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Double Sheet Sensors Ultrasonic Single And Double Tension Sensor for Paper

1. Item: Single Sheet Double Sensor | Double Sheet Detector | Double Sheet Sensor | Double Sheet Controller
2.The medium being measured: coated paper, laser printing paper, invoice paper, cardboard, thin film, sheet metal.
3.Features:
Includes a signal processor and two ultrasonic sensors (transmitters and receivers); reliable detection of multi-layer paper, plastic sheets or sheet metal with a sensing range of 40-80mm;
The materials were measured from 20 g/m2 paper to 400 g/m2 cards; 100 g/m2 paper to 1000 g/m2 single-layer paperboard. Measurement speed: 15ms /pc
4.Main Specifications:
LED display: display paper status 0, 1, 2
Supply voltage: DC 24V ± 15%

Quantity:
  • PHDS24VDC
  • Piezohannas
  • PHDS24VDC

Double Sheet Sensors Ultrasonic Single And Double Tension Sensor for Paper 

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1.Product Description:

It is single and double detection sensors of using ultrasonic technology, mainly used to monitor multi-layer paper sheets ,plastic and metal films. In order to identify two or more sheets, it is unintentional stick together. Each layer is compared to the stored reference value and is indicated accordingly. It is single or double layer and the stored value can be corrected manually. Mainly used to detect single and double sheets.Single sheet pass and double will alarm function, and is not subject to vibration, material, color of the object to be inspected.The restrictions are widely used in paper, stamping, instant noodle lapping machines and other industries.Ultrasonic single-double detection sensor is specially developed ultrasonic transducer and ingenious electronic circuits that can be used for accurate inspection of a wide range of material thicknesses, transparencies, thin metal sheets and so on. The ultrasound system is unmatched by the photoelectric double-sheet detector because it does not depend on the color of the material.


 Ultrasonic technology  of single-double detection sensor doesn't can be adapted to various sheet materials comparing to conventional mechanical or light single sheet double control , such as potentiometers or transducers which is superfluous to adjust .


2. Product Features:

Including one signal processor and two ultrasonic sensors (transmitter and receiver

Device);Reliably detect multi-layer paper, plastic sheet or metal foil with a sensing range of 40-80mm;

Measuring materials ranging from 20g/m2 paper to 400g/m2 cards; 100g/m2~1100g/m2

Measurement speed: 15ms detection each time

Profile mounting size of ultrasonic sensor: M18*1.5 thread

Resolution: 3 kinds of signals (air, single, double, multiple) output, can be used in a variety of
application.


3. Product Principle:
A high frequency ultrasonic transmitter emits an ultrasonic beam beneath the sheet. Acoustic wave cause  thin plate vibrates, and this will in turn produce a very small sound waves on the other side of the thin plate . This small sound wave is received by the ultrasonic receiver. If it is two pieces, one is on the upper of another piece, the signal becomes weaker, so that it is basically impossible to reach the receiver.


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4.Technical parameters:


Function

ultrasonic single sheet double sensor

 

Supply voltage

24VDC

Working temperature

Transducer:  +570℃Meter   +560℃ 

Storage temperature

-4080℃

Working area

20g/m2 paper to 1100g/m2 card

 

Electrical interface

φ14

Cable length

 Transmitter200mmReceiver:200mm

Analog display

Red light:out of paper ;  green light: one piece;  yellow light: two or more pieces

Housing Material

 

Housing Material:metal; Sensor: ABS (Please use special materials if it is anti-corrosion media)



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5.Comparison methods of used for common single sheet double detection :




Mechanical + electrical contact type

mechanical + photoelectric sensor type

aspirated-air type

photoelectric type

capacitance type

ultrasonic type

 

 Paper Quantitation Requirements

>60g/㎡

>40g/㎡

>60g/㎡

>28-170g/㎡

>120g/㎡

>20g/㎡

 

Paper smoothness requirements

None

None

Yes

None

None

None

 

Paper whiteness and graphic requirements

None

None

None

Yes

None

None

The suitability of metal materials

Yes

Yes

Yes

No

No

Yes

 

The suitability of non-metallic materials

Yes

Yes

Yes

No

Yes

Yes

 


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