Products

SMH-01B11
[Infrared Array Sensor Module]

Overview

SMH-01B11 is a thermopile-type infrared array sensor module that features an 8×8 array of sensor elements to detect and convert the infrared energy within an area to a signal for output.
It is equipped with a Si-lens optical system, and features an MCU with built-in A/D converter that generates digital output, on an I2C interface, of both the converted emission temperature of each sensor element and the ambient temperature from a temperature sensor mounted on the sensor chip.
The module also has a built-in variable gain preamplifier which enables measurement of wide temperature range using auto range control by software.
Comparing with existing sensors, advantages of this module are high sensitivity and wide temperature range detection that will satisfy the needs of consumer appliances such as air conditioner and microwave oven,  industrial equipment such as disaster prevention/security device and medical appliances such as nursing care equipment etc.

Specifications

・64 elements in 8×8 square array configuration
・Switchable frame measurement speed: 4, 2, 1 fps (switching by software)
・Si lens optical system:35°total field-of-view angle
(between peak value of elements on both sides)
・Digital output by 12-bit ADC (I2C)
・Gain switching for measurement extension up to 250°C using variable-gain preamplifier (25°C ambient
temperature environment)
・Ambient temperature detection using band-gap sensor, with built-in temperature correction coefficient
・Emission temperature resolution: ±1.5℃
・Supply voltage: 5.0V±5%
・Current consumption: 8.8mA(typ.)
・Storage temperature: -40 to 100℃, Operating temperature: -20 to 100℃
(temperature characteristics confirmation range: 5 to 45℃)

Block Diagram

Applications

Disaster prevention equipment, Security device, Thermography equipment, Air conditioner, Microwave oven, Range hood, Nursing care equipment

Example of radiant temperature

Physical dimensions

Data sheet