos.): Ni-chrome Wire Heater. (One each for test plate & black plate).
Digital Voltmeter: 0-300 Volt.
Digital Ammeter: 0-2 Amps.
DPDT Selector switches: For Digital Voltmeter & Digital Ammeter.
Variac; 0- 230 V, 2 Amp, (2 Nos.)(One each for test plate and black plate).
Digital Temp. Indicator: 0-3000C, with multi-channel Switch.
Temperature Sensors: RTD PT-100 type.

Advanced Digital Measurement and Control

This apparatus leverages a digital display to enhance accuracy and simplify the monitoring of all test data. Through its integrated digital voltmeter and ammeter, users can precisely measure and adjust electric input to both heaters. The temperature sensors further help to keep experimental conditions stable, providing consistent, repeatable results for various research and industrial requirements.

Optimized for Distinct Emissivity Comparison

By ensuring that both the test and black plates have identical dimensions and physical propertiesexcept for surface treatmentthe apparatus enables clear isolation of radiation losses. This setup makes it straightforward to calculate the difference in emissivity, helping users to quantify thermal emission properties in controlled lab environments.

FAQs of Emissivity Measurement Apparatus:

Q: How does the Emissivity Measurement Apparatus measure the difference in emissivity between the test and black plate?

A: The apparatus compares the input electrical power required to maintain equal temperatures in both plates. Since all other variables are controlled, any difference in input corresponds to the difference in radiative heat loss, thus allowing precise calculation of emissivity.

Q: What is the process for operating the Emissivity Measurement Apparatus?

A: Users begin by placing both plates inside the temperature-controlled enclosure, connecting the heaters through separate variacs, and setting identical temperatures. The digital display shows readings from the voltmeter, ammeter, and temperature sensors, which are monitored until steady conditions are achieved for measurement.

Q: When is this apparatus typically used in industrial or research settings?

A: This apparatus is utilized during material science research, thermal engineering studies, and educational demonstrations, where understanding surface emissivity plays a critical role in assessing heat transfer properties.

Q: Where should the Emissivity Measurement Apparatus be installed for optimal performance?

A: For best results, the apparatus should be placed in a stable, draft-free laboratory environment to minimize external influences. The glass-sided enclosure helps maintain steady atmospheric conditions, reducing measurement errors.

Q: Can the temperatures of the plates be individually controlled during experiments?

A: Yes, each heater is powered through a separate variac, allowing independent temperature adjustments. This ensures accurate parity in temperature between plates for valid emissivity comparison.

Q: What are the practical benefits of using a digital display in this apparatus?

A: The digital display enables clear, real-time monitoring of temperature, voltage, and current, which facilitates more accurate and efficient data collection and minimizes the chance of operator error during the measurement process.

Q: What warranty and support are available with this product?

A: The Emissivity Measurement Apparatus comes with a one-year warranty covering manufacturing defects, ensuring reliability and after-sales support for exporters, manufacturers, and suppliers.

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