Heat Sensors Working Principle pyroelectric detectors Eltec E442-3 that is detected by changes in temperature pyroelectric detectors Heat Sensor Eltec E442-3 will be converted into voltage levels by the detector and temperature compensation in the initial block diagram. The voltage was obtained and confirmed by the pre-amp before going into the second op-amp that serves as a voltage comparator. The voltage comparator, voltage level will be compared with a reference voltage (2.5 V) and the results will be output from these sensors. Here is a block digram workings of pyroelectric detectors Heat Sensor E442-3 Eltec this.
Heat Sensors Working Principle pyroelectric detectors Eltec E442-3, Heat Sensors Working Principle, the principle of pyroelectric detectors work Eltec E442-3, characteristic of pyroelectric detectors Eltec E442-3, heat sensor characteristics, characteristics of the IR-EYE, IR-EYE working principle, working principle pyroelectric sensor fire detectors Eltec E442-3, characteristic of pyroelectric detectors fire sesnsor Eltec E442-3. We have an internal bias voltage on pin 3 pyroelectric detectors Heat Sensor Eltec E442-3. This voltage is used to drive an internal output amplifier. Maximum tension offset referenced from that point. The voltage reference provides zero for low drift DC coupling a comparator or converter a / d. The maximum current for this pin is 20 μA. Please note that the load current exceeding 20 μA can affect work performance of pyroelectric detectors Heat Sensor Eltec E442-3.
Characteristics of pyroelectric detectors Heat Sensor Eltec E442-3 according to the datasheet
* D (cm Hz1/2/W, BW-1Hz) 2.2 x 10-8
* NEP (W/Hz1/2, BW-1Hz) 1.1 x 10 — 9
* Responsivity (V / W) 3.7 x 10-5
* Common Mode Rejection (Min.) 5 / 1
* Common Mode Rejection (Max.) 15 / 1
* Noise (mV/Hz1/2) 00:36
* Thermal Breakpoint 0:15 Hz
* Electrical Breakpoint 5 Hz
* Incident Power (Max.) 0.2 Watts
* Power Supply Voltage 5-15 VDC
* Power Supply Current (Max.) 2.0 mA