SU760145A1 - Temperature signalling device - Google Patents

Description

The invention relates to the field of alarm and can be used as a signaling device and temperature meter. _five

There are signaling devices and temperature recorders, for example, on an airplane, containing thermal indicators or thermal thermometers, in which temperature sensors are connected directly to a pointer or loop oscilloscope [Υ].

The disadvantages of such devices are the inoperability of information retrieval, a large measurement error, and the complexity of application in

hard to reach places.

• For remote measurement and temperature recording, when the temperature sensor is connected Directly by the pointer, made in the form of a pointer instrument, constant visual monitoring is required from the pilot's side, distracting him from performing BASIC functions, there is no safety of information until the end of the flight and after power has been removed .

The closest technical

entities to the proposed device '

is a temperature detector, in

where the current value of the temperature in flight is recorded on the indicator. The device includes a temperature sensor connected to an opto-mechanical transducer associated with a photochemical transducer. Photochemical paper serves as a photochemical transducer [2].

The main disadvantages of the prototype device are the lack of real-time information about the temperature in flight, the need for additional decoding of the information received, and, consequently, considerable time for obtaining data, i.e. low speed operation of the detector, significant weight and dimensions of the equipment used.

The aim of the invention is to increase the speed of the temperature detector.

This goal is achieved by the fact that the signaling device has a setting and switching unit, an information reading unit, a starting position block for the registration channels type, each of which is performed on a series-connected photoelectric converter and driver, a memory unit and an indicator, and a sensor output3

760145. four

When the temperature is connected, to one input of the tuning and switching unit, the other input of which is connected to one of the shaper outputs of one of the registration channels, the output of the tuning and switching unit is connected to the input of the optical-mechanical converter, the output of which is optically

connected to photoelectric converters of all, registration channels, the second and third inputs of all memory blocks are connected to the outputs of the information read block of the initial position block, respectively.

The drawing shows the block diagram of the proposed temperature detector '. ·. '

The detector contains a temperature sensor 1 connected in series, a setting and switching unit 2 and an optical-mechanical converter 3, η recording channels, each of which consists of a photoelectric converter 4, a driver 5, a memory unit 6 and an indicator 7, an information reading unit 8 and block 9 of the original position.

The work of the proposed detector as follows.

The electrical signal e of the temperature sensor 1 through the unit 2 settings and switching is fed to the input of the opto-mechanical transducer 3. In the opto-mechanical transducer 3 the electrical signal is converted into a light, the deviation angle of which is proportional to the electrical signal from the temperature sensor 1.

The total deflection angle of the beam is proportional to the range of temperature change and is divided into several points at which photoelectric converters are installed 4. The light signal arriving at the input of photoelectric converter 4 is converted into electric and through shaper 5 enters memory block 6 and further - to indicator 7 . To the second inputs of the memory blocks 6 is connected

'block 8 of reading information intended to read stored information about the temperature in any. moment of time. To the third entrances. memory blocks 6 is connected to the block 9 of the initial position, designed to · remove the memory and set in the initial position of the detector.

Due to the fact that the specific implementation of the device is carried out in the form of a block of unchanged structures, and

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The ranges of measured temperatures can vary widely, the device provides the possibility of reconfiguring it. To do this, a voltage equal to the maximum signal from the temperature sensor 1 is applied to the first input of the setting and switching unit 2 and the max35 setting is performed using the setting and switching unit

maximum deflection of the beam on the photoelectric converter 4, place. whose position corresponds to the maximum temperature value. During operation of this device, it is possible that the temperature exceeds the maximum set point and, in order to protect the optomechanical transducer 3 from the modes dangerous for its operation, a connection is made from the second output of the last cell to the other input of the setting And switching unit 2. ' . ·

The safety of information is achieved by introducing into the device a memory block independent of electrical

The power supply is made, for example, in the form of a mechanical latch. The device allows you to 'save information without time limit and play it at any time.

The proposed alarm allows you to signal the temperature reaching or exceeding the permissible value, attracting the attention of the pilot only at the moment of ignition (the indicator, detect, temperature rise areas and save up to five information until the end of the flight, including when the power supply is disconnected. " If necessary, signals from memory blocks 6 can be sent to the recorder with a timer and to turn on cooling in cases of exceeding the permissible temperature. not for signaling and recording not only temperature, but also other parameters with appropriate replacement, a temperature sensor on the sensor for measuring the required parameter, such as pressure, strain, linear displacement, etc.

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Claims (1)

Claim A temperature detector that contains a temperature sensor and an optomechanical transducer, which is designed so that, in order to increase the speed of the detector, it has a tuning and switching unit, an information reading unit, a starting position block and η registration channels , each of which is made on a series-connected photoelectric, converter and driver, memory unit and indicator, sensor output: temperature is connected to one input of the tuner and switching unit, the other input of which One of the connections from the output of the one of the channels' accounts, yield kommutatsiipodklyuchen tuner and to the input of opto-mechanical converter, whose output is optically connected to the photoelectric preobraeoϊ Beds of all registration channels, the second and third inputs of the memory blocks are connected to the outputs of the information reading block and the initial position block, respectively.