Test | Test type | Number of groups | Resolution limits (LP/mm) | Numerical values | External dimensions (mm) | Main area of application | Type |
---|---|---|---|---|---|---|---|
Group test | 7 | 0,5...4,0 | Engraving | 120 x 40 | visual measuring of resolution (extensive) |
16 | |
Group test | 16 | 0,5...5,0 | Engraving | 110 x 42 | visual measuring of resolution |
1 - 83 (before: Typ 1) |
|
Group test | 16 | 2,0...10 | Diagram | 94 x 50 | visual measuring of resolution |
21 |
Test | Test type | Number of groups | Resolution limits (LP/mm) | Numerical values | External dimensions (mm) | Main area of application | Type |
---|---|---|---|---|---|---|---|
Group test (single reticle pairs) |
28 | 0,5+0,1+0,25...3,55...2,8 | Diagram | 80 x 44 | photometric evaluation, MTF-measuring |
54 | |
Group test | 23 | 0,25+0,5...10,0...6,0 | Diagram | 71 x 44 | photometric evaluation, MTF-measuring |
53 | |
Group test | 48 | 0,25...10...5,2 | Diagram | 62 x 44 | photometric evaluation, MTF-measuring |
56 |
Test | Test type | Number of groups | Resolution limits (LP/mm) | Numerical values (LP/mm) | External dimensions (mm) | Main area of application | Type |
---|---|---|---|---|---|---|---|
Group test | 19 | 0,05+0,1+0,25...3,4+3,7 | Diagram | 95 x 50 | photometric evaluation, MTF-measuring |
52 | |
Group test | 20 | 0,6...5,0 | Engraving | 50 x 50 | visual measuring of resolution | 38 (before: Type 10, Type 20) |
|
Group test | 26 | 0,6...10,0 | Engraving | 65 x 55 | visual measuring of resolution |
81 |
|
Group test | 21 | 0,5...5,0 | Diagram | 55 x 45 | visual measuring of resolution |
18 |
Test | Test type | Number of groups | Resolution limits (LP/mm) | Numerical values (LP/mm) | External dimensions (mm) | Main area of application | Type |
---|---|---|---|---|---|---|---|
Group test | 2 x 6 | 1,0...2,0 | Engraving | 32 mm (diameter) | Visual measuring of resolution | 6-1,0 | |
Group test | 2 x 6 | 2,0...3,0 | Engraving | 32 mm (diameter) | Visual measuring of resolution | 6-2,0 | |
Group test | 2 x 6 | 3,0...4,0 | Engraving | 32 mm (diameter) | Visual measuring of resolution | 6-3,0 | |
Group test | 2 x 6 | 4,0...5,0 | Engraving | 32 mm (diameter) | Visual measuring of resolution | 6-4,0 | |
Group test | 2 x 6 | 1,8...3,15 | Engraving | 32 mm (diameter) | Visual measuring of resolution | VI-1,8 | |
Group test | 2 x 6 | 2,8...5,0 | Engraving | 32 mm (diameter) | Visual measuring of resolution | VI-2,8 | |
Group test | 2 x 9 | 0,5...8,0 | Engraving | 45 x 45 | visuelle Auflösungs- messung |
4a | |
Group test | 2 x 13 | 0,8...5,5 | Engraving | 45 x 45 | visuelle Auflösungs- messung |
4b | |
Group test | 2 x 16 | 1,4...8,0 | Engraving | 45 x 45 | visuelle Auflösungs- messung |
4c |
Test | Test type | Number of groups | Resolution limits in LP/mm | Numerical values LP/mm | External dimensions (mm) | Main area of application | Type |
---|---|---|---|---|---|---|---|
Group test | 2 x 10 | 1,4...8,4 | Engraving | 74 x 35 | Visual measuring of resolution | 68 | |
Group test | 2 x 15 | 0,6...3,4 | Engraving | 50 x 50 | Visual measuring of resolution | 41 | |
Group test | 2 x 14 | 2,0...6,0 | Engraving | 50 x 50 | Visual measuring of resolution | 42 |
Test | Test type | Number of groups | Resolution limits LP/mm | Numerical values LP/mm | Star angle (°)/reticle pairs | External dimensions (mm) | Main area of application | Type |
---|---|---|---|---|---|---|---|---|
Group test | 2 x 15 | 3,4...10,0 | Engraving | 50 x 50 | Visual measuring of resolution | 43 | ||
Group test | 2 x 12 | 2,0...6,0 | Engraving | 60 x 38 | Visual measuring of resolution | 80 | ||
Broom test | infinite | 0,5...5,0 | Engraving | 0,4 / 10 | 150 x 50 | Visual measuring of resolution | 23 | |
Broom test | infinite | 1,5...20,0 | Engraving | 0,4 / 5 | 60 x 30 | Visual measuring of resolution | 39 | |
Broom test | infinite | 1,0...10,0 | Engraving | 0,4 / 10 | 80 x 40 | Visual measuring of resolution | 82 |
Test | Test type | Number of groups | Resolution limits LP/mm | Numerical values LP/mm | Star angle(°)/reticle pairs | External dimensions (mm) | Main area of application | Type |
---|---|---|---|---|---|---|---|---|
Double slit test | 21 | 2,5 (absor- bierendes Umfeld) |
50 x 50 | 13a | ||||
Double slit test | 21 | 2,5 (nicht absor- bierendes Umfeld) |
50 x 50 | 13b | ||||
Sector star test | infinite | 0,63...20 | Diagram | 0,5/14 | 55 (diameter) | focal spot determination | 89/0,50 | |
Sector star test | infinite | 1,27...16 | Diagram | 1/14 | 55 (diameter) | focal spot determination | 9/1,0 | |
Sector star test | infinite | 0,85...16 | Diagram | 1,5/12 | 55 (diameter) | focal spot determination | 9/1,5 | |
Sector star test | infinite | 0,64...10 | Diagram | 2,0/11 | 55 (diameter) | focal spot determination | 9,2,0 | |
Sector star test | infinite | 0,85...16 | Diagram | 1,5 | 55 (diameter) | focal spot determination | 9/1,5/360 | |
Sector star test | infinite | 0,64...10 | Diagram | 2,0 | 55 (diameter) | focal spot determination | 9/2,0/360 |
Reinhold Funk
Röntgenteste - Herstellung und Vertrieb
Handelsgesellschaft
Groß- und Einzelhandel
Halbmondstraße 2
91054 Erlangen
Telephone: +49-9131-22177
Telefax: +49-9131-25684
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
We do not take part in online dispute resolutions at consumer arbitration boards.
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Legal obligations to removing information or to blocking the use of information remain unchallenged. In this case, liability is only possible at the time of knowledge about a specific violation of law. Illegal contents will be removed immediately at the time we get knowledge of them.
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Should the tests in our list no be suitable for your special area of application with regard to form and/or material, we also manufacture tests according to your indications.
Please send us an outline indicating the thickness of the ray-absorbing material.
We would be pleased to send you a not binding estimate.
November 2022
The following information will provide you with an easy to navigate overview of what will happen with your personal data when you visit this website. The term “personal data” comprises all data that can be used to personally identify you. For detailed information about the subject matter of data protection, please consult our Data Protection Declaration, which we have included beneath this copy.
The data on this website is processed by the operator of the website, whose contact information is available under section “Information about the responsible party (referred to as the “controller” in the GDPR)” in this Privacy Policy.
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Please do not hesitate to contact us at any time if you have questions about this or any other data protection related issues.
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We use IONOS on the basis of Art. 6 (1)(f) GDPR. Our company has a legitimate interest in presenting a website that is as dependable as possible. If appropriate consent has been obtained, the processing is carried out exclusively on the basis of Art. 6(1)(a) GDPR and § 25 (1) TTDSG, insofar the consent includes the storage of cookies or the access to information in the user’s end device (e.g., device fingerprinting) within the meaning of the TTDSG. This consent can be revoked at any time.
The operators of this website and its pages take the protection of your personal data very seriously. Hence, we handle your personal data as confidential information and in compliance with the statutory data protection regulations and this Data Protection Declaration.
Whenever you use this website, a variety of personal information will be collected. Personal data comprises data that can be used to personally identify you. This Data Protection Declaration explains which data we collect as well as the purposes we use this data for. It also explains how, and for which purpose the information is collected.
We herewith advise you that the transmission of data via the Internet (i.e., through e-mail communications) may be prone to security gaps. It is not possible to completely protect data against third-party access.
The data processing controller on this website is:
Reinhold Funk
Halbmondstraße 2
91054 Erlangen
Phone: +49-9131-22177
E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
The controller is the natural person or legal entity that single-handedly or jointly with others makes decisions as to the purposes of and resources for the processing of personal data (e.g., names, e-mail addresses, etc.).
Unless a more specific storage period has been specified in this privacy policy, your personal data will remain with us until the purpose for which it was collected no longer applies. If you assert a justified request for deletion or revoke your consent to data processing, your data will be deleted, unless we have other legally permissible reasons for storing your personal data (e.g., tax or commercial law retention periods); in the latter case, the deletion will take place after these reasons cease to apply.
If you have consented to data processing, we process your personal data on the basis of Art. 6(1)(a) GDPR or Art. 9 (2)(a) GDPR, if special categories of data are processed according to Art. 9 (1) DSGVO. In the case of explicit consent to the transfer of personal data to third countries, the data processing is also based on Art. 49 (1)(a) GDPR. If you have consented to the storage of cookies or to the access to information in your end device (e.g., via device fingerprinting), the data processing is additionally based on § 25 (1) TTDSG. The consent can be revoked at any time. If your data is required for the fulfillment of a contract or for the implementation of pre-contractual measures, we process your data on the basis of Art. 6(1)(b) GDPR. Furthermore, if your data is required for the fulfillment of a legal obligation, we process it on the basis of Art. 6(1)(c) GDPR. Furthermore, the data processing may be carried out on the basis of our legitimate interest according to Art. 6(1)(f) GDPR. Information on the relevant legal basis in each individual case is provided in the following paragraphs of this privacy policy.
A wide range of data processing transactions are possible only subject to your express consent. You can also revoke at any time any consent you have already given us. This shall be without prejudice to the lawfulness of any data collection that occurred prior to your revocation.
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If you have restricted the processing of your personal data, these data – with the exception of their archiving – may be processed only subject to your consent or to claim, exercise or defend legal entitlements or to protect the rights of other natural persons or legal entities or for important public interest reasons cited by the European Union or a member state of the EU.
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The processing of these data is based on Art. 6(1)(b) GDPR, if your request is related to the execution of a contract or if it is necessary to carry out pre-contractual measures. In all other cases the processing is based on our legitimate interest in the effective processing of the requests addressed to us (Art. 6(1)(f) GDPR) or on your agreement (Art. 6(1)(a) GDPR) if this has been requested; the consent can be revoked at any time.
The information you have entered into the contact form shall remain with us until you ask us to eradicate the data, revoke your consent to the archiving of data or if the purpose for which the information is being archived no longer exists (e.g., after we have concluded our response to your inquiry). This shall be without prejudice to any mandatory legal provisions, in particular retention periods.
We collect, process, and use personal customer and contract data for the establishment, content arrangement and modification of our contractual relationships. Data with personal references to the use of this website (usage data) will be collected, processed, and used only if this is necessary to enable the user to use our services or required for billing purposes. The legal basis for these processes is Art. 6(1)(b) GDPR.
The collected customer data shall be deleted upon completion of the order or termination of the business relationship and upon expiration of any existing statutory archiving periods. This shall be without prejudice to any statutory archiving periods.
In order to determine visually the resolution values reticle group tests have proved to be a very good investment. Depending on the system to be checked, those tests are available with different frequency ranges and different grading.
For the examination of intensifying foils tests with reticle groups arranged in only one direction are sufficient: system faults of different directions are not to be expected, geometrical faults dependent on direction will not have any influence on the test, as the tests are put directly on the cassette.
When checking optical relay systems where different resolution values of tangential and meridional direction due to specific optical aberrations can be expected (for instance in RGB systems) it is advisable to use tests with dense reticle groups, vertically arranged to one another.
In order to avoid reading errors due to the so-called pseudo focus, the number of test group bars visible in the picture should correspond with that of the test. A special form of the group test is the broom test with its continually changing local frequencies. With ist aid reading errors due to pseudo focus can surely be avoided.
To avoid Moiré-effects and the resulting reading uncertainties when using a stray radiation screen it should be taken into account to arrange the reticle groups under an angle of 45° to the segment direction of the stray radiation screen.
For photometric measuring - and determination of the modulation transfer function (MTF) of a transfer system - tests without gaps between the single reticle pairs or reticle groups were developped in order to avoid measuring errors caused by vicinity effects. To obtain a constant measuring reliability over the whole frequency range, the values drop to the same extent after reaching the highest local frequency (compare tabular test description).
With the aid of a star test (or a sector star test) exposure, the size and form of a focal spot can easily be determined. This method takes less trouble than the slit or pinhole camera method and is sufficient for the solution of many problems, on condition that there is an approximately ideal intensity distribution.
The focal spot expansion l ensues from the formula
a =star angle (see tabular test description)
d =diameter of the blurred figure on the test exposure
m =scale of exposure (= star diameter of the exposure : star diameter of the test); for focal spots 0,6 mm an exposure scale m = 2 proved to be good.