Physics Lab Equipment

Temperature Properties of Various Temperature Sensors.png

Measurement of  thermal resistance using constant current method


Temperature Properties of Various Temperature Sensors.png

Measurement of  thermal resistance using DC bridge method


Temperature Properties of Various Temperature Sensors.png Temperature properties of  3 types of  thermal resistances


Temperature Properties of Various Temperature Sensors.png

PN-junction temperature sensor


Temperature Properties of Various Temperature Sensors.png

Current-mode integrated temperature sensor

LETI-50 Temperature Properties of Various Temperature Sensors

LETI-50 Temperature Properties of Various Temperature Sensors

Introduction

Temperature plays an important role in scientific research and industrial production process where temperature sensing and control is widely required. Temperature sensors are made of materials such as metals and semiconductors based on their temperature-related properties.

 

This apparatus consists of a precise temperature control system, a constant-current source, a DC bridge, DC power supplies, a digital Voltmeter, and a set of temperature sensors including Pt100 temperature sensor, NTC1K thermistor, PN-junction temperature sensor, AD590 current-mode integrated temperature sensor, and LM35 voltage-mode integrated temperature sensor.

 

Using this apparatus, the following experiments can be conducted:

 

1. Learn to use constant current method to measure thermal resistance;

2. Learn to use DC bridge method to measure thermal resistance;

3. Measure temperature properties of a platinum resistance temperature sensors (Pt100);

4. Measure temperature properties of a thermistor NTC1K (negative temperature coefficient) ;

5. Measure temperature properties of a PN-junction temperature sensor;

6. Measure temperature properties of a current-mode integrated temperature sensor (AD590);

7. Measure temperature properties of a voltage-mode integrated temperature sensor (LM35).


Specifications

DescriptionSpecifications
Bridge source+2 V ± 0.5%, 0.3 A
Constant current source1 mA ± 0.5%
Voltage source+5 V, 0.5 A
Digital voltmeter0 ~ 2 V ± 0.2%, resolution, 0.0001V; 0 ~ 20 V ± 0.2%, resolution 0.001 V
Temperature controllerresolution: 0.1 °C
stability: ± 0.1 °C
range: 0 ~ 100 °C
accuracy: ± 3% (± 0.5% after calibration)
Power consumption100 W


Part List

DescriptionQty
Main unit1
Temperature sensor6 (Pt100 x2, NTC1K, AD590, LM35, PN Junction)
Jumper wire6
Power cord1
Manual of temperature controller1
Experimental instruction manual1


Temperature Properties of Various Temperature Sensors.png

Measurement of  thermal resistance using constant current method


Temperature Properties of Various Temperature Sensors.png

Measurement of  thermal resistance using DC bridge method


Temperature Properties of Various Temperature Sensors.png Temperature properties of  3 types of  thermal resistances


Temperature Properties of Various Temperature Sensors.png

PN-junction temperature sensor


Temperature Properties of Various Temperature Sensors.png

Current-mode integrated temperature sensor

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