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Microwave glue detector

Glue Detector is an electronic system to detect and measure the amount of glue placed over a sheet of paper. It is fast and contactless.
Using a RF signal at microwave frequencies, it is possible to control the gluing process with a high precision, being sure that the requested amount of glue has been placed on the paper.
This device can be used all the times a feedback to the automatic glue dispensers is requested. It is useful to provide information to the controller of the machine to correct possible problems during the work process.
It can work with hot melt or cold glue.
No moving mechanical parts are present.
It is mainly composed by two parts: an electronic board to manage the signals and a sensing element to interact with the glue. The two parts are connected by two coaxial cable.

It can work in the darkness or in extremely lighted environments. The measurement is not dependent by the temperature of the product and vibrations are not a problem.
It can be applied to new machines as well as an upgrade to old ones. It is easy to operate and it does not reduce the quality of the product: contactless measurement.
The time required for the result of the measurement is less than 1 ms from the rising edge of a 12/24 Vdc trigger signal.
The output information can be represent by an ON-OFF signal (glue – no glue) or numerical. In this case the numerical value of the measurement is sent on the RS232 interface.
It does not require maintenance.
It works on 12 Vdc or 24 Vdc powered systems.
It can be customized upon request of the customer.

GlueSens1_small
Diapositiva2_small
Diapositiva3_small

To request information, please use the following form.


Morse Stick Keyer

Morse Stick is a simple and easy to use Morse code electronic keyer thought to be light, small and inexpensive.

It is ideal for portable and QRP operations, in car installations, but also for travelling everywhere you want with your favourite radio.

It doesn’t have mechanical parts, it is totally electronic. And it doesn’t need any battery to work! Use simply your fingers to start operating Morse code with your favourite radio.

It works with all the modern transceivers replacing a normal mechanical 3 wires Morse keyer.

It can be used with FT-450D, FT-817, FT-857, FT-897, IC-706, IC-7000, IC-7300, TS-480, Elecraft KX3 and similar (low voltage (3 – 5 V) on keyer connector).

Technical data:

  • size – 100 x 19 x 2 mm;
  • weight – 6 grs + cable;
  • cable – 60 cm 3 wire;
  • connector – 3,5 mm stereo jack.

Please watch these demo videos.

This paddle has been replaced with a newer version: please visit https://www.tspelettronica.com/wp/2018/07/28/cw-stick-keyer-2/

ZCONV485

ZCONV485 is an efficient and compact RS232 – RS485 self-powered converter.

It connects directly to the RS232 port using the classic 9-pin SUBD connector. From this it derives also the current necessary for its operation.

On the opposite side there are 6 terminals with a 5.08 mm pitch to which the RS485 communication cable is to be connected. It is also possible to supply the converter directly from the bus by applying a voltage between 9 and 24 Vdc.

Technical characteristics, RS232 side:

  • Data Rate up to 120 kpbs
  • ESD +/-15 kV (HBM – Human Body Model)
  • Meets or Exceeds the Requirements of TIA/EIA-232-F and ITU v.28 Standards
  • Max supply current 15 mA

Technical characteristics, RS485 side:

  • Maximum bumber of end node: 32
  • Low Supply Current, 5 mA Max
  • Meets or Exceeds the Standard Requirements of ANSI RS-485 and ISO 8482:1987(E)
  • Common-Mode Voltage Range of −7 V to 12 V
  • Positive- and Negative-Output Current Limiting
  • Driver Thermal Shutdown Protection

The following table shows the pinouts of the two connectors.

RS232
RS485
Function

1
Power Supply 9 – 24 Vdc
2
2
RXD+ / A

3
RXD- / B

4
TXD- / Z
35
TXD+ / Y
5
6
Gnd
4, 7

Power Supply

More information? Please use the following form.

GPIO4431

This electronic board is based on a  microcontroller PIC18F4431 from Microchip and it acts like a small PLC.
With respect a standard PLC, this is a much more high performance/cost ratio solution.
Its microcontroller is able to control each input and ouput signal faster than a lod-end PLC, just in few microseconds.

The board is equipped with:

  • 16 digital inpunt working at 24 Vdc;
  • 8 digital PNP output – max ouput current 100 mA @ 24 Vdc;
  • each input and each ouput is equipped with a LED to easily see the corresponding state – active high;
  • 1 analog input 0 – 10 Vdc;
  • 1 input for an incremental encoder with A, B and INDX signals decoding;
  • 1 RS232 serial port to communicate with and external device (terminal, PC, bar-code reader etc).

The dimension of the board are: 100 x 160 mm.

The green plastic enclosure is ready for the hooking on the DIN bar.

For more information, please use the following form.

Brake/clutch control with overvoltage

This electronic board, now in its third generation, deals with the control of the power supply of electromagnetically operated brake / clutch groups.
It is able to continuously power the group with a maximum of 2 A at 24 Vdc. For a faster response of the mechanical system, it controls a programmable olvervoltage up to 48 Vdc: this can be programmed via the RS232 serial port from 1 to 255 ms.

All the functions are governed by a microcontroller. In this way it is possible to implement control functions that are difficult to obtain with simple analog circuits or based on logic networks. The two channels dedicated to driving the brake and the clutch are managed independently, i.e. the timing of the overvoltage can be set with different durations.
The switching takes place by driving a suitable PNP input: if in the LOW state, for example, the brake is activated, if in the HIGH state the clutch is activated (the outputs can be exchanged, of course).

An additional input is used as an ENABLE signal: connected to the machine emergency response line, it allows to disable all outputs.
In addition to the two outputs for controlling the brake / clutch unit there are two other PNP outputs (max 50 mA @ 24 Vdc), one of which is used to indicate the so-called READY signal.
The system can also work at 12 Vdc.

Power supply:

  • one input for the voltage of 12/24 Vdc ± 10% for the control logic and brake / clutch in steady state;
  • one input for the voltage of 24 ÷ 48 Vdc for the overvoltage of the brake / clutch unit.

5 PNP inputs:

  • one is used as an enabling signal (READY);
  • one is used to to change the state of the output (e.g. LOW = brake, HIGH = clutch);
  • three more inputs are available for future uses.

4 PNP outputs:

  • 24 VDC / 2 A brake power supply (up to 48 VDC) with programmable duration;
  • 24 VDC / 2 A clutch power supply + supercharging (up to 48 VDC) with programmable duration;
  • READY signal;
  • one additional spare output manageable by the microcontroller for future applications.​

RS232 serial port: (115200,8,N,1) this is mainly used to change the setup of the board, i.e. the timing of the overvoltages.

Maximum switching frequency: this is mainly overvoltage time dependant.

Dimensions: 9,8 cm x 8,8 cm

For more information, please use the following form.

MultiControl V.2

For one of the our most valued customer we have designed and programmed an electronic board based on the powerful microcontroller dsPIC 33FJ256MC710a from Microchip.

Multi Control V. 2.0
Multi Control V .2.0

Here below we summarize the main features, just enough to understand what types of electronic systems TSP is able to create according to customer specifications.

  • microcontroller dsPIC33FJ256MC710a from Microchip
  • 24 inputs working at 24 V
  • 24 PNP outputs working at 24 V
  • differential incremental encoder interface
  • CAN bus
  • 2 x RS232
  • RS422/RS485 optoisolated
  • I2C Bus
  • estended power supply 9-30 Vdc
  • dimension 188 x 130 mm

Here below you can see some details about the layout and the PCB.

Layout of the board
PCB tracing and routing
The board is inside the control panel of the machine

For more information please use the following form.

Microwave detector and counter for sheets of paper

For a particular industrial application, a special microwave sensor has been invented and patented. Its use is foreseen when it is necessary to count the number of sheets of paper within a specific volume. It is used to check the number of sheets taken from a pile so as to know with certainty, for example, how many will end up in an envelope. The following diagram shows how it can be used.

Schema di montaggio

The system is composed of:

  • an electronic unit that generates and emits a microwave RF signal and subsequently carries out the measurement of its power after it has interacted with the material;
  • a cavity within which the measuring material is placed;
  • connection cables for the RF signal.
SNA v1.2

The measurement takes place in a very short time (<1 ms) and in contactless mode: the material is not altered at all.

Sensors and paper

For more information please use the following form.