Ultrasonic Sensor Receiver Problem

Hi, I have built the ultrasonic sensor ranger with the help of "2002MAR08_RFD_DA_AN.PDF" but it is not working.

Explanation of the sensor:

Base on the availability of the component I choose,

( I )

1. ICM7555 instead of TLC555
2. CA3130 instead of CA5160 and
3. LM567.
4. PIEZO ULTRASONIC SENSOR: Module T40-1601

R40-1601, Center Frequency:

( I I )

1. Since the reset pin is remain high after given power on transmitter module, I am adding 10k resistance between ground and reset pin.

1. At 5 volt supply [after step ( I I ) . 1 ] to the reset pin, it is generating ultrasonic sound. Freq of this sound 39.95 khz (If I try to tune more accurate to 40 khz, It become 40.25, 40.5 khz, but all is with in the acceptable range 39-41 khz).

( I I I )

Nothing happed on receiving end.

Please take look in this issue, and tell me the possible way to solve it.

I have listed a very Impotent response, that I had got before a week:

>>

There should be enough light getting through the gap between the transmitter frequency of 38.75kHz and the receiver at 40kHz +/- 1kHz for you to be able to see the problem yourself.

-- John B

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Thanks

Dibyendu