HOME . Products . Ultrasonic Sensor Products   
 
 
Product [HG-(M/L)40(T/R)A] Ultrasonic Sensor/Module for a Robot (Anisotropic)
Brand HAGISOIC
Origin KOREA
Price(M.S.R.P) Price Inquiry
Quantity ea
Option
   
ÁÖ¹®Çϱâ Add to Cart Add to Wish List
 
 
 
 

- WARNING -
Turn off the power at all times when connecting or removing connectoers or cables.
Chip damage due to over current is feared, and damage from this is not compensated.

" Ask for a separate price for more then 1000 units "

[Anisotropic] Directivity : Horizontal-approx. 160¡Æ, Vertical-approx. 65¡Æ



¢Ã    Features


  Object Detector and Range Finder


  Medium Range


  Various Directivities


  Low ¡®Click Noise¡¯


  Indoor Environment


  Minimum Dead Zone


  Real-Time Signal(5V TTL)


  Operates at 40kHz


  2 types of Modules


    Transmitter (T)


    Receiver (R)


 


¢Ã    Specifications



 


¢Ã    Terminals & Parts Description (HG-M40 Series Trigger Input)


 


¨ç    Pulse input terminal : The input voltage level of a pulse should be ranging from +2V to 10 V.


    The ultrasonic transmission part is driven at its rising edge whenever an input pulse is applied.


    The recommended period of input pulses ranges from 10 Hz to 50 Hz. (Available from 0 to Max. 200 Hz)


    Available for several pulse shapes such as TTL signals, impulses, square waves, sinusoidal waves or triangular waves.


¨è    DC input power terminal : The recommended voltage ranges from +DC 10 V to 16 V.


¨é    Signal output terminal : The square pulse is obtained in a receiver part and its level is 5 V.


    The time delay of the received signals is proportional to the distance between a sensor and an obstacle.


    The pulse width tends to be proportional to the size of an obstacle.


    The other output levels can be given by an order production. E.g.) 3.5V, 10V, etc.


¨ê    GND terminal : Electrical ground level for signals and a power.


¨ë    Frequency fine adjustment part : The frequency of driving signals can be finely adjusted in the range from 38 kHz to 42 kHz. (Recommendation: please do not fix it because it has been optimized when the module was delivered out of a factory.)


¨ì    Receiver gain control part : Sensitivity (Gain) is controlled by fixing a trimmer. The gain of analog amplifier ranges from 33 dB ~ 59 dB.


* Please note that on over-amplification of the receiver gain, interference noise signals might be shown by ultrasonic waves passing over directly from a transmitter to a receiver.


¨í    Analog signal test point : At the point, analogue signals (full waveforms) can be observed.


¨î    Working Indicator : A red LED lights when a transmitter is driven or a receiver perceives a signal.


 


¢Ã    Terminals & Parts Description (HG-L40 Series Burst Input)


 


¨ç     DC input power terminal : The recommended voltage ranges from +DC 10 V to 16 V.


¨è     Pulse input terminal : + 2 to 10 V. The signal should be amplified and ultrasonic on each application in real time. On the other hand, the Burst signal is also made available in 40 kHz, but its duration is approximately 0.5~1ms (Recommended interval : 10 to 30 time/sec, C.W. operation)


¨é     Signal output terminal : The square pulse is obtained in a receiver part and its level is 5 V.


     The time delay of the received signals is proportional to the distance between a sensor and an obstacle.


     The pulse width tends to be proportional to the size of an obstacle.


     The other output levels can be given by an order production. E.g.) 3.5V, 10V, etc.


¨ê     GND terminal : Electrical ground level for signals and a power.


¨ë     Transmission output fine adjustment : Adjust the amplification to fine tune the transmitting power.


* The purpose of equalization by compensating for deviation from sensor efficiency, but the range of adjustment is not large.


¨ì     Receiver gain control part : Sensitivity (Gain) is controlled by fixing a trimmer. The gain of analog amplifier ranges from 33 dB ~ 59 dB.


* Recommended for use, adjusted according to the detected object and range (increased sensitivity in CW direction)  


¨í     Analog signal test point : At the point, analogue signals (full waveforms) can be observed.


¨î     Working Indicator : A red LED lights when a transmitter is driven or a receiver perceives a signal.


 


¢Ã    Product Line-Up


 


¢Ã    Module and Mode Description


  Option 1) Type of Mode


    Trigger Input Mode (M-type) :


¡æ  Built-in ultrasound frequency 40 kHz oscillator and is always STAND BY.


¡æ  The sound waves are fired once per trigger pulse, with external input.


¡æ    Pulse is free to use, but the size of the sound waves and duration (approx. 1ms) are fixed.


    Burst Input Mode (L-type) :


¡æ  A relatively simple structure, with no oscillator and only an amplification and output circuit.


¡æ  Operation by external input is required to apply the BURST signal itself at 40 kHz (signal must be generated using a separate oscillator or software).  


  Option 2) Type of Modules


    Transmitter(T) : Only transmits the ultrasonic waves.


    Receiver(R) : Only receives the ultrasonic waves. 


  Difference between M-type and L-type


 


¢Ã    Timing Chart


 


¢Ã    Timing Chart of Range Finder


 


¢Ã    Each product-oriented graph 


 


¢Ã    Ultrasonic Distance Measuring Principle


 


  Principle


    Ultrasonic wave, which was sent from ¡®Transmitter¡¯, is reflected by an obstacle.


    Two receivers gets the reflected wave each and measures distance and time of flight proportion to each paths (P1+P2, P1+P3)


    The obstacle¡¯s coordinate can be determined by calculating intersection points of two ovals which is correspond to length of two paths.


 


¢Ã    Application