TWM457164U - Measuring device - Google Patents

Description

Measuring device

This creation is about the field of measurement, and in particular relates to a measuring device for measuring the size of a precise object.

With the advancement of technology and the increasing importance of data accuracy. Therefore, the requirements for object size accuracy are getting higher and higher, so that the most accurate data can be obtained.

Especially when performing the chemical configuration of various chemical experiments, the more accurate the measurement chemical capacity, the more accurate the results. However, at present, the volume of the chemical agent is judged by visually measuring the scale of the measuring cylinder, and the visual method may cause a slight error due to the difference in the scale of the line of sight which is higher than the liquid level, lower than the liquid level or parallel to the liquid surface, causing slight errors. For chemical experiments with extremely high precision requirements, slight errors will make the experimental results different.

Therefore, it is an urgent problem to develop a device that can more accurately measure the size of an object.

The purpose of the present invention is to solve the above problems, and to provide a measuring device capable of accurately measuring an object size by different changes in light intensity.

In order to solve the above problems, the present invention provides a measuring device for measuring the size of an object. The measuring device comprises a light source unit, a reflector, a sensing unit and a processing unit. The light source unit is configured to provide light to illuminate the object. The object system is placed between the light source unit and the reflector, and the reflector is used to reflect the light passing through the object. The sensing unit is configured to receive the light reflected by the reflector, and output a sensing signal by the intensity of the sensed light. Processing unit for receiving sensing The signal is measured and the size of the object is calculated after the sensing signal is processed.

In order to solve the above problems, the present invention provides another measuring device for measuring the size of an object. The measuring device comprises a light source unit, a sensing unit and a processing unit. The light source unit is configured to provide light to illuminate the object. The sensing unit is configured to receive the light that penetrates the object, and output the sensing signal by the intensity of the light of the sensed light. The processing unit is configured to receive the sensing signal and process the sensing signal to calculate the size of the object.

The advantage of this creation is that the measuring device of the present invention is capable of accurately measuring various objects by utilizing changes in the intensity of light when the light penetrates the object. If the object whose surface is measured is metal, it is only necessary to make the reflectivity of the material selected by the reflector different from the reflectivity of the metal material on the surface of the object, so that the size of the object can be measured by the change of the light intensity.

100, 200‧‧‧ measuring devices

102, 202‧‧‧Light source unit

104‧‧‧reflector

106, 204‧‧‧Sensor unit

108, 206‧‧‧ processing unit

110, 208‧‧‧ containers

1101, 2081‧‧‧chemicals

1081‧‧‧Comparative circuit

1081a‧‧‧ comparator

1081b‧‧‧Variable Resistor Unit

1082‧‧‧Microprocessing unit

L1, L2‧‧‧ rays

L1’, L1”‧‧‧ reflected light

L2’, L2”‧‧‧ penetrated light

S _A ‧‧‧Sensior signal

S _D ‧‧‧Sequence signal

V _rf ‧‧‧reference voltage

1 is a cross-sectional view showing a measuring apparatus according to a first embodiment of the present invention.

2A is a cross-sectional view showing the measurement of the size of the object to be tested by the measuring apparatus according to the first embodiment of the present invention.

2B is a circuit diagram showing a comparison circuit of the measuring device according to the first embodiment of the present invention.

FIG. 3 is a schematic diagram showing a sensing signal according to the first embodiment of the present invention.

Figure 4 is a cross-sectional view showing the measuring device according to the second embodiment of the present invention.

Figure 5 is a cross-sectional view showing the measurement of the size of the object to be tested by the measuring device according to the second embodiment of the present invention.

A specific implementation manner of a short circuit protection circuit for a parallel power supply provided by the present invention will be described in detail below with reference to the accompanying drawings.

Please refer to FIG. 1. FIG. 1 is a cross-sectional view showing the measuring device according to the first embodiment of the present invention. As shown in FIG. 1, the measuring device 100 includes a light source unit 102, a light reflecting plate 104, a sensing unit 106, and a processing unit 108. In some embodiments, the sensing unit 106 and the processing unit 108 can be integrated into one component, but not limited thereto. In this embodiment, the object to be tested system is placed between the light source unit 102 and the reflector 104, and the light source unit 102 and the reflector 104 have a distance d therebetween, and the user can adjust the light source unit according to the size of the object to be tested. The distance d between the 102 and the reflector 104. In some embodiments, the analyte system is bonded to the reflector 104.

Please refer to FIG. 2A for a cross-sectional view showing the measurement of the size of the object to be tested by the measuring device according to the first embodiment of the present invention. As shown in FIG. 2A, the chemical agent 1101 placed in a container 110 is taken as an example. In this embodiment, the container 110 must be a transparent material or a light-transmitting material, and the container containing the chemical to be tested 1101 is contained. 110 is placed between the light source unit 102 and the reflector 104. In this embodiment, the light source unit 102 can be composed of a plurality of LEDs (light emitting diodes) arranged in an array for emitting a plurality of parallel rays L1, and the light rays L1 are parallel to the liquid level of the chemical agent 1101. The direction is incident on the container 110 (the light source unit 102 and the container 110 can maintain a certain distance). When the plurality of rays L1 simultaneously penetrate the space portion of the container 110 containing the chemical agent 1101 and another space portion containing no chemical agent 1101 to reach the reflector 104, the intensity of the light passing through a portion of the chemical agent 1101 is L1. Will be weakened, the reflector 104 will reflect the light L1 into a portion of the reflected light L1" penetrating the chemical 1101 and another portion of the reflected light L1' of the non-penetrating chemical 1101, and then the reflected light L1' , L1 ′′ is transmitted to the sensing unit 106 disposed behind the light source unit 102 . The sensing unit 106 is configured to convert the light intensity of the reflected light L1 ′ and the reflected light L1 ′ that is sensed into a sensing signal SA (see FIG. 2B ) and output to the processing unit 108. The sensing unit 106 is configured by the sensing unit 106. The image sensing module is configured by one or more image sensing modules. For example, when the sensing unit 106 is a plurality of image sensing modules, it can be arranged in a one-dimensional or multi-dimensional array manner.

Please refer to FIG. 2B for further reference. FIG. 2B is a circuit diagram showing a comparison circuit of the measuring device according to the first embodiment of the present invention. The processing unit 108 includes a comparison circuit 1081 including a comparator 1081a, a variable resistor The unit 1081b and the micro processing unit 1082, the variable resistance unit 1081b has a reference voltage Vrf. After the sensing signal SA is input to the comparator 1081a, the sensing signal SA and the reference voltage Vrf are compared, and the binary signal sequence SD is output. When the sensing signal SA is higher than the reference voltage Vrf, the serial signal SD output is Relative to the logic high level High; conversely, when the sensing signal SA is lower than the reference voltage Vrf, the sequence signal SD output is a relatively logic low potential Low. Thereby, the reflected light L1', L1" is converted into a relative logic high potential High and a relative logic low potential Low according to the light intensity. Then, the micro processing unit 1082 respectively according to the cumulative amount of the high potential High and/or the relative logic low potential Low The calculation is performed to calculate the size of the liquid level of the chemical 1101. In this embodiment, the reference voltage Vrf can be obtained by adjusting the resistance value of the variable resistance unit 1081b according to the user's demand.

Referring to FIG. 3 and FIG. 2, FIG. 3 is a schematic diagram showing a sensing signal according to an embodiment of the present invention, that is, the processing unit 108 is displayed according to a relative logic high potential High and/or a relatively logic low potential. Low calculates the capacity or level of the chemical agent 1101 in the container 110.

Please refer to FIG. 4 and FIG. 5 , FIG. 4 is a cross-sectional view showing the measuring device according to the second embodiment of the present invention; FIG. 5 is a view showing the measuring device according to the second embodiment of the present invention. A cross-sectional view of the measured object size. As shown in FIG. 4, the measuring device 200 includes a light source unit 202, a sensing unit 204, and a processing unit 206.

Taking the chemical agent 2081 placed in a container 208 as an example, in this embodiment, the container 208 must be a transparent material or a light-transmitting material, and the container 208 containing the chemical to be tested 2081 is placed in the light source unit 202 and Between the sensing units 204. In this embodiment, the light source unit 202 and the container 208 have a specific distance therebetween, and the user can adjust the distance according to the size of the object to be tested.

In this embodiment, the light source unit 202 is similar to the previous embodiment, and may be composed of a plurality of LEDs arranged in an array for emitting a plurality of parallel rays. L2, and the light rays L2 are incident on the container 208 in a direction parallel to the liquid level of the chemical agent 2081 (the light source unit 102 and the container 110 can maintain a certain distance). The difference between this embodiment and the previous embodiment is that the light source unit 202 of this embodiment is a direct light source, and the light source unit of the previous embodiment is a reflective light source.

When the plurality of rays L2 simultaneously penetrate the space portion of the container 208 containing the chemical agent 2081 and the other space portion containing the chemical agent 2081, since the intensity of the light ray L2 of one of the penetrating chemicals 2081 is weakened, The sensing unit 204 will receive the transmitted light L2" penetrating the chemical 2081 and the transmitted light L2' of the non-penetrating chemical 2081, and the light intensity of the transmitted light L2' and L2" is sensed. A sensing signal (not shown) is output to the processing unit 206. After the processing unit 206 receives the sensing signal, the sensing signal is processed to calculate the capacity of the chemical 2081. The sensing unit 204 is configured by one or more image sensing modules, such as multiple image sensing modules, which can be arranged in a one-dimensional or multi-dimensional array manner.

In this embodiment, the processing unit 206 may also include a comparison circuit (which may be a comparison circuit shown in FIG. 2B or other circuit that can achieve this function), and the operation manner is as described above, and thus will not be described herein.

In summary, the measuring device of the present invention uses a different change of the light intensity when the light penetrates the object to convert into different high and low potentials to accurately measure various objects. If the object whose surface is measured is metal, it is only necessary to make the reflectivity of the material selected by the reflector different from the reflectivity of the metal material on the surface of the object. Therefore, the size of the object can be measured by the change of the light intensity, so the creation is limited to The liquid is measured, and the measuring device of the present invention can digitally measure the data, and transmit the measured data to the database through the network or wireless transmission and store it for remote monitoring purposes.

The above description is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make several improvements and retouchings without departing from the inventive structure, and these improvements and retouchings should also be considered. The scope of protection for this creation.

100‧‧‧Measurement device

102‧‧‧Light source unit

104‧‧‧reflector

106‧‧‧Sensor unit

108‧‧‧Processing unit

110‧‧‧ container

1101‧‧‧Chemicals

L1‧‧‧Light

L1’, L1”‧‧‧ reflected light

Claims (8)

A measuring device for measuring the size of an object, the measuring device comprising: a light source unit for providing light to illuminate the object; a reflecting plate, the object system is placed between the light source unit and the reflecting plate, the The reflector is configured to reflect the light passing through the object; a sensing unit is configured to receive the light reflected by the reflector, and output a sensing signal by sensing the light intensity of the light; and processing The unit is configured to receive the sensing signal, and process the sensing signal to calculate the size of the object. The measuring device of claim 1, wherein the processing unit comprises a comparison circuit for converting the sensing signal into a sequence of signals, so that the light is converted to a relatively high logic level according to different light intensities. / or relatively logic low. The measuring device of claim 2, wherein the comparing circuit comprises a comparator, a variable resistance unit and a micro processing unit, the variable resistance unit has a reference voltage, and the comparator is for comparing The sensing signal and the reference voltage output the sequence signal. The measuring device of claim 3, wherein the sequence signal is relatively logic high when the sensing signal is higher than the reference voltage; and when the sensing signal is lower than the reference voltage, the sequence is The signal is relatively logic low, and the microprocessor unit determines the size of the object based on a relatively high logic potential and/or a relatively low logic potential. A measuring device for measuring the size of an object, the measuring device comprising: a light source unit for providing light to illuminate the object; a sensing unit configured to receive the light that penetrates the object and output a sensing signal by sensing the light intensity of the light; and a processing unit configured to receive the sensing signal and sense the After the test signal is processed, the size of the object is calculated. The measuring device of claim 5, wherein the processing unit comprises a comparison circuit for converting the sensing signal into a sequence of signals, so that the light is converted to a relatively high logic level according to different light intensities. / or relatively logic low. The measuring device of claim 6, wherein the comparing circuit comprises a comparator, a variable resistance unit and a micro processing unit, the variable resistance unit has a reference voltage, and the comparator is used for comparison The sensing signal and the reference voltage output the sequence signal. The measuring device of claim 7, wherein the sequence signal is relatively logic high when the sensing signal is higher than the reference voltage; and the sequence signal is when the sensing signal is lower than the reference voltage The relative logic is low, and the microprocessor unit determines the size of the object based on a relatively high logic potential and/or a relatively low logic potential.