Movement Detection

Pyrodetectors from Excelitas use the pyroelectric effect to recognize temperature variations by detecting changes in the infrared radiation received. The devices shown below are suitable for motion sensing, movement detection and intrusion alarm systems. 

Excelitas was the first to introduce a family of detectors offering a digital signal output. The DigiPyro® truly digital pyroelectric infrared detector family is offered as a complete range of digital pyrodetectors in TO metal housings including dual-element models (PYD1788, PYD1798), four-element PYQ2898, PYQ5848 and PYQ1648, and "Smart" DigiPyro® models PYD1096 and PYQ1098 - smart pyros with total motion electronics integration. 

DigiPile products are digital thermopiles ie they provide a digital output. Fewer external components are needed, reducing pcb space requirements, and EMI resistance is improved. All "Digi" variants include a proprietary digitising circuit (ADC).

Excelitas integrated thermopile sensors feature a thermopile with integrated processing - and some are now available in small SMD housings.

Excelitas has also introduced new SMD pyroelectric detectors to facilitate high-volume, SMT-compatible production in key motion and presence detection applications, including intrusion alarm systems and energy-saving motion-activated automatic light switches.

Excelitas has recently launched CaliPile™ - a new range of intelligent compact IR sensors capable of multiple sensing applications. This series of sensors include a highly sensitive thermopile detector and onboard electronics that allow the sensors to be set into three distinct function modes - motion sensing, presence detection and temperature measurement. Form factors include compact SMD housing and traditional TO metal case versions with either aperture window or IR focusing lens.

Applications for the CaliPile Series include short-range presence detection with no additional lens requirements, non-contact temperature measurement and overheating protection, IoT and smart-home products, lighting and printer sensing, and general industry thermal IR detection.

Applications for the CaliPile Series include short-range presence detection with no additional lens requirements, non-contact temperature measurement and overheating protection, IoT and smart-home products, lighting and printer sensing, and general industry thermal IR detection.

Analogue Dual Pyro

This Dual Element detector family offers standard TO-5 housings with different window sizes. Whereas LHI 778 is designed to meet low cost and having small optical window, LHi 878 offers standard window size. PYD1388 has same dimensions and provides for additional EMI protection as option.

Analogue Quad Pyro
The analog LHi 968 series with Dual Element configuration is performance-proven top of the line product in high-end applications. The LHi 968 design provides for a reduced sensitivity to EMI and excellent White Light Immunity (WLI). PYD 1398 offers a higher level of RF immunity and is optionally available with grading for lower white light sensitivity.
Analogue Ceiling Mount
This series of four element “Quad“ Detectors provides all four elements connected to one common output. This configuration enables specific applications in ceiling-mount location when applied with suitable lens or mirror optics designs. Different window options are provided: Large window or standard rectangular window size. Various element polarities available upon request. For better EMI protection, the built-in capacitor option is available.
Dual DigiPyro Gen 2

This upgrade from our PYD 1600 Series offers significant reduction of supply voltage requirements. The PYD 1500 Series operates at 1,8V – 3,6V. In addition, PYD 1588 and PYD 1598 offer a selectable band-pass function, and a selection of pulse count options.

Quad DigiPyro Gen 2

This is the four element version of the low power DigiPyro Gen 2, and has a quad type element configuration with a single output. Operates at 1.8V - 3.6V. Selectable band pass function, selection of pulse count, wake-up / sleep mode promotes power savings and extends service life, making it ideal for prolonged battery-operated motion detection.

Dual DigiPyro

The DigiPyro® detector range in TO-5 housing includes many Dual-Element types, some with different window sizes. The element configurations are identical, along with the internal electronic circuits. The PYD 1788 is the lower-cost version with standard size window, while PYD 1798 offers better White-Light-Immunity (WLI) performance and Field of View. The Output signals are communicated in one digital bit stream of 2x14 bit, output via a single wire “Direct Link” connection to a suitable host microprocessor.

Quad DigiPyro
This PYQ family features 3 different Quad configurations, which is the polarity, spacing and arrangement of the four sensing elements. All versions have the dual output channels which combine two sensing elements in series connection to one channel output. In addition, a temperature reference output is provided, making the total output bit stream as 3x14 bit.
Low Cost DigiPyro
The PYQ 1748 includes a Quad design pyroelectric element, A/D converter and the digital signal processor, built into a TO-5 housing. All four sensing elements are electrically connected in series and transmitted in digital signal format to one output. Geometrically the polarity of the elements has been arranged to represent the best configuration for ceiling mount applications. The PYQ 1748 signal transmssion provides 2x14 bit and is identical to PYD 1788.
Smart DigiPyro
The Smart DigiPyro® family provides for a complete motion detector solution, with all electronic circuitry built-into the Detector housing. Only power supply and power-switching components need to be added to make the entire motion switch, a timer is included. The series has versions which can include ambient light level and sensitivity adjustments.
Miniature DigiPyro
This Pyrodetector features a miniaturized Dual Element Pyro in TO-46 housing. The PYD 5731 offers the same Direct Link interface as the regular PYD 1798 DigiPyro, for the output of the Dual Element Pyro and additional temperature reference output. The small housing and reduced element size and spacing will enable customers to reduce the size of their optics and design smaller motion detection units.
Low Power DigiPyro
The LowPower DigiPyro® further reduces power consumption, offering reduced current requirement at 3V supply and new programmable features: The Wake-up/Sleep mode enables the PYD 16 to save unit power, making it ideal for battery operated motion detection applications. 
Surface Mount Pyro

SMD dual element Pyro and DigiPyro for simple motion sensing. Small size enabling reduction of optical design size.

CaliPile TPiS 1S 1385

The most compact thermopile sensor with integrated signal processing within the range. It features a wide field of view and low power consumption. The technology of a highly sensitive thermopile combined with smart data treatment allows for much more than the traditional temperature measurement of remote objects. Once configured via the I2C interface an interrupt output can be used to monitor motion, presence or an over-temperature of remote objects.

CaliPile TPiS 1T 1084

Robust TO housing with an aperture, highly sensitive detector on a thermopile base plus processing electronics. The Sensor is provided with storage of calibration data and a number of digital filters. For all temperature measurement applications, the sensor is calibrated for temperature range up to 120°C or up to 200°C. The interrupt function also allows use of the sensor as a temperature alarm in industrial instrumentation.

CaliPile TPiS 1T 1086

Robust TO housing with an aperture, highly sensitive detector on a thermopile base plus processing electronics and a focussing lens for narrow field of view. The Sensor is provided with storage of calibration data and a number of digital filters. For all temperature measurement applications, the sensor is calibrated for temperature range up to 120°C or up to 200°C. The interrupt function also allows use of the sensor as a temperature alarm in industrial instrumentation.

CoolEYE 16x16 Array

This CoolEYE Infrared Image Sensor offers spatial resolution of 256 pixels (16x16) giving the benefits of fast response with relatively low-resolution infrared imaging.The new module includes a small IR transmissive lens and a new array sensor. A small microprocessor on the module board provides a calibrated signal and acts as the bus interface.

CoolEYE 32x16 and 32x32 Array

This CoolEYE Infrared Image Sensor offers spatial resolution from 512 to 1024 pixels, with a parallel readout and fast response suited to low-resolution infrared imaging.The module includes a new array sensor and a small microprocessor which provides a calibrated signal and acts as the bus interface. The module is supplied with a micro USB connector.