VT
Type IR-BLTH
Description： VT IR-BLTH is a digital infrared temperature measurement module that integrates a self-developed MEMS thermopile infrared sensor and a 32-bit embedded microprocessor chip, equipped with a low-noise amplifier, 18-bit A/D converter and DSP Components such as the processing unit perform digital output through the Bluetooth digital interface, and the accuracy of human body temperature measurement can reach 0.2°C.
Features： 1.MEMS thermopile infrared sensor
2.Built-in DSP digital signal processor
3.Low power consumption and energy-saving working mode
4.Factory calibrated temperature range and accuracy:
Temperature range: 29°C ~ 40°C
Temperature measurement accuracy: ± 0.2 ℃
5.Applicable to various packages in different application fields
6.Bluetooth digital interface / 3V~3.3V input voltage
7.Easy system integration and lower application cost
◆Product application
-High precision non-contact temperature measurement
-Medical body temperature measurement
-Vehicle air conditioning control and glass anti-fog security inspection
-Temperature control of industrial mobile components
-Temperature control of printers and photocopiers
-Home appliance temperature control, security monitoring
-Moving object detection, thermal relay alarm
-Air conditioning in residential, commercial and industrial buildings temperature sensor
◆Product parameters
| Parameters | Parameter Value | Description |
| Temperature range | 29 ℃ ～ 40 ℃ | |
| Range of working temperature | 0 ℃ ～ 65 ℃ | |
| Temperature measurement accuracy | ± 0.2 ℃ | A sigma statistic |
| Input working voltage | 3 V ～ 3.3 V | |
| Temperature measurement field of view FOV | 90° | Can be customized |
| Geometry | 18 mm * 20 mm |
◆Module structure and application diagram
◆Application Diagram
◆Precautions
1.In the application design, it should be noted that the above accuracy can only be
guaranteed when the sensor is in thermal equilibrium. The following factors will
cause temperature differences: the thermal electrons on the back of the sensor,
the heater/cooler on the back of the sensor or the sensor The thermal balance of
the detector is broken in a short time.
2.The sensor has a certain measurement field of view (FOV), and the application
design should pay attention to the temperature of the measured object in the field of
view is basically uniform. The sensor window is integrated in the package against
the effects of ambient light with optical filters that block visible and near-infrared
radiation (which transmits long wavelengths). The wavelength passband of the filter is from 5.5 μm to 14 μm.
3.The VT IR-BLTH infrared temperature measurement module supports the user's
secondary development. The measurement results, working status and faults of the
module can be read by the digital bus. At the same time, the measurement method
and DSP function can be set by the user through the bus.