JPH0415521A - Adjustment device for measuring equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to measuring instruments, and particularly to an adjusting device for measuring instruments that facilitates adjustment thereof.

[Conventional technology]

Measuring devices that measure and display physical quantities or chemical quantities such as light or electricity detect physical quantities or chemical quantities or changes in them from the object to be measured, and then, based on the detected measured quantity,
Performs the necessary data processing, converts the results into analog or digital quantities, and displays them on meters, recorders, numerical displays, etc.
Output to an output means such as a printer or a cathode ray tube. The mode of output depends on visual means such as display and recording.

Related devices of this type include, for example, Matsui et al.
Thin film thickness measurement using the T-5000 Hitachi High Speed Film Thickness Measuring System THE HITACHI SCIENTIFI
CINSTRUMENT Nmons Rikko <1> 1988
p27 etc.

In recent years, this type of measuring equipment has become larger due to the sophistication of its principles, increased complexity due to built-in computers, and expansion of the range of applications, and some are made up of multiple units. As measuring instruments become more sophisticated and complex, the need for equipment adjustment increases. For example, optical measuring instruments require various tuning prior to measurement in order to measure with optimum sensitivity, good S/N, and high precision, such as the arrangement of the sample and the alignment of the optical system. Measuring equipment that uses a microscope or the like to measure minute parts of a sample also involves focusing and micro-movement adjustment of the sample. Such adjustments are generally performed visually, and finally, optimal fine adjustments are made while monitoring the displayed values output from the measuring equipment.

[Problems to be Solved by the Invention] However, with such conventional devices, as the device itself becomes larger, it has become difficult to monitor the display results while making adjustments. The result display part of the device and the adjustment part are not necessarily located close to each other, and when making delicate adjustments, it may be impossible to take one's eyes off the adjustment part. In the above-mentioned measuring instruments using a microscope, the operator needs to make adjustments while looking into the microscope, and it is difficult to simultaneously monitor the result display of the measuring instrument. Some optical measuring instruments require work in a dark place, such as a darkroom, and in such cases, it is difficult to make adjustments and monitor measurement results at the same time.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned drawbacks of conventional measuring instruments and to facilitate adjustment of the measuring instruments.

[Means to solve the problem]

For the above purpose, in the present invention, the measurement results are expressed by converting them into audible sounds, and the operator making the adjustment is informed of the measurement results using sound waves. That is, the apparatus includes a sound wave generating means that generates a sound wave according to the amount of signal from the detection means of the measuring device, and changes the height of the generated sound wave, for example, depending on the amount of signal from the detection means.

[Effect]

The operator listens to this sound and makes adjustments to make the sound as high as possible, thereby easily adjusting to a suitable state without looking at the measurement result display. The method of generating sound waves does not necessarily have to change the pitch (frequency) of the sound depending on the magnitude of the signal from the detection means, but it is also possible to change the volume of the sound, the intermittent period, etc., or a combination thereof. good. The purpose of sound wave generation is to determine whether the operator's adjustment is being adjusted in a good direction or in a bad direction, so the relationship between the amount of signal from the detection means and the change in sound waves is relative. Since it does not require proportional accuracy, it can be easily configured. For accurate measurement results, just look at the result display on the measuring device. Also, since relative values are sufficient, for example, if the sound gets too high, the frequency of the sound can be reset to a certain value by the operator's operation.
The operator can always continue making adjustments within a comfortable frequency range. Furthermore, if the sound is bothersome, it is possible to eliminate the discomfort by providing an operating means for stopping the generation of sound waves.

〔Example〕

An embodiment of the present invention will be described below with reference to FIG. 1st
The figure is a functional system diagram showing one embodiment of the present invention. The detection means 5 is a detection means for detecting a physical quantity such as a light quantity or an electric quantity, or a chemical quantity.

Usually, this detection means is preceded by, for example, a light source and a spectrometer.

Elements that make up the measurement equipment, such as the sample to be measured and the microscope, are arranged according to the measurement purpose.

In this embodiment, a microspectrophotometer is shown as an example of the measuring instrument. A light beam from a light source 1 is focused by a microscope 2 and irradiated onto a minute portion of a measurement sample 3. The reflected light from the measurement sample 3 passes through the microscope again and is focused onto the entrance slit 41 of the spectrometer 4. The spectrometer 4 separates the incident light according to its wavelength, and light of a specific wavelength passes through an output slit 44 and is detected by a detection means 5 such as a photomultiplier tube.

The drive device 45 is provided to rotate the diffraction grating 43 to change the wavelength of the light that reaches the detection means 5 from the output slit 44, that is, to perform wavelength scanning. When the wavelength scan is stopped, the spectral reflectance of the measurement sample at that wavelength is obtained as a measurement result, and when the wavelength is scanned, the spectral reflection spectrum is obtained as the measurement result. These reflectance and spectrum calculations are performed by a digital measuring device 8, which will be described later. The signal amount detected by the detection means 5 is converted into a proportional electric signal, amplified by an amplifier 6, converted into a digital amount by an A/D converter 7, and then input into a digital computer 8. The digital computer 8 processes the captured signal amount according to the purpose of measurement, outputs it as a measurement result such as a spectral reflection spectrum, and the output data is displayed on the measurement result display 9. When adjusting the equipment, the measurement result display 9 displays not only the final measurement result, such as the shape of the spectrum, but also the absorbance and reflectance at a certain wavelength, and the value of the signal amount itself detected by the detection means 5 at that time. etc., visually displayed digitally or analogously.

- In the Rikiki invention, when adjusting equipment, the digital computer 8 outputs a voltage proportional to the amount of signal detected by the detection means.
/A converter 10.

This output signal is converted by a voltage-frequency converter 11 into a signal with a frequency corresponding to the detection signal, amplified by an amplifier 12, and drives a speaker 13 to generate a sound wave. The height of the generated sound wave corresponds to the amount of signal detected by the detection means 5. Therefore, the operator of the measuring device can rely on the height of the sound from the speaker without looking at the measurement result display 5. As a result, it is possible to adjust the equipment so that the sound becomes higher and concentrate on the adjustment work.

In recent years, measuring instruments often have a built-in digital computer, and the signal amount from the detection means 5 is transmitted to the sound wave generation means 10, 11,
12, 13, etc., but it is also possible to directly drive the speaker 13 with the output signal from the amplifier 6.

〔Effect of the invention〕

As described above, according to the present invention, when adjusting a measuring device, it is possible to perform adjustment work based on audible sound waves without looking at the means for visually displaying measurement results.
It is possible to concentrate on adjustment work and improve adjustment efficiency. Further, the configuration of the present invention can be constructed extremely easily by using a sound wave generating means such as a speaker that is normally provided in measuring instruments and notifies operational errors etc. with sound.

[Brief explanation of drawings]

FIG. 1 is a functional configuration diagram showing an embodiment of the present invention. 1... Light source, 2... Microscope, 3... Measurement sample, 4
... Spectrometer, 5... Detection means, 6... Amplifier, 7
... A/D converter, 8... Digital computer, 9.
...Measurement result display, 10...D/A converter, 11.
...Voltage-frequency converter, 12...Amplifier, 13...
・Speaker, 21...Lens, 22...Half mirror 123...Reflector, 41...Incidence slit, 42
... Concave mirror, 43 ... Diffraction grating, 44 ... Output slit, 45 ... Drive device.

Claims (1)

[Scope of Claims] 1. A measuring instrument having a detection means for detecting a physical quantity such as a quantity of light or an quantity of electricity or a chemical quantity, and an output means for displaying or recording data based on a signal from the detection means, A sound wave generating means for generating sound according to the amount of signal from the detection means is provided, and the sound wave generated by the sound wave generating means is
An adjusting device for a measuring instrument, characterized in that the characteristics of the generated sound wave, such as its frequency, magnitude, or intermittent period, change in accordance with the amount of signal from the detection means. 2. In claim 1, the measuring instrument includes an operating device operated by an operator, and each time the operating device is operated, the property of the sound wave generated from the sound wave generating means is set to a certain frequency or magnitude. Or an adjustment device for measuring instruments characterized by resetting to a reference state such as an intermittent cycle. 3. The adjusting device for a measuring instrument according to claim 1, characterized in that the operation of the sound wave generating means can be turned ON/OFF.