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Omron D6T Series User Manual

Omron D6T Series
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MEMS Thermal Sensors
MEMS Thermal Sensors
User’s Manual
A284-E1-03
D6T
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Omron D6T Series Specifications

General IconGeneral
Model SeriesD6T
Detection MethodNon-contact
InterfaceI2C
Output TypeDigital
TypeThermal Sensor
Field of ViewVaries by model
Number of PixelsVaries by model
Operating TemperatureVaries by model
Storage TemperatureVaries by model
Response TimeVaries by model
DimensionsVaries by model
Humidity Range85% (non-condensing)

Summary

Sensor Overview and Construction

General Overview

Describes the purpose and scope of the user manual for D6T-series MEMS Thermal Sensors.

Part Configuration and Exterior

Explains the components and arrangement of the D6T MEMS Thermal Sensor module and its exterior.

External Dimensions

Details the physical dimensions of the D6T MEMS Thermal Sensor circuit board.

Principles of Operation

Module Configuration Diagram

Shows a diagram illustrating the internal configuration and components of the sensor module.

Product Features and Performance

Sensor Type Comparison

Compares the operational characteristics of MEMS Thermal Sensors with pyroelectric sensors.

Field of View and Sensitivity

Illustrates the Field of View and sensitivity characteristics of the thermal sensors.

Factors Affecting Temperature Measurement

Usage and Connectivity

Usage Procedure Overview

Details the steps and procedures for using the MEMS Thermal Sensors.

Connector Pinout and Materials

Identifies the product's connector pin assignments and lists material specifications.

Electrical Connection Scenarios

5V Microcontroller Connection

Illustrates a direct connection method for a 5V microcontroller.

3V Microcontroller Connection

Shows a connection setup for a 3V MCU with a 5V fault-tolerant I2C port.

Using I2C Level Converter

Demonstrates how to use an I2C level converter for voltage mismatch.

Advanced I2C Interface Options

GPIO Terminal for I2C

Explains how to use a GPIO terminal for I2C communication processing.

Multi-Sensor I2C Switching

Details how to connect multiple D6T sensors using an I2C bus-switching IC.

I2C Communication Specifications

I2C Parameter Table

Lists I2C communication parameters like slave address, data length, and clock speed.

I2C Data Flow (16-Channel)

Shows a timing diagram for I2C data transmission for the 16-channel model.

I2C Data Flow (8-Channel)

Illustrates the I2C data flow for the 8-channel D6T-8L-09 model.

I2C Data Flow Examples

1-Channel and 1024-Channel Data Flow

Displays I2C data transmission timing for 1-channel and 1024-channel models.

Sensor Data Output Interpretation

Pixel Data Layouts

Illustrates pixel arrangement for temperature data across different channel models.

I2C Signal Timing and Definitions

Signal Terminal Flow

Displays the signal timing for I2C communication between MCU and sensor.

I2C Signal Terminology

Defines the symbols used in the I2C signal timing diagrams.

I2C Signal Flow for 8-Channel Model

I2C Communication Control and Registers

Start/Stop Conditions and Write Operations

Explains I2C start/stop conditions and shows write operation timing.

Register Map and IIR Filter

Details the D6T-32L-01 register map and explains the IIR filter functionality.

Temperature Data Retrieval Example

Sample Data and Code for 16/1024ch

Provides sample data and C code for 16 and 1024-channel models.

Code Adjustments for 1-Channel Models

Presents code modifications specific to the 1-channel D6T models.

Temperature Data Retrieval Example

Sample Data and Code for 16/1024ch

Provides sample data and C code for 16 and 1024-channel models.

Code Adjustments for 1-Channel Models

Presents code modifications specific to the 1-channel D6T models.

8-Channel Model Specific Code Additions

PEC Error Checking Routine

CRC Calculation Function

Implements a CRC-8 calculation function for PEC checking.

PEC Check for Specific I2C Reads

Details the PEC check process for Stop-Start I2C reads.

Clock Stretch (Wait) Functionality

Wait Detection Routine Explained

Outlines the routine for detecting and handling I2C clock stretch by the master.

Wait Detection Signal Diagram

Illustrates the signal flow and timing for the I2C wait detection process.

Communication Timeouts and Cover Material

Communication Timeout Behavior

Explains the conditions and behavior of communication timeouts in the sensor.

Surface Cover Material Guidance

Advises on selecting suitable cover materials for optimal sensor performance.

HDPE Thickness vs. Transparency

Shows how HDPE thickness affects transparency and sensor detection.

Sensor Installation and Securement

Mountable Area Diagrams

Displays diagrams showing the mountable areas for different D6T models.

Sensor Securement Illustration

Offers a reference illustration for securing the sensor.

Frequently Asked Questions (FAQ)

FOV Limitations and Improvement

Addresses questions about increasing the field of view and its limitations.

Interference from Remote Controllers

Explains that infrared signals from remote controllers do not cause incorrect operation.

Object Identification Capability

Clarifies that the sensor provides temperature data; distinction relies on software.

Human Sensor Detection Range

Discusses the effective detection distance when used as a human sensor.

Power Consumption Reduction Methods

Explains that power reduction requires shutting off power to the sensor.

Voltage and Address Configuration

States that 3V drive and slave address are not configurable for D6T sensors.

Sensor Stabilization Time

Describes the time required for the sensor to reach stable operation after power-up.

Glossary of Technical Terms

Thermopile Definition

Defines a thermopile as a device cascaded to a thermocouple to increase voltage.

NETD Definition

Defines NETD as a measure of noise converted into temperature, representing resolution.

FOV Definition

Defines FOV as the viewing angle index, often based on 50% sensitivity.

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