Ear Thermometer Non-contact Measurement Metal Housing Thermometrics
Infrared Detectors Thermopile IR Sensor ZTP-148SR
Description
ZTP Thermopile Infared (IR) Sensors are industry-leading higher
sensitivity level sensors. These devices respond to a broad
infrared spectrum, offer an inherently stable response to DC
radiation, and do not require source of bias voltage or current.
Consisting of thermo-elements, flat IR filter, and a thermistor for
temperature compensation in a hermetically-sealed TO package, the
series has a variety of filters available to maximize performance
in specific applications.The ZTP IR Thermopile devices are used to
provide non-contact temperature measurement in thermometry,
microwave ovens, induction heater cookers, air conditioners,
occupancy detection, lighting, underfloor heating control, and HVAC
/ automotive applications.
We are not limited to off-the-shelf, standard designs and cater to
user customization for the most demanding infrared sensing
applications,as well as PCB .
Thermopile
IR Sensor Application.pdf
OUTLINE OF SENSOR PACKAGE and PIN ARRANGEMENT [unit:mm]
THERMOPILE CHIP
| PARAMETER | LIMITS | Units | CONDITION |
| Chip size | 1.8 X 1.8 | mm2 | |
| Diaphragm Size | 1.0 X 1.0 | mm2 | |
| Active Area | 0.7 X 0.7 | mm2 | |
| Internal Resistance | 85(60-111) | ㏀ | 25℃ |
| Resistance T.C | 0.12 | %/℃ | |
| Responsivity | 61(43-79) | V/W | 500K, 1Hz |
| Responsivity T.C | -0.07 | %/℃ | |
| Noise Voltage | 37 | nV rms | R.M.S, 25℃ |
| NEP | 0.61 | nW/Hz1/2 | 500K, 1Hz |
| Detectivity | 1.14 | cmHz1/2/W | 500K, 1Hz |
| Time Constant | | ms | |
THERMISTOR- Thermistor for Temperature Compensation
| Parameter | LIMITS | Unit | Condition |
| MIN | TYPE | MAX |
| Resistance | 97 | 100 | 103 | ㏀ | Tol.:3%, @ 25℃ |
| Beta – Value | 3920 | 3960 | 4000 | K | Tol.:1%,Defined at 25℃/50℃ |
ABSOLUTE MAXIMUM RATINGS
- Operating Temperature : -20℃ ~ 100℃
- Storage Temperature : -40℃ ~ 120℃
TYPICAL CHARACTERISTIC DATA OF ZTP-148SR
SENSITIVITY
FIELD OF VIEW
| Parameter | LIMITS | Unit | Condition |
| MIN | TYPE | MAX |
| FIELD OF VIEW | 80 | 85 | 90 | Degree | 50% of Maximum Output |
THERMISTOR RESISTANCE (R-T TABLE)
Features
Non-contact measurement
Wider surface area measurement
Small-size sensor package
Included ambient temperature -(thermistor) sensor for compensation
High sensitivity
Fast response time
Application
Patient monitoring
Ear & Tympanic thermometers
Occupancy detection
HVAC
Appliance
IR Modules
ZTP Thermopile IR Modules provide greater levels of object
temperature accuracy, a wider range of storage temperatures, and
lower Thermopile output voltages than similar products on the
market. ZTP-115M is a single IR module that consists of a
thermopile, IR sensor, signal conditioning, and voltage output.
Specifications
Supply Voltage: Single Supply (+5V)
Supply Current: Typical 2.7 mA
Response Time: 0.3 ~ 0.6 second
Range of Measuring Temperature: -40°C ~ 145°C
Operating Temperature: -20°C ~ 100°C
Storage Temperature: -20°C ~ 120°C
Features
Non-contact measurement
Wider surface area measurement
Small-size sensor package
Included ambient temperature - (thermistor) sensor for compensation
High sensitivity
Fast response time
Analog output
Applications
Occupancy detection
HVAC
Appliances
Microwave ovens
